Inverter Systems
For Gen 3 Drives of
HEIDENHAIN Controls
Information for the
Machine Tool Builder

03/2023

HEIDENHAIN inverter systems

Contents

The Gen 3 inverter systems from HEIDENHAIN are suitable forthe operation of HEIDENHAIN controls with digital speed control
and communication via Gbit HSCI. These drives are designed forthe operation of synchronous and asynchronous motors from
HEIDENHAIN.

UVR 340, CC 306
with modular inverters

Intended use

The products described in this brochure:• may be used only for NC-controlled machine tools,• may be used only in an industrial setting, for commercial
applications, or in research institutions,• must be operated in accordance with the product requirements(specifications, environmental data, safety instructions, etc.),• and must be operated in an electrical cabinet.
The machine manufacturer must ensure that the end productmeets all of the requirements of the Machinery Directive(2006/42/EC). This is particularly the case when the devices areused as part of a safety function.

Improper use

The devices are not intended for applications in areas wherea failure would result in considerable risk to humans or theenvironment. Usage in potentially explosive atmospheres is
prohibited.

System test

Controls, power modules (such as inverters, power supply units,
and their accessories), motors, and encoders from HEIDENHAIN
are usually integrated as components into complete systems.
In such cases, comprehensive testing of the complete system
is required, irrespective of the specifications of the individual
devices.

Parts subject towear

Power modules (power supply units, inverters, and compact
inverters) from HEIDENHAIN contain parts subject to wear—
particularly fans.

Standards

Standards (ISO, EN, etc.) apply only where explicitly stated in thisbrochure.

ValidityThis brochure supersedes all previous editions, which thereby
become invalid. Subject to change without notice.

Precondition

This brochure contains basic information about the selection of thecomponents. All of the descriptions and specifications provided in
the Technical Manuals must always be complied with.

2

HEIDENHAIN inverter systems

2

Modular inverter systems

9

Accessories for modular inverter systems

40

Compact inverters

47

Accessories for compact inverters

65

General accessories for inverter systems

70

Overview of cables

82

Mounting information

84

Dimensions

87

Subject index

117

3

HEIDENHAIN inverter systems

HEIDENHAIN Gen 3 inverter systems are available in different
designs. The modular versions, which are available solely as
regenerative systems, have a power rating of 15 kW to 135 kW.
The compact versions have a power rating of up to 30 kW. The
compact inverters are non-regenerative devices which, however,can be expanded with an optional regenerative module.

DC-link voltage

The inverter systems from HEIDENHAIN use a rectifier bridge
circuit to convert the connected line power into the DC-link voltage
and other auxiliary voltages for the power module electronics
and other control components, such as for the controller unit
and the main computer. The rectified and—in the case of a UVR
3xx power supply unit—closed-loop DC-link voltage is directed
through the IGBTs to the drive motors with controlled frequency
and voltage. Control is accomplished by PWM signals.
The closed-loop DC-link voltage is DC650V or DC720 V for
modular systems with a UVR 3xx.
The open-loop DC-link voltage is DC565V to DC 680V for
UEC 3xx (FS) compact inverters.

UVR 340

Regenerative
inverter systems

With regenerative inverter systems, the braking energy ofthe motors is fed back into the power supply network. For thispurpose, regenerative modular inverter systems require additional
components such as a line filter and a commutating reactor(see Accessories for inverter systems).

Non-regenerative
compact inverter
systems

With non-regenerative compact inverter systems, the braking
energy of the motors is converted into heat. That is why a braking
resistor is mandatory (see Accessories for inverter systems).
In addition, an optional regenerative module is available for
the UEC 3xx (FS) compact inverters. For these systems, nocommutating reactor or line filter is necessary in general evenwhen a regenerative module is used.

Supply voltage

For the permissible supply voltages, please refer to the following
specifications. The inverter systems are intended for connection
to a TN supply network. Other power supply systems or otherline voltages may need to be adapted by means of a transformer.
HEIDENHAIN recommends a TN-S, TN-C, or TN-C-S network forthe operation of its power modules. Please refer to the Technical
Manual of your inverter system.

4

Safety functions forexternal safety

HEIDENHAIN inverter systems make it possible to shut down
the inverters centrally over special inputs for deleting the pulse
release for PWM control of the IGBTs. This is equivalent to the
STO safety function. The Gen 3 inverters also support a dualchannel SBC braking system via corresponding outputs directly on
the inverter. In addition, the machine manufacturer can configure
an SS1 stop reaction in which emergency stop braking to standstillis performed, controlled by the controller unit.
If needed, up to eight axis groups can be formed for which
separate switch-off is possible (e.g., axes for the tool magazine).
For controls without integrated functional safety (FS), the safetyfunctions are triggered over a special PL module for the drive
enable.

5

Integratedfunctionalsafety (FS)HEIDENHAIN also offers control systems with integratedfunctional safety (FS). These control systems offer a series ofsafety functions (STO, SLS, SLP, SBC, SS1, SS2, and safe PLC
program), as well as easy implementation of up to four safetyrelated operating modes.

Compact inverters

Control systems with functional safety (FS) feature two
independently operating, redundant safety channels thatcollect, process, and output all safety-relevant signals. For
more information on this topic, please refer to the Gen 3 Drives
Technical Manual and the Functional Safety (FS) Technical Manual.

The housing of the UEC 3xx (FS) compact inverters contains both
the rectifier for producing the DC-link voltage and the IGBT fullbridges for up to five motors. Compact inverters are available
with a power rating of 15 kW to 30 kW. For the UEC 32x (FS) and
UEC 33x (FS) an external braking resistor is required additionally;
for the UEC 31x (FS) it is already integrated in the device. The
compact inverters can be expanded to include additional inverters
and controller units of the modular system in order, for example,
to retrofit axes on a machine. These inverters and controller units
are connected to the compact inverter via a 24 V bus mounting
and a DC-link bus mounting. Please note that the total power
consumption of the connected motors must not exceed thepower rating of the compact inverter!

Functional safety (FS) is scalable by means of software options.
Only the number of safe motors that you actually need must be
enabled. For more information on these software options, pleaserefer to the brochure for your control:

Modular inverters

BrochureID

TNC7

1364560-xx

TNC 6401303179-xx

TNC 620895922-xx

TNC 3201113513-xx

TNC 128

827228-xx

CNC PILOT 640

896094-xx

MANUALplus 620

743682-xx

Systems with compact inverters consist of the following
components:• A UEC 3xx (FS) compact inverter, including the necessary
additional components (e.g. braking resistor)• Optional: multiple UM power modules for axes and spindles• Optional: a controller unit and an HFL cable for controlling theinverters (HFL = HEIDENHAIN Fiber Link)• Optional: regenerative module• Accessories such as the CMH 3xx or SM 3xx

Modular inverter systems consist of the following modules:• A UVR supply unit, including the necessary additional
components (e.g., KDR, line filter)• Multiple UM power modules for axes and spindles• One or more controller units and an HFL cable for controlling theinverters (HFL = HEIDENHAIN Fiber Link)• Accessories such as the CMH 3xx or UP 3xx

Additional power
supplySupply units and compact inverters additionally have a DC24 V
output (X90 connector). This voltage is DC-link-buffered and canbe used to supply the MC main computer and other control
components with a 24 V power supply.

Failure rates

For HEIDENHAIN devices, such as control components, encoders,and motors, your HEIDENHAIN contact person can provide
you with additional device-specific data upon request (such as
failure rates and information on fault exclusion).

UEC 325 (FS)In modular systems, the UVR power supply unit produces therectified DC-link voltage. The IGBT full bridges are housed in theseparate UM power modules. The DC-link power bar conducts theDC-link voltage to the power modules. The UMs are supplied with
the necessary 24 V supply voltage over the 24 V bus mounting.
The controller unit is connected to the modular inverters via the
HFL cable and drives the IGBTs by means of PWM signals.
UM 3156

7Modular inverter systems
System overview

Power supply forconnected modules

The current consumption of the electronics of the modular
inverters and controller units is largely dependent on their power
rating. Thus, in the planning stage of the control system, pleasecheck the current consumption of the DC24 V supply in theSpecifications. The power supply unit's or compact inverter's own
consumption does not need to be considered in this context.
The UVR power supply units and UEC compact inverters feature
an additional integrated power pack that provides a DC 24 V
voltage for the control system and other PLC components:• Supply of components that are connected to the 24 V bus
mounting of the inverter group (inverters and their brakes,
controller units, and electrical cabinet version of the main
computer)• Supply of further control components such as the main
computer in the operating panel, monitor, machine operating
panel, PL modules, etc.
• Supply of machine-specific PLC components, such as 24V
relays
The integrated power adapter is buffered by the DC link, thereby
ensuring that, in the event of a power failure, the connectedcomponents will continue to be supplied so that any concluding
actions, such as the LIFTOFF function, can still be performed. A
complete power failure must be considered separately. As themachine manufacturer, you should consider measures for the
event of a power failure where applicable.
For the performance data of the power pack, please refer to thespecifications. When planning, please also consider the power
requirements of the connected inverters, encoders, and controller
units, in addition to the HSCI/PLC components. If the power of the+24 V power pack in the UVR 3xx or UEC 3xx power supply unit
is not sufficient, the PSL 330 low-voltage power supply unit canbe used additionally. For further information on project planning,please refer to the Technical Manual of your inverter system.

UVR 350A HEIDENHAIN control system with a modular inverter system
typically consists of the following components:• MC main computer, monitor, keyboard, and machine operating
panel• PLB 62xx FS or PLB 62xx system PL and PAE-H 08-00-01• CC 3xx controller unit
• UVR 3xx power supply unit
• UM 3xx modular inverters• KDR 3xx commutating reactor• Line filter for the UVR 3xx• Siemens SITOR gR or gS line fuse
• UP 3xx braking resistor module (if necessary)• Surge protector (if necessary)• SM 3xx voltage protection module (if necessary)• CMH 3xx capacitor module (if necessary)• Shielded motor power cables• Feed and spindle motors
The Gen 3 drives are notable for the following features:• Higher peak and nominal currents with a more compact
enclosure• Fast Gbit HSCI communication all the way to the UVR 3xx
power supply unit, for greater flexibility and improved
diagnostics• Digital HFL (HEIDENHAIN Fiber Link) cable for control of theinverters, for faster and interference-free data transfer• Contiguous bus mounting for supply voltages (DC link, 24 V),
allowing for very simple wiring and any arrangement orsequence of the power supply unit, power modules, controller
unit, and main computer• Hybrid connector for the connection of motor phases, the brake,
and the shield with a single connecting element• New, miniaturized connector technology for the connection ofpurely serial EnDat encoders

The +24 V supply voltage is required for the complete control
system as a safely separated voltage (PELV according to
EN 61800-5-1). These safely separated circuits must not be mixed
with or connected to supply circuits with basic insulation or othersupply circuits.
Motor currents

The modular inverters and the compact inverters are available ingrades that allow for excellent adaptation to the required motor
currents or torques. In addition, the PWM frequency can be
adjusted to the motor current. Please bear in mind that very highspindle speeds require a higher PWM frequency.

HFL cable and bus
mounting

The individual modular inverters are connected via HFL cables(optical fiber), connectors for the 24 V bus mounting, and DClink busbars. The HFL cables must be cut to the proper length orordered on a reel for individual assembly, and are not included indelivery.
For all modular components, the connectors for the 24 V bus
mounting and the DC-link busbars for the specific device areincluded in delivery.
In order to connect modular components (such as UM, CC, RM) toa UEC 3xx (FS) compact inverter, one jumper plug for the 24 V bus
mounting must be ordered separately.

8

9

Gbit HSCIThe introduction of the Gen 3 drives came with a transition
to faster Gbit HSCI communication between the control
components. Gbit HSCI enables the transmission of additional
Gen 3 diagnostic data and can accommodate an expanded rangeof functions in the future. A transition to Gbit HSCI is therefore
required for all HSCI components of the control system. Control
components that support Gbit HSCI are labeled "Gen 3 ready"on the device. The ID numbers or variants of the required HSCI
components (MC, MB, TE, HSCI cable) can be found in yourcontrol's Technical Manual.

Permissible numberof components

Maximum permissible number of individual Gbit HSCI
components as of NCK software 597110-16:
Gbit HSCI component
MC, IPC

Maximum number in thecontrol system1)
HSCI master

1

CC, UEC (drive-control motherboards) HSCI slave

6

UVR

HSCI slave

5MB, PLB 600x

HSCI slave2

PLB 6xxx(integrated in UEC 3xx (FS))

HSCI slave

7

PLB 6xxx FS(integrated in UEC 3xx FS)

HSCI slave

2

HR

5

PLD-H xx-xx-xx FS

In PLB 6xxx FS

102)

PLD-H xx-xx-xx,
PLA-H xx-xx-xx

In PLB 6xxx (FS)252)

PAE-H xx-xx-xx

In PLB 62xx

13)

UEC 3xx for external safety

HSCI slave (PAE module integrated)

13)1) For more information on the NCK software, see the Technical Manual of the respective control.

2) Total maximum of 1000 inputs/outputs and maximum of 10 PL units (PL, PLB, MB, TE)
3) Only in systems without integrated functional safety (FS)In an HSCI system, however, up to 21 HSCI slaves are
permissible. During planning, please note that this maximum
number must not be exceeded.

11Differences between the inverter systems

Brief overview

The following images provide a comparison of the currently
available inverter systems:

1xx inverter systems (UVR 1xx, UM 1xx, UE 2xx, UR 2xx, UEC 1xx)

Gen 3 drives

12

Inverter systems
based on devices

Device/function

1xx inverter system

Gen 3 drives

Inverter

UM 1x1 to UM 1x7

UM 3x0 to UM 3x7

Power supply unit

UVR 130 to UVR 170
UV 130 D

UVR 330 to UVR 370
UEC 3xx (FS)Controller unit

CC 6106, CC 6108,
and CC 6110

CC 302, CC 306,
CC 308, and CC 310

Compact inverter

UEC 1xx, UE 2xx, and UR 2xx

UEC 3xx (FS)Regenerative module forcompact inverter

None

RM 330DC-link filter

ZKF 1x0

Not required

Commutating reactor

KDR 120 to KDR 170

KDR 330 to KDR 370

Line filter

EPCOS 35 A to 200 A

EPCOS 46 A to 202 A

DC-link capacitor module

CMH 120

CMH 320

Braking resistor module

UP 110 and UP 120

UP 310 and UP 320

Braking resistor

PW 210PW 310Power adapter

PSL 13xIntegrated in power supply unit oralso PSL 330

External safety

Axis-enable module(s),ID 573732-xx

PAE-H 08-00-01,
ID 1203881-xx

Wiring of the power modules

Ribbon cables for PWM signals,
device bus, and supply bus

Optical fiber cables (HFL), bus
mountings

CoversCovers for ribbon cables

Not required

Multi-row configuration

MS 11xConnection kits for convenient wiring

24 V capacitor module

CML 110,
ID 574087-xx

Not required

Control components

MC, MB, TE, PLB
with 100 Mbit HSCI

MC, MB, TE, PLB
with Gbit HSCI

Motor power cables

Unshielded cables

Shielded cables

Adapter module

Adapter module,
ID 352762-xx

Not required

Fan unit

For the UM 116D and UVR 170D,
ID 749973-xx

Not required

Water cooling

Hose kit,
ID 584862-01

Hose kit,
ID 584862-01

Sine-wave drive

Not available

UMS 312

Cable extension module

Not available

CEM 330

13

Commutating
reactors

Differences basedon ID number
Power supply units

Modular inverters

1xx inverter systems

Gen 3 drives
ID 1164511-xx

KDR 120

ID 344505-xx

KDR 330

ID 1164204-xx

KDR 130C

ID 646271-xx

KDR 140

ID 333068-xx

KDR 340

ID 1164205-xx

KDR 150

ID 355253-xx

KDR 350

ID 1164206-xx

ID 1095625-xx

UVR 130D

ID 1095626-xx

UVR 140D

ID 1084190-xx

UVR 340

ID 1168321-xx

KDR 160

ID 573265-01

KDR 360

ID 1164276-xx

UVR 150D

ID 1080611-xx

UVR 350

ID 1064350-xx

KDR 170

ID 735563-xx

KDR 370

ID 1164277-xx

UVR 160D

ID 1095627-xx

UVR 360

ID 1118870-xx

UVR 160DW

ID 1095809-xx

UVR 360W

ID 1237086-xx

UVR 170D

ID 807429-xx

UVR 370

ID 1163158-xx

UVR 170DW

ID 546911-xx

UVR 370W

ID 1237088-xx

UV 130 D

ID 824215-xx

UEC 33x

To be designed by the machine
manufacturer

Gen 3 drives

Line filters

Braking resistor,
capacitor, andvoltage-protection
modules

1xx inverter systems,
without star point
ID 676759-xx

EPCOS 46 A

ID 1169716-xx

EPCOS 80 A

ID 640908-xx

EPCOS 83 A

ID 1169717-xx

EPCOS 120 A

ID 575292-xx

EPCOS 135 A

ID 1169718-xx

EPCOS 200 A

ID 735542-xx

EPCOS 202 A

ID 1169719-xx

1xx inverter systems

ID 667945-xx

UM 3101)

ID 1108101-xx

UM 111BD

ID 671968-xx

UM 3111)

ID 1108147-xx

UM 112D

ID 731984-xx

UM 312

ID 1108153-xx

UM 113D

ID 730435-xx

UM 313

ID 1108164-xx

UM 114D

ID 671288-xx

UM 314

ID 1108167-xx

UM 115D

ID 671566-xx

UM 315

ID 1129203-xx

UM 116D

ID 667954-xx

UM 316

ID 1123915-xx

UM 116DW

ID 667946-xx

UM 316W

ID 1237090-xx

UM 117DW

ID 689572-xx

UM 317W

ID 1237092-xx

ID 667838-xx

UM 3201)

ID 1073027-xx

CC 6106

UM 121BD

ID 667942-xx

UM 3211)

ID 1107902-xx

UM 122D

ID 667633-xx

UM 322

ID 1043586-xx

1) Connectors for motor and brake connections must be ordered separately, ID 1249132-xx

Comply with the specifications for the modular inverters when
migrating to the new inverter generation. The UM 3xx devices are
more powerful than the previous UM 1xx units. Depending on the
motor or drive system, it may be possible to use a smaller inverterwith the UM 3xx devices.

Controller units

Gen 3 drives,with star point S

EPCOS 35 A

UM 111D

UM 121D

14

Gen 3 drives

UVR 120D

1xx inverter systems

UVR 330

1xx inverter systems

Gen 3 drives

UP 110ID 341516-xx

UP 310

ID 1119332-xx

UP 120

ID 605731-xx

UP 320

ID 1119330-xx

SM 110

ID 368453-xx

SM 320

ID 1276063-xx

SM 130ID 540739-xx

SM 330

ID 1237089-xx

CMH 120

ID 59116-01

CMH 320

ID 1164215-xx

PW 210ID 333081-xx

PW 310

ID 1324061-xx

1xx inverter systems

Gen 3 drives-

CC 302

ID 1243183-xx

ID 662636-xx

CC 306

ID 1074384-xx

CC 6108

ID 662637-xx

CC 308

ID 1074385-xx

CC 6110

ID 662638-xx

CC 310

ID 1243647-xx

Please note that, in contrast to the CC 61xx controller units, only
half of the encoder inputs on a CC 3xx are designed for encoders
with 1 Vpp or EnDat interface.

15

Compact inverters

1xx inverter systems

Gen 3 drives

UEC 111

ID 1081002-xx

UEC 314

ID 1292240-xx

UEC 111 FS

ID 1075825-xx

UEC 314 FS

ID 1292241-xx

UEC 112

ID 1081003-xx

UEC 315

ID 1292235-xx

UEC 112 FS

ID 1075826-xx

UEC 315 FS

ID 1292237-xx

UEC 113

ID 828471-xx

UEC 31x + CC 302 +UM 3xx

To be designed by the machine
manufacturer

UEC 113 FS

ID 1038694-xx

UEC 31x (FS) +CC 302 + UM 3xx

To be designed by the machine
manufacturer

UMC 111 FS

ID 664231-xx

UMC 314 FS
UMC 315FS

ID 1296746-xx
ID 1296745-xx

UE 2xx

ID 733421-xx
ID 733423-xx,
ID 733424-xx,
ID 733425-xx,
ID 733426-xx,
ID 733427-xx,
ID 733428-xx

15 kW: UEC 31x (FS)22kW: UEC 32x (FS)To be designed by the machine
manufacturer

ID 741356-xx,
ID 741357-xx,
ID 741359-xx

22 kW: UEC 32x (FS)
+ RM 330

UR 2xxComply with the specifications for the compact inverters when
migrating to the new inverter generation. The UEC 3xx devices are
more powerful than the previous compact inverters.

16

Connecting
cables of thepower modules
and control
components

To be designed by the machine
manufacturer

Panel MCs

1xx inverter systems

Gen 3 drives

Ribbon cable for CC
supply voltage

ID 325816-xx

Not required

Ribbon cable for supplybus

ID 325816-xx

Not required

Ribbon cable for devicebus

ID 325817-xx

Not required

Ribbon cable for PWM
connection

ID 250479-xx

Optical fiber cable

Adapter module fortemperature sensor

ID 336377-xx,
ID 312533-xx

Can continue to be used at X40x of the CC 3xx

HSCI cable

ID 618893-xx

Gbit HSCI cable

Up to and including 35 m:
ID 1257765-xx
From 40 m to 70 m:
ID 1306923-xx

Monitor cableID 625901-xx

New HDL2 interface

ID 1161508-xx

PWM covers

ID 329031-xx,
ID 538427-xx,
ID 1102784-xx

Not required

MS 11x

ID 658132-xx,
ID 673685-xx

Connection kits forconvenient wiring

1xx inverter systems

ID 1265351-xx

ID 1274603-xx and
ID 1278910-03

Gen 3 drives

MC 74101039531-11

MC 7420

1066650-02

MC 84101175057-01

MC 7410T

1034791-01

MC 8420T

1213689-01

MC 75221071597-02

MC 85121243919-01

MC 75321124449-01, -02

MC 8532

1189190-01

MC 366

1246689-01

MC 8410MC 84201175057-xx
1318472-xx

MC 8420T

1213689-xx

MC 85121243919-xx

MC 8532

1189190-xx

MC 366
MC 366 (only for TNC7)

1246689-02
1246689-03

17

Monitors

PLB modules

1xx inverter systems – HDL

Gen 3 drives – HDL2

BF 750785080-01–

BF 760732589-01

BF 8601169174-01

1xx inverter systems

Gen 3 drives

TE 725T FS

1211940-01

TE 725T FS

TE 735771898-02–

1211940-02

BF 8601244875-xx

TE 735 FS

805493-02–

BF 3601275079-xx

TE 735T

823058-021034924-02–

1xx inverter systems

Gen 3 drives

TE 745679817-02
679817-12
1219757-01

TE 745679817-13

TE 745 FS

805482-02805482-121219759-01

TE 745 FS

805482-13–

TE 3601280184-xx
1284265-xx–

TE 360 FS

1275710-xx
1284263-xx

TE 3611313011-xx

TE 361 FS

1326583-xx

TE 745T

801306-04

MC 6541

1081185-02

MC 65421081188-03

MC 6641811550-02

1xx inverter systems

MC 3061180045-xx

Gen 3 drives

PLB 6204

ID 1129809-01

PLB 6204

ID 1129809-02

PLB 6206

ID 1129812-01

PLB 6206

ID 1129812-02

PLB 6208

ID 1129813-01

PLB 6208

ID 1129813-02

PLB 6204 FS

ID 1129808-01

PLB 6204 FS

ID 1223032-01

PLB 6206 FS

ID 1129811-01

PLB 6206 FS

ID 1223033-01

PLB 6208 FS

ID 1129810-01

PLB 6208 FS

ID 1223034-01

PLB 6210 FS

ID 1278134-xx

PLB 6104

ID 591828-xx

PLB 6104

ID 1129799-01

PLB 6106

ID 630058-xx

PLB 6106

ID 1129803-01

PLB 6108

ID 630059-xx

PLB 6108

ID 1129804-01

PLB 6104 FS

ID 590479-xx

PLB 6104 FS

ID 1129796-01

PLB 6106 FS

ID 804755-xx

PLB 6106 FS

ID 1129806-01

PLB 6108 FS

ID 804756-xx

PLB 6108 FS

ID 1129807-01

1xx inverter systems

18

Keyboard units

Gen 3 drives

MB 720784803-02

MB 720784803-03

MB 720 FS

805474-02

MB 720 FS

805474-03

MB 720T

1043707-02

MB 720T

1043707-03

MB 7211164974-01

MB 7211164974-02

MB 721 FS

1164975-01

MB 721 FS

1164975-02

TE 745T
Special identification of suitability
for use on Gen 3
drives801306-03

Special labels or stickers identify the suitability of control
components for use in systems with Gen 3 drives:• "Gen 3 ready" label:

Components bearing this label can be used in systems with Gen 3
drives (UVR 3xx, UM 3xx, CC 3xx) or in systems with a Gen 2
inverter system (UVR 1xx, UE 2xx, UR 2xx, CC 61xx).
Examples: MC 8410, MC 8512, MC 8532, MC 366, PLB 62xx,
TE 745, TE 745 FS• "Gen 3 exclusive" label:
Components bearing this label can be used only in systems withGen 3 drives (UVR 3xx, UM 3xx, CC 3xx). These components are
not supported in systems with a Gen 2 inverter system (UVR 1xx,
UE 2xx, UR 2xx, CC 61xx).
Examples: New PLB 62xx FS, PAE-H
You will find the labels or stickers in the brochures describing yourcontrol components as well as on the packaging of the control
components and on the components themselves.
The Gen 3 power modules, the CC 3xx controller unit, and the
Gen 3-specific accessories, which are already clearly identifiable as
belonging to Gen 3 based on their name and design, do not bearthese labels.

19

Power supply unit

For UM 3xx inverters and other accessories, the UVR 3xx
regenerative power supply unit produces the rectified DC-link
voltage and the +24 V supply voltage from the connected line
voltage. The DC-link voltage and the +24 V supply voltage aretransmitted to the inverters and other accessories (e.g., CMH, UP,
CC) via conductor bars. The CC 3xx controller unit controls theconnected inverters with PWM signals sent over HFL cables.
During braking, the motors connected to the inverters can feed
energy back into the DC link. The UVR 3xx feeds this energy backinto the power supply network if there is such a connection. The
power supply unit communicates with the control via the HSCI
connection.
The UVR 3xx power supply units differ in terms of theirpermissible DC-link power. Refer to the specifications of the
supply units.
The components required for operating the HEIDENHAIN power
supply unit include the following:• NC software with NCK version 597110-14 or higher• MC main computer• System PL PLB 62xx FS or PLB 62xx and PAE-H 08-00-01• CC 3xx controller unit
• UM 3xx or UMC 3xx modular inverters• KDR 3xx commutating reactor• Line filter for the UVR 3xx• Siemens SITOR gR or gS line fuse
• UP 3xx braking resistor module (if necessary)• Surge protector (if necessary)• SM 3xx voltage protection module (if necessary)• CMH 3xx capacitor module (if necessary)
The total simultaneously required power of all connected UM 3xx
inverters and motors must not exceed the power rating of theUVR 3xx power supply unit.

UVR 330

Power supply unit

UVR 330

UVR 340

Power supply (input side)

3AC 400 V (-10 %)3) to
3AC 480 V (+6 %)Rated frequency

50 / 60 Hz (50 Hz or 60 Hz)

Phase conductor current at rated power(input side at 3AC 400 V)

46 A

68 A

Connected load (input side)

32 kW

47 kW

DC-link voltage (output side)DC 650 V or DC 720 V

DC-link rated power

30 kW

45 kW

DC-link power during periodic S6-40 % duty1)

45 kW

65 kW

Maximum DC-link power 2)

60 kW

Minimum conductor cross section and line type forpower supply at X31 as per DIN VDE 0298-4(according to table NEC 310-16)

H07 V2-K single conductor: 10 mm(AWG 6),at least 80 °C, copper, at least
AC 480 V, routing type: B1, C, or E

H07 V2-K single conductor: 16 mm2(AWG 4),at least 80 °C, copper, at least
AC 480 V, routing type: B1, C, or E

Siemens SITOR gR or gS line fuse

50 A
3NE1817-0, gS or
3NE8017-1, gR

80 A
3NE1820-0, gS or
3NE1020-2, gR

Integrated power adapter with 24 V power supply

Max. 1 kW, 40 A

Cooling method

Integrated fans

Protection class

IP20

Power loss during rated operation PV

For information on the power loss values, please refer to the Technical Manual
for the Gen 3 drives.

NRTL approval

Yes

Yes

Module width

150 mm

200 mmMass

12.5 kg

18.5 kgID

1164511-xx

1168321-xx

90 kW
2

1) S6-40 %: at 4 minutes, 1.4-fold rated power; at 6 minutes, 0.4-fold rated power

2) Maximum power: at 4 seconds, 2-fold rated power; at 16 seconds, 0.4-fold rated power3) Derating: If you reduce the supply voltage of 3AC 400 V by 10 %, the permissible power output likewise decreases by 10 %.

20

21

Power supply unit

UVR 350

UVR 360
UVR 360WUVR 370
UVR 370W

Power supply (input side)

3AC 400 V (-10 %)3) to
3AC 480 V (+6 %)Rated frequency

50 / 60 Hz (50 Hz or 60 Hz)

Phase conductor current at rated power(input side at 3AC 400 V)

83 A

135 A

202 A

Connected load (input side)

58 kW

94 kW

140 kW

DC-link voltage (output side)DC 650 V or DC 720 V

DC-link rated power

55 kW

90 kW

135 kW

DC-link power during periodic S6-40 % duty1)

80 kW

130 kW

190 kW

Max. power of DC link
(4 s with 20 s cycle duration)2)

110 kW

180 kW

270 kW

Minimum conductor cross section and line type forpower supply at X31 as per DIN VDE 0298-4(according to table NEC 310-16)

H07 V2-K single
conductor: 25 mm2(AWG 3),at least 80 °C, copper, atleast AC 480 V, routing
type: B1, C, or E

H07 V2-K single
conductor: 50 mm2(AWG 1/0),
at least 80 °C, copper, atleast AC 480 V, routing
type: C or E

H07 V2-K single
conductor: 95 mm2(AWG 4/0),
at least 80 °C, copper, atleast AC 480 V, routing
type: C or E

Siemens SITOR gR or gS line fuse

100 A
3NE1021-0, gS or
3NE1021-2, gR

160 A
3NE1224-0, gS or
3NE1224-2, gR

250 A
3NE1227-0, gS or
3NE1227-2, gR

Integrated power adapter with 24 V power supply

Max. 1 kW, 40 A

Cooling method

Integrated fans

Protection class

IP20

Power loss during rated operation PV

For information on the power loss values, please refer to the Technical Manual
for the Gen 3 drives.

Load cycles of the
supply units

Load cycles of the UVR 3xx supply units and the integrated supply
units in the UEC 3xx (FS)P

Load cycle for DC link power during periodic S6-40% operation:

PMax

PS6
PN

4 min

0.4 PN
10 mint

PLoad cycle for DC link maximum power:

PMax

PS6
PN

UVR 360: integrated fans UVR 370: integrated fans
UVR 360W: water
UVR 370W: water

1.4 PN4s

0.4 PN
20 s

NRTL approval

Yes

Only with variant -03 or
higherOnly with variant -03 or
higherModule width

200 mm

250 mm

250 mm

Mass

19 kg

22 kg

22 kg

ID

1064350-xx

UVR 360:
1118870-xx
UVR 360W:
1237086-xx

UVR 370:1163158-xx
UVR 370W:
1237088-xxt1) S6-40 %: at 4 minutes, 1.4-fold rated power; at 6 minutes, 0.4-fold rated power

2) Maximum power: at 4 seconds, 2-fold rated power; at 16 seconds, 0.4-fold rated power3) Derating: If you reduce the supply voltage of 3AC 400 V by 10 %, the permissible power output likewise decreases by 10 %.

2223

Modular inverters

Accessories for the UVR 3xx power supply units
Power supply unit

UVR 330

UVR 340HSCI cable(mandatory)

Gbit HSCI cable

Gbit HSCI cable

Siemens SITOR gR or gS line fuse(mandatory)

50 A
3NE1817-0, gS or
3NE8017-1, gR

80 A
3NE1820-0, gS or
3NE1020-2, gR

Commutating reactor (mandatory)

KDR 330

KDR 340

Line filter(mandatory)

EPCOS 46AEPCOS 83A

Braking resistor (optional)

UP 310UP 310 or
UP 320Surge protector(optional)

VAL-MS 230/FM

VAL-MS 230/FM

Cooling method (device-specific)

Integrated fans

Bus mounting of DC link and 24 V supply
voltage (mandatory)

Included with the device

Inverter(mandatory)

UM 3xxPower supply unit

UVR 350

UVR 360
UVR 360WUVR 370
UVR 370W

HSCI cable(mandatory)

Gbit HSCI cable

Gbit HSCI cable

Gbit HSCI cable

Siemens SITOR gR or gS line fuse(mandatory)

100 A
3NE1021-0, gS or
3NE1021-2, gR

160 A
3NE1224-0, gS or
3NE1224-2, gR

250 A
3NE1227-0, gS or
3NE1227-2, gR

Commutating reactor (mandatory)

KDR 350

KDR 360

KDR 370

Line filter(mandatory)

EPCOS 83A

EPCOS 135AEPCOS 202A

Braking resistor (optional)

UP 310 or
UP 320UP 3202 x UP 320

Surge protector(optional)

VAL-MS 230/FM

VAL-MS 230/FM

FLT-SEC-T1+T2-3C-350/25-FM

Cooling method (device-specific)

Integrated fans

UVR 360:
integrated fans
UVR 360W:
coolant hose

UVR 370:
integrated fans
UVR 370W:
coolant hose

Bus mounting of DC link and 24 V supply
voltage (mandatory)

Included with the device

Inverter(mandatory)

UM 3xx24

An inverter is a power module (DC-AC inverter) that provides theenergy for the connected motor or motors. For UM 3xx modular
inverters, the UVR 3xx power supply unit generates the rectified
DC-link supply voltage. The DC-link voltage is transmitted tothe inverters via conductor bars, and the +24 V supply voltage
is transmitted to the inverters via jumper plugs. The CC 3xx
controller unit controls the connected modular inverters by meansof PWM signals over HFL cables.
The UM 3xx inverters differ in the number of axes they support
and the maximum currents they permit. The UM 31x inverter canbe used to operate no more than one motor, and the UM 32x
inverter can be used to operate up to two motors.
The components required for operating the modular HEIDENHAIN
inverters include the following:• MC main computer• PLB 62xx FS or PLB 62xx system PL and PAE-H 08-00-01 or
UEC 3xx with integrated system PL• CC 3xx controller unit
• UVR 3xx or UEC 3xx power supply unit
• KDR 3xx commutating reactor• Line filter for the UVR 3xx• UP 3xx braking resistor module (if necessary)• Surge protector (if necessary)• SM 3xx voltage protection module (if necessary)• Further HEIDENHAIN UM 3xx modular inverters (if necessary)• CMH 3xx capacitor module (if necessary)UM 314The UM 3xx inverters can be combined as desired, but the totalrequired power of all connected UM 3xx inverters or motors must
not exceed the power rating of the UVR 3xx power supply unit.

25

Modular inverter

UM 310UM 311

Power supply

DC-link: DC 509 V to DC 720 V

Rated current (DC 650 V, PWM frequency of 5 kHz,at rotational frequencies > 10 Hz)1)

12 A

21 A

UM 31235 A

Modular inverter

UM 313

UM 314

Power supply

DC-link: DC 509 V to DC 720 V

Rated current (DC 650 V, PWM frequency of 5 kHz,at rotational frequencies > 10 Hz)1)

60 A

90 A

UM 315130 A

Conductor cross section for the X8x and X38x motor The required conductor cross section depends on the rated current of theconnections
inverter and the connected motor, as well as on the operating mode, the typeof cable, and its manner of routing. It must be determined and protected by themachine manufacturer.
The values indicated below are for operating mode 1 and a motor cable with anoperating temperature of at least 80 °C.
The machine manufacturer must determine the cross sections for otheroperating modes.

Conductor cross section for the X8x and X38x motor The required conductor cross section depends on the rated current of theconnections
inverter and the connected motor, as well as on the operating mode, the typeof cable, and its manner of routing. It must be determined and protected by themachine manufacturer.
The values indicated below are for operating mode 1 and a motor cable with anoperating temperature of at least 80 °C.
The machine manufacturer must determine the cross sections for otheroperating modes.

Minimum conductor cross section for motor
connections X8x, X38x at PWM frequency≥ 3.33 kHz, as per DIN VDE 0298-4(according to table NEC 310-16)

Min. 1.5 mm2(AWG 14)

Min. 4 mm2(AWG 12)

Min. 6 mm2(AWG 8)Minimum conductor cross section for motor
connections X8x, X38x at PWM frequency≥ 3.33 kHz, as per DIN VDE 0298-4(according to table NEC 310-16)

Min. 16 mm2(AWG 4)

Min. 35 mm2(AWG 2)

Min. 70 mm2(AWG 2/0)

Minimum conductor cross section for motor
connections X8x, X38x at PWM frequency ≥ 5 kHz,as per DIN VDE 0298-4(according to table NEC 310-16)

Min. 1.5 mm2(AWG 14)

Min. 2.5 mm2(AWG 12)

Min. 6 mm2(AWG 8)Minimum conductor cross section for motor
connections X8x, X38x at PWM frequency ≥ 5 kHz,as per DIN VDE 0298-4(according to NEC 310-16)

Min. 16 mm2(AWG 6)

Min. 25 mm2(AWG 2)

Min. 50 mm2(AWG 1)

Conductor type, type of routing for the specified
minimum conductor cross section

Shielded cable, copper, 600/1000 V, resistant to oil and lubricants, routing type:C

Conductor type, type of routing for the specified
minimum conductor cross section

Shielded cable, copper, 600/1000 V, resistant to oil and lubricants, routing type:C

Current consumption at 24 V via bus mounting,without current for brake control:
Maximum value (fans at max. speed) and value
during standby (fans off)Max. 0.7 A
Standby 0.3 A

Current consumption at 24 V via bus mounting,without current for brake control
Maximum value (fans at max. speed) and value
during standby (fans off)Max. 1.3 A
Standby 0.3 A

Power loss during rated operation PV

For information on the power loss values, please refer to the Technical Manual
for the Gen 3 drives.

Power loss during rated operation PV

For information on the power loss values, please refer to the Technical Manual
for the Gen 3 drives.

Cooling method

Integrated fans with temperature control

Cooling method

Integrated fans with temperature control

Max. output current per braking connection(+24 V, HSLS)

2.5 A

Max. output current per braking connection(+24 V, HSLS)

2.5 A

Protection class

IP20

Protection class

IP20

Maximum permissible PWM frequency

16 kHzMaximum permissible PWM frequency

16 kHz

NRTL approval

Yes

Yes

Yes

NRTL approval

Yes

Yes

Yes

Module width

50 mm

50 mm

100 mmModule width

100 mm

100 mm

150 mm

Mass

5 kg

5 kg

7.5 kgMass

9.5 kg

10 kg

17 kg

ID

1108101-xx

1108147-xx

1108153-xx

ID

1108164-xx

1108167-xx

1129203-xx

Max. 0.7 A
Standby 0.3 A

1) Derating at rotating field frequencies < 10 Hz: see Derating of the output currents

26

Max. 1.3 A
Standby 0.3 A

Max. 1.3 A
Standby 0.3 A

Max. 2.1 A
Standby 0.3 A

1) Derating at rotating field frequencies < 10 Hz: see Derating of the output currents27Modular inverter

UM 316
UM 316W

UM 317
UM 317W

Power supply

DC-link: DC 509 V to DC 720 V

Rated current (DC 650 V, PWM frequency of 5 kHz,at rotational frequencies > 10 Hz)1)

230 A

320 A

Conductor cross section for the X8x and X38x motor The required conductor cross section depends on the rated current of theconnections
inverter and the connected motor, as well as on the operating mode, the typeof cable, and its manner of routing. It must be determined and protected by themachine manufacturer.
The values indicated below are for operating mode 1 and a motor cable with anoperating temperature of at least 80 °C.
The machine manufacturer must determine the cross sections for otheroperating modes.

Modular inverter

UM 320UM 321

Power supply

DC-link: DC 509 V to DC 720 V

Rated current per drive (DC 650 V, PWM frequencyof 5 kHz, at rotational frequencies > 10 Hz)1)

12 A

21 A

UM 32235 A

Conductor cross section for the X8x and X38x motor The required conductor cross section depends on the rated current of theconnections
inverter and the connected motor, as well as on the operating mode, the typeof cable, and its manner of routing. It must be determined and protected by themachine manufacturer.
The values indicated below are for operating mode 1 and a motor cable with anoperating temperature of at least 80 °C.
The machine manufacturer must determine the cross sections for otheroperating modes.

Min. 2 x 70 mm(2 x AWG 4/0)

Minimum conductor cross section for motor
connections X8x, X38x at PWM frequency≥ 3.33 kHz, as per DIN VDE 0298-4(according to table NEC 310-16)

Min. 1.5 mm2(AWG 14)

Min. 4 mm2(AWG 12)

Min. 10 mm2(AWG 8)Min. 2 x 70 mm2(2 x AWG 3/0)

Minimum conductor cross section for motor
connections X8x, X38x at PWM frequency ≥ 5 kHz,as per DIN VDE 0298-4(according to table NEC 310-16)

Min. 1.5 mm2(AWG 14)

Min. 2.5 mm2(AWG 12)

Min. 6 mm2(AWG 8)

Shielded cable, copper, oil and lubricant-resistant, 600/1000 V, routing type: C

Conductor type, type of routing for the specified
minimum conductor cross section

Shielded cable, copper, 600/1000 V, resistant to oil and lubricants, routing type:C

Current consumption at 24 V via bus mounting,without current for brake control
Maximum value (fans at max. speed) and value
during standby (fans off)

UM 316 max. 3.9 A
UM 316W max. 0.7 A
Standby 1.3 A

Current consumption at 24 V via bus mounting,without current for brake control
Maximum value (fans at max. speed) and value
during standby (fans off)Max. 1.3 A
Standby 0.4 A

Power loss during rated operation PV

For information on the power loss values, please refer to the Technical Manual
for the Gen 3 drives.

Power loss during rated operation PV

For information on the power loss values, please refer to the Technical Manual
for the Gen 3 drives.

Cooling method

Integrated fans with temperature control

Cooling method

UM 316:integrated fans with temperature
control
UM 316W:
water

Max. output current per braking connection(+24 V, HSLS)

2.5 A

Protection class

IP20

Maximum permissible PWM frequency

10 kHz

NRTL approval

Yes

Yes

Yes

50 mm

100 mmMinimum conductor cross section for motor
connections X8x, X38x at PWM frequency≥ 3.33 kHz, as per DIN VDE 0298-4(according to table NEC 310-16)2Min. 120 mm
or 2 x 50 mm2(300 kcmil or
2 x AWG 2/0)

Minimum conductor cross section for motor
connections X8x, X38x at PWM frequency ≥ 5 kHz,as per DIN VDE 0298-4(according to table NEC 310-16)

Min. 95 mm2
or 2 x 50 mm2(250 kcmil or
2 x AWG 2/0)

Conductor type, type of routing for the specified
minimum conductor cross section

2

UM 317 max. 3.9 A
UM 317 standby 1.4 A
UM 317W max. 1.0 A
UM 317W standby 1.0 A

UM 317:integrated fans with temperature
control
UM 317W:
water

Max. 1.3 A
Standby 0.4 A

Max. 1.7 A
Standby 0.4 A

Max. output current per braking connection(+24 V, HSLS)

2.5 A

Protection class

IP20

Module width

50 mm

Maximum permissible PWM frequency

16 kHzCooling method

Fans

NRTL approval

Yes

Yes

Mass

6 kg

6 kg

10 kg

Module width

200 mm

200 mm

ID

1073027-xx

1107902-xx

1043586-xx

Mass

UM 316: 25 kg
UM 316W: 17 kg

UM 317: 27 kg
UM 317W: 19 kg

ID

UM 316:1123915-xx
UM 316W:
1237090-xx

UM 317:1145290-xx
UM 317W:
1237092-xx

1) Derating at rotating field frequencies < 10 Hz or DC-link voltage = DC 720 V: see Derating of the output currents

1) Derating at rotating field frequencies < 10 Hz: see Derating of the output currents28

29Output currents

Output currents of the UM 3xx modular inverters based on the
PWM frequency at a DC-link voltage of DC 650 V:

Output currents of the UM 3xx modular inverters based on the
PWM frequency at a DC-link voltage of DC 650 V:

Currents

PWM
frequency

UM 310,UM 320UM 311,
UM 321

UM 312,
UM 322

UM 313Currents

PWM
frequency

UM 314

UM 315

UM 316
UM 316W

UM 317
UM 317W

Rated current IN, BM 1
Current 0.7 · IN, BM 2
Current S6-40 %, BM 3
Maximum current IMaxAC, BM 4, 5

3.3 kHz

14 A
9.5 A
20 A
28 A

24.5 A
17 A
35 A
49 A

40 A
28 A
57 A
80 A

70 A
49 A
99 A
140 A

Rated current IN, BM 1
Current 0.7 · IN, BM 2
Current S6-40 %, BM 3
Maximum current IMaxAC, BM 4, 5

3.3 kHz

99 A
69.5 A
140 A
198 A

142 A
99.5 A
200 A
284 A

265 A
185.5 A
295 A
375 A

350 A
245 A
400 A
500 A

4.0 kHz

13 A
9A
18 A
26 A

23 A
16 A
32.5 A
46 A

38 A
26.5 A
53.5 A
76 A

66 A
46 A
93 A
132 A

4.0 kHz

95 A
66.5 A
134 A
190 A

137 A
96 A
193 A
274 A

251 A
175.5 A
281 A
354 A

338 A
236.5 A
384 A
477 A

5.0 kHz

12 A
8.5 A
17 A
24 A

21 A
14.5 A
30 A
42 A

35 A
24.5
50 A
70 A

60 A
42 A
85 A
120 A

5.0 kHz

90 A
63 A
127 A
180 A

130 A
91 A
184 A
260 A

230 A
161 A
260 A
325 A

320 A
224 A
360 A
455 A

6.6 kHz

11 A
7.5 A
15.5 A
22 A

19 A
13.5 A
27 A
38 A

31.5 A
22 A
44.5 A
63 A

54 A
37.5 A
76 A
108 A

6.6 kHz

80 A
56 A
113 A
160 A

117 A
82 A
165 A
234 A

205 A
143.5 A
233 A
289 A

287 A
201 A
323 A
405 A

8.0 kHz

10 A
7A
14 A
20 A

17.5 A
12 A
24.5 A
35 A

28.5 A
20 A
40 A
57 A

49 A
34.5 A69 A
98 A

8.0 kHz

72 A
50.5 A
102 A
144 A

106 A
74 A
150 A
212 A

186 A
130 A
212 A
262 A

260 A
182 A
294 A
367 A

10 kHz

8.5 A
6A
12 A
17 A

15 A
10.5 A
21 A
30 A

24 A
17 A
34 A
48 A

42 A
29.5 A
60 A
84 A

10 kHz

60 A
42 A
85 A
120 A

90 A
63 A
127 A
180 A

156 A
109 A
180 A
220 A

220 A
154 A
250 A
310 A

13.3 kHz1)

7A
5A
10 A
14 A

12 A
8.5 A
17 A
24 A

19.5 A
13.5 A
27.5 A
39 A

35 A
24.5 A
49 A
70 A

13.3 kHz49.5 A34.5 A
70 A
99 A

74.5 A
52 A
105 A
149 A

130 A
91 A
150 A
183 A

181 A
126.5 A
206 A
255 A

16.0 kHz1)

6A
4A
8.5 A
12 A

10 A
7A
14 A
20 A

16 A
11 A
23 A
32 A

29 A
20.5 A
41 A
58 A

16.0 kHz

41 A
28.5 A
58 A
82 A

62 A
43.5 A
88 A
124 A

110 A
77 A
125 A
156 A

150 A
105 A
170 A
212 A

1) Not for UM 32x

For UM 32x modular inverters for two drives, the following
applies:
The stated output current is the current for each drive. In cyclic
operation (S6-40 %), however, only one of the two drives may be
operated.

For a description of the BM x operating modes or load cycles,
please refer to Page 35.
PWM frequencies > 5 kHz require software option 49.

For a description of the BM x operating modes or load cycles,
please refer to Page 35.
PWM frequencies > 5 kHz require software option 49.

30

31

Planning and selection of the inverter

The selection of the inverter depends on the currents requiredby the connected motor. In many cases, the inverter is selectedbased on the stall current of the motor being used. For selectionof the inverter, HEIDENHAIN recommends the following:
For a feed axis without a weight load or without a high load fromprocess forces, or for a spindle:• Rated current of the inverter (rotating field frequency > 10 Hz or
BM 1 operating mode) ≥ motor stall current
For feed axes with a weight load or with a high load from process
forces, make sure to consider the derating of the inverter output
current mentioned below:• Rated derating current (current at a rotating field
frequency < 10 Hz or operating mode BM 2) ≥ Motor stall current
where: Rated derating current (BM 2) = Rated current of theinverter (rotating field frequency > 10 Hz) · 0.7
Derating based on the rotating field frequency of the motor:
At rotating field frequencies of < 10 Hz (electrical frequency), thefollowing derating must be considered for the limit values of theoutput currents:
Current value from the specification tables (BM 1) · 0.7 = Current
at rotating field frequencies of < 10 Hz or BM 2 operating mode

General information

For UMS 3xx modular sine-wave drives, the UVR 3xx power
supply unit generates the rectified DC-link supply voltage. The DClink voltage is transmitted to the inverters via conductor bars, andthe +24 V supply voltage is transmitted to the inverters via jumper
plugs. The CC 3xx controller unit controls the connected modular(sine-wave) inverters by means of PWM signals over HFL cables.
The UMS 3xx sine-wave drive is compatible with the UVR 3xx
and UEC 3xx(FS) power supply units. In contrast to the UM 3xx
inverters, the sine-wave drives provide a nearly sinusoidal output
voltage or a sinusoidal current at the output terminals. Thissignificantly reduces the current harmonics occurring at the motor,
which is particularly advantageous for high speed spindles:• Higher speeds especially for HF spindles (speeds up to
180,000 rpm, rotating field frequencies up to 3 kHz)• Lower voltage load for motor winding with long cable lengths• Avoidance of static charges in the spindle rotor (spark erosion)• Compact solution compared to external solutions (all-in-one

In addition, a further derating must be taken into account for the
maximum current at standstill. The following applies: IMaxDC =1.4 · INAC. The image below illustrates this relationship:

The components required for operating the modular HEIDENHAIN
sine-wave drives in an inverter network include the following:• NC software with NCK version 597110-16 or higher• MC main computer• System PL PLB 62xx FS or PLB 62xx and PAE-H 08-00-01 or
UEC 3xx with integrated system PL• CC 3xx controller unit
• UVR 3xx power supply unit or UEC 3xx (FS) and the associatednecessary accessories• UP 3xx braking resistor module (if necessary)• Surge protector (if necessary)• Voltage protection module SM 3xx as needed (for the need ofa voltage protection module, the same conditions apply to the
UMS as to a UM 3xx)
• Further HEIDENHAIN UM 3xx modular inverters (if necessary)• CMH 3xx capacitor module (if necessary)

IMaxAC
IMaxf
IMaxDC = 1.4 INAC

0.7 INf

10 Hz

Frequency

Derating based on the DC-link voltage:
At a DC-link voltage that is constantly greater than DC 650 V(e.g., DC 680 V or DC 720 V; for example, with connection to agrid with 3AC 480 V), a 10% derating of the rated currents must
be taken into account.

UMS 312instead of required external filters)

A UMS 312 sine-wave drive can be used to operate no more than
one motor.

0 Hz

32

A sine-wave drive is a power module (DC-AC inverter) thatprovides the energy for the connected motor or motors as asinusoidal output voltage.

Example:Rated current of the UM 314 (5 kHz, rotating field frequency> 10 Hz) = 90 A (BM 1)
Rated current of the UM 314 (5 kHz, rotating field frequency =0 Hz) = 90 A · 0.7 = 63 A (BM 2)

Effective value of phase current Imax

Derating of theoutput currents

UMS 3xx

Please note that shielded motor power cables may be used only
to connect the UMS 312.

The UM 3xx and UMS 3xx inverters can be combined as desired,
but the total required power of all connected UM 3xx and
UMS 3xx inverters or motors must not exceed the power ratingof the UVR 3xx power supply unit or the UEC 3xx (FS) compact
inverter.

33

Power supply

DC-link DC 509 to DC 720V

Rated current, BM 1 (DC 650 V, forrotational frequencies > 10 Hz)1)40 A

Current 0.7 · IN, BM 2

28 A

Current S6-40 %, BM 3

50 A

Maximum current in BM 4, BM 5
(DC 650 V, for rotational frequencies> 10 Hz)

60 A

Conductor cross section for X8x motor
connections

The required conductor cross section depends on the rated
current of the inverter and the connected motor, as well as on theoperating mode, the type of cable, and its manner of routing. It
must be determined and protected by the machine manufacturer,
if necessary.
The values indicated below are for operating mode 1 and a motor
cable with an operating temperature of at least 80 °C.
The machine manufacturer must determine the cross sections forother operating modes.

Minimum conductor cross section
for motor connections X8x as per
DIN VDE 0298-4(according to Table NEC 310-16)

Min. 6 mm2(AWG 8)

Conductor type, type of routing for the
Shielded cable, copper, 600/1000 V, resistant to oil and lubricants,
specified minimum conductor cross section routing type: C
Current consumption at 24 V via bus
Max. 2.0 A
mounting, without current for brake control: Standby 1.0 A
Maximum value (fans at max. speed) andvalue during standby (fans off)
Cooling method

Integrated, temperature-controlled fans

Max. output current per braking connection 2.5 A(+24 V, HSLS)
Protection class

IP20

Permissible PWM frequencies for thecontrol loop

5 kHz, 10 kHz or 16 kHz

Maximum possible rotating field frequency

3 kHz

NRTL approval

Yes

Module width

100 mm

Mass

11 kg

ID

1296558-xx

1) Derating at rotational frequencies < 10 Hz or DC-link voltage = DC 720 V: see Derating of the output currents

Effective value of phase current 

UMS 312

BM 1 operating mode, rated current at rotating field frequencies> 10 Hz (electrical frequency):

IMaxAC = 2 IN

Rotating field frequency > 10 Hz

IS6-40 %IN
0.7 INTime 

BM 2 operating mode, rated current at rotating field frequencies> 10 Hz (electrical frequency):
Effective value of phase current 

Modular inverter

Load cycles
or operating
modes of the
motor outputs
on UM 3xx,
UEC 3xx (FS),
UMC 3xx (FS)IMaxAC = 2 IN

Rotating field frequency < 10 Hz

IS6-40 %IN
0.7 INTime 

BM 3 operating mode, current at S6-40% at rotating field
frequencies > 10 Hz (electrical frequency):
Effective value of phase current Specifications

IMaxAC = 2 IN

Rotating field frequency > 10 Hz

IS6-40 %IN
0.7 IN4 min
10 minTimet The BM3 operating mode is not supported on the UMC 3xx(FS)!

34

35

Controller unit

Effective value of phase currentBM 4 operating mode, maximum current at rotating field
frequencies > 10 Hz (electrical frequency) IMax or IMaxAC:
Rotating field frequency > 10 Hz
IMaxAC = 2 IN

IS6-40 %IN
0.7 IN

10 s
60 s
Time

Effective value of phase current BM 5 operating mode, maximum current at rotating field
frequencies > 10 Hz (electrical frequency) and rated current
between the pulses IMax or IMaxAC:
Rotating field frequency > 10 Hz
IMaxAC = 2 IN

Due to the very short cycle times of their integrated position,
speed, and current feedback control, controller units from
HEIDENHAIN are equally suitable for conventional motors, directdrive motors (linear motors, torque motors), and HSC spindles.
They allow for high control-loop gain and short reaction times
to changing machining forces, thereby enabling high contour
fidelity and workpiece surface quality. The CC 3xx controller unit
is connected to the other control components over HSCI, and it
controls the connected modular inverters with PWM signals over
HFL cables.
The CC 3xx controller units differ in terms of the number ofpossible control loops and thus also by the number of connectableencoders. The CC 3xx does not differentiate between a positionor speed encoder at the encoder inputs. The type of connectedencoder is determined solely based on the configuration of thecontroller unit by the machine manufacturer. Half of the encoder
inputs of a CC 3xx provide the option of connecting encoders
with the 1 VPP interface or any EnDat interface, while the otherhalf (Mini IO connectors) enables the connection of purely serial
encoders with EnDat 2.2.

CC 308The number of usable control loops depends on the controller
unit itself and on the enabled control loops on the SIK. Additional
control loops can be ordered at a later time as needed by meansof a software option. Refer to the brochure or the Technical Manualof your control.

IS6-40 %IN
0.7 IN

0.25 s10 s

Time 

Effective value of phase currentBM 6 operating mode, maximum current at rotating field
frequencies < 10 Hz (electrical frequency) IMaxDC or IMaxf < 10Hz:
Rotating field frequency < 10 Hz
IMaxAC

IMaxDCIN
0.7 IN

0.1 s
1s
Time

36

37

CC 308

CC 310EIB 5000
sensor box

The EIB 5000 sensor box from HEIDENHAIN is recommended
for measuring the temperature of direct drive motors. Various
versions of the sensor box are available:

Max. 6(single-speed)

Max. 8(single-speed)

Max. 10(single-speed)

EIB 5181

2 x 1 VPP, EnDat
2 x EnDat 2.2

6 x 1 VPP, EnDat
6 x EnDat 2.2

8 x 1 VPP, EnDat
8 x EnDat 2.2

10 x 1 VPP, EnDat
10 x EnDat 2.2

HFL cable connections

2

6

8

10

SPI expansion slots

2

2

2

2

Analog drives via SPI modules CMA-H

Max. 2Max. 4Max. 4Max. 424 V current consumption via bus
mounting1)

0.6 A

0.8 A

1.3 A

1.4 A

External interface box for use in applications with torque or linear
motors:• Processing of information from up to three temperature sensors
and calculation of compensation for the transmission timing
behavior of the temperature measurement• Parameterization of the input/output characteristics via the
DIP switches provided on the device• Design: modular, electrical cabinet• Data interface: 1 Vpp, EnDat 2.1, or EnDat 2.2 (depending on
the connected encoder)

Cooling method

Integrated fans

Protection class

IP20

Power loss during rated operation1)

13 W

18 W

30 W

33 W

NRTL approval

Yes

Yes

Yes

Yes

Module width

50 mm

75 mm

100 mm

125 mmMass

3.2 kg3.75 kg

4 kg

4.25 kg

ID

1243183-xx

1074384-xx

1074385-xx

1243647-xx

Controller unit

CC 302CC 306

Power supply+24 V via 24 V supply bar at X76

Digital control loops

Max. 2(single-speed)

Encoder inputs

ID 1231387-xx
EIB 5281

An appropriate variant of the EIB 5281 may be needed dependingon the direct drive motor. Before delivery, the variant is
programmed for a particular combination of the following factors:

1) Current consumption without connected encoders or other devices• Configuration of the temperature sensors• Time constant for temperature measurement: a specificcompensation value for the transmission timing behavior of thetemperature measurement

Cycle times
At fPWM

Current controller

Speed controller

Position controller

Single-speed

Double-speed

3333 Hz150 µs300 µs150 µs4000 Hz125 µs250 µs125 µs5000 Hz100 µs200 µs100 µs6666 Hz75 µs-

150 µs8000 Hz62.5 µs-

125 µs

10 000 Hz

50 µs

-

100 µs13 333 Hz

37.5 µs-

75 µs

16 000 Hz

31.25 µs-62.5 µs

Same as for speed
controller

Single-speed, double-speed
Single-speed control loops are usually sufficient for linear and torque motors, and for conventional axes. Double-speed control loops(option 49) are preferable for HSC spindles and difficult-to-control axes. In the default setting, all axes are set to single-speed. Every axis
that is switched from single-speed to double-speed can reduce the number of available control loops. PWM frequencies greater than
5 kHz require double-speed control loops. This requires option 49 to be enabled. Please refer to the Technical Manual of the Gen 3 drives.

38

Close-to-application temperature measurement of a direct drive
motor:• Input: Encoder with EnDat 2.1 interface andthree temperature sensors• Output: EnDat 2.1 interface, particularly for connection to a
HEIDENHAIN TNC

ID 1281777-xx
Adapterconnector for
temperature
sensorFor applications with purely serial EnDat 2.2 encoders, the adapter
connector offers the option of interposing an external KTY or
PT 1000 temperature sensor (e.g., of linear and torque motors)
and route it to the speed encoder input of the controller unit.
The adapter connector can also be used in conjunction withencoders with EnDat02 or 1 VPP interface. The adapter connector
is plugged directly onto the speed encoder input (X15 to X20) of
the controller unit.
KTY adapter connector ID 367770-xx
Mass≈ 0.1 kg
Additional cables are required for the use of multiple adapter
connectors on one controller unit because the connector for an
external KTY or PT 1000 temperature sensor does not permit themounting of multiple adapter connectors in a row on the CC 61xx.

Encoders with EnDat interface(EnDat2.1, EnDat2.2)

Encoders with 1 VPP interface

1 m cable

ID 336377-01

ID 312533-01

3 m cable

ID 336377-03

ID 312533-03

39

Accessories for modular inverter systems

KDR 3xx commutating reactor

Accessories for UM 3xx modular inverters
Modular inverter

UM 3x0,UM 3x1

UM 3x2,
UM 313,
UM 314,
UM 315,
UM 316,
UMS 312

HFL cable(mandatory)

One piece for connection to the controller unit

Cooling method (device-specific)

Fans integrated in device

Bus mounting of DC link and 24 V supply
voltage (mandatory)

Included with the device

Connectors for motor/brake connection(mandatory)

Connectors for X38x (mustbe ordered separately):

Shield plate for shield connection (optional)

UM 316W,
UM 317W

Regenerative power supply units require a KDR commutating
reactor, which suppresses system perturbations and serves as anenergy buffer for the step-up converter. It is connected between
the line filter and the power supply unit.
The size of the commutating reactor depends on the power supply
unit used.

Water cooling via coolant
hose (must be orderedseparately)
KDR 350

Included with the device

Commutating reactor

KDR 330

KDR 340

KDR 350

Rated voltage

3AC 400 V (-10 %)1) to
3AC 480 V (+6 %)Rated frequency

50 / 60 Hz

Rated current at
3AC 400 V to3AC 480 V(effective value)

46 A to
39 A

68 A to
57 A

83 A to70 A

Maximum current(peak value)

125 A

187 A

227 A

Inductance of a winding

600 μH ±15 %470 μH ±15 %Protection

IPXXB

With variant -02 or higher: IPXXB
Variant -01: IP00

Power loss during rated
operation PV

For information on the power loss values, please refer to the Technical Manual for the Gen 3 drives.

NRTL approval

Yes

Yes

Yes

Mass

7 kg

11.5 kg

13 kg

Used forUVR 330

UVR 340

UVR 350

ID

1164204-xx

1164205-xx

1164206-xx

Depends on the inverter type, must be ordered separately

Power cables for connecting motors(mandatory)

For information on HEIDENHAIN power cables for motors, please refer to the brochure orto the Technical Manual for the motors.

Voltage protection module (optional)

SM 320 for UM 3x0 to UM 315
SM 330 for UM 316, UM 316W and UM 317W

Power supply unit
(mandatory)UVR 3xx, UEC 3xx (FS)1) Derating: If you reduce the supply voltage of 400 V by 10 %, the permissible power output likewise decreases by 10 %.

40

41

UP 3x0
braking resistor
moduleCommutating reactor

KDR 360

KDR 370

Rated voltage

3AC 400 V (-10 %)1) to
3AC 480 V (+6 %)Rated frequency

50 / 60 Hz

Rated current at
3AC 400 V to3AC 480 V(effective value)

135 A to
113 A

202 A to169 A

Maximum current (peak value)

371 A

555 A

Inductance of a winding

380 μH ±15 %260 μH ±15 %Protection rating

Variant -02 or higher: IPXXB
Variant -01: IP00

Power loss during rated operation PV

For information on the power loss values, please refer to the Technical Manual
for the Gen 3 drives.

NRTL approval

Yes

Yes

Mass

24 kg

30 kg

Used forUVR 360(W)UVR 370(W)ID

1164276-xx

1164277-xx

To prevent a power failure from damaging the machine andworkpiece as a result of axes coasting to a stop, the regenerated
energy or DC-link voltage should be dissipated with the UP 310 or
UP 320 braking resistor module.
In certain cases, a brake integrated into the motor may besufficient, or coasting to a stop can be considered noncritical (e.g.,a spindle coasting to a stop while the guard doors are closed).
However, the machine manufacturer must decide on this matterfor each use case.

UP 310The UP 320 is available for powerful, regenerative inverter
systems. The peak power can additionally be doubled byconnecting two UP 320 units in parallel.
The machine manufacturer is responsible for selecting a suitable
UP 3xx depending on the peak power that will be present when
the drives are braked in the event of a power failure.

1) Derating: If you reduce the supply voltage of 400 V by 10 %, the permissible power output likewise decreases by 10 %.

Line filter

In regenerative inverter systems, the braking energy of the motors
is normally fed back into the power supply network. If, in rarecases, the power supply network is interrupted, then the braking
energy can no longer be returned. When the motors are braked,
the regenerated energy leads to an excessive increase in DC-link
voltage. If a maximum DC-link voltage of 800 V is reached, thesupply unit switches off all of the connected inverters by means of
the DRIVE OFF signal (de-energized). On motors without a brake,
this can lead to uncontrolled coasting behavior.

If regenerative supply units are used, then a line filter is requiredin addition to the commutating reactor. Line filters suppress linebound interference and ensure EMC-compatible energy recovery
for the HEIDENHAIN inverter system. An S star point for theconnection of a UVR 3x0 is provided on the load side by means ofintegrated capacitors. The line filter must be connected between
the grid connection and the commutating reactor.
The line filter must be selected based on the supply unit being
used.

Braking resistor module

UP 310UP 320Switching voltage (on)DC 790 V (DC-link voltage)

Switching voltage (off)DC 757 V (DC-link voltage)

Peak power(for max. two seconds)

75 kW

150 kW
300 kW, if two UP 320 are connectedin parallel

Resistance

7.2 Ω

3.6 Ω

Protection classIP20

NRTL approval

Yes

Yes

Module width

50 mm

50 mm

Mass

6.5 kg

7 kg

ID1119332-xx

1119330-xx

EPCOS 83 A

Line filter

EPCOS 46A

Protection class

IP20

Power loss during rated
operation PV

For information on the power loss values, please refer to the Technical Manual for the Gen 3 drives.

UL certification

Yes

Yes

Yes

Yes

Mass

4 kg

7 kg

9 kg

19 kg

Used forUVR 330

UVR 340,
UVR 350

UVR 360

UVR 370ID

1169716-xx

1169717-xx

1169718-xx

1169719-xx

42

EPCOS 83A

EPCOS 135AEPCOS 202A

43

Accessories
for coolant
connection

For the use of high-power axis motors or spindle motors,
HEIDENHAIN also offers water-cooled power modules: theUVR 360W, UVR 370W, UM 316W, and UM 317W. Despite
their high power rating, they are compact and emit only a small
amount of heat into the electrical cabinet. The water-cooled
components must be connected separately to a closed coolant
loop via a distributor. As a suitable accessory, use pressure-tested
HEIDENHAIN water hoses.

Hose (kit)Accessories for power modules with water cooling: UVR 360W,UVR 370W, UM 316W, and UM 317W
Coolant hose: One kit contains the following (two kits required per
power module):• One pressure hose, length: 3 m• One coupling joint for connection to the distributor block:M18 x 1.5
One coolant hose kit

44

CEM 330 filter
moduleThe CEM 330 filter module has been approved for use only inmodular systems of Gen 3 drives.
The CEM is used to increase the maximum permissible overallline length of all power cables connected to the inverters. Without
the use of a CEM 330, the maximum possible overall line length
depends on the line filter being used.
For planning and configuration of the CEM 330, please refer to theTechnical Manual of the Gen 3 drives.
The CEM 330 filter module is mounted in an existing inverter row
and the DC-link voltage is routed through the module. Thanks to
the CEM, the permissible motor line length for inverters that arearranged downstream of the CEM is increased. The CEM 330 isplaced between the UM 3xx and the UVR 3xx whose interference
is to be suppressed, next to the UVR 3xx. A CEM 330 can beplaced each to the left and to the right of the UVR 3xx.
Example of the sequence of components: UVR power supply unit-> UM inverter with permissible line length of the line filter being
used (e.g., 500 m with EPCOS 202A) -> CEM filter module -> UMinverter whose interference is to be suppressed, with a line length
requiring a CEM module.

ID 584862-01

CEM 330

Cable extension module

CEM 330

Rated voltage

DC-link voltage Uz DC 509 V to DC 720 V

DC-link rated power output that may berouted via the CEM

max. 135 kW, at Uz ≥ DC 650 V
max. 30 kW, at Uz < DC 650 V

Maximum DC-link power that may berouted via the CEM

270 kW (concerning load cycle for maximum power of the UVR)

Necessity of a CEM

Please refer to the Technical Manual of the Gen 3 drives during the planning stage

Protection classIP20

NRTL approval

Only with variant -02 or higher

Module width

100 mmMass≈ 9 kg

ID

1354532-xx

45

Compact inverters

PAE-H switch-off
moduleThe PAE-H switch-off module for control systems with externalsafety is required in HEIDENHAIN control systems if all of thefollowing conditions apply:• The drives are digitally controlled by one or more CC 3xx
controller units• Integrated functional safety (FS) from HEIDENHAIN is not usedin this system

The PAE-H switch-off module makes it possible to initiate theSS1, STO, and SBC safety functions for up to eight drives oraxis groups. For this purpose, the PAE-H provides eight dualchannel inputs. In addition, the SBC function can be triggered
simultaneously for all drives. This is done using an additional dualchannel input. A PAE-H must be used in a system with externalsafety, and no more than this one PAE-H can be used. The PAE-H
can be operated in any slot of a PLB 62xx or PLB 61xx without FS.
The PAE-H must be integrated with the IOconfig PC tool. A PAE-H
is not required in systems with integrated functional safety (FS)and is therefore not supported there.
Please follow the basic circuit diagram of your control for wiring
the PAE-H inputs. The basic circuit diagrams for Gen 3 can befound in the Technical Manual for the Gen 3 Drives.

UEC 3xx (FS)In addition to the inverter, the UEC 3xx (FS) non-regenerative
compact inverters include the power supply unit, a controller
unit, and PLC inputs/outputs. They offer a complete solution formachines with a limited number of axes and low power demands.

Components

A UEC 3xx or UEC 3xx FS consists of the following components:
Controller units• Position controller, speed controller, current controller• HSCI interface• Interfaces to the speed and position encoders• With variant -03 or higher of the UEC 32x(FS), UEC 33x(FS): 1 x
HFL connection for connecting a UM 3xx
Power module• Power supply unit
• Inverter• Connections for motors and motor holding brakes• UEC 32x (FS), UEC 33x (FS): connection for external braking
resistor• UEC 31x (FS): integrated braking resistor• Connections for tapping the DC-link voltage and +24 V supply
voltage

UEC 325 FS, variant -03

System PL• Interfaces for one workpiece touch probe and one tool touchprobe• Integrated PLC I/Os (expandable with PL 61xx)• Configuration with IOconfig PC software• UEC 3xx FS: with integrated functional safety (FS) and dualchannel FS I/Os for use in SPLC program• UEC 3xx: dual-channel inputs for triggering STO and SBC for theconnected drives (function same as a PAE-H module)
The components required for operating the compact inverter from
HEIDENHAIN include the following:• NC software◦ NCK version 597110-15 or higher or◦ NCK version 597110-17 Service Pack 01 or higher, if theadditional HFL connection of the UEC 32x(FS), UEC 33x(FS)with variant -03 or higher is to be used
• MC main computer• UEC 32x (FS), UEC 33x (FS): PW 31x braking resistor• Siemens SITOR gR or gS line fuse
• Connectors for X38x:
UEC 314 (FS): 4 pieces, UEC 315 (FS): 5 pieces
UEC 324 (FS): 2 pieces, UEC 325 (FS): 3 pieces
UEC 334 (FS): 2 pieces, UEC 335 (FS): 3 pieces• Surge protector (if necessary)• SM 3xx voltage protection module (if necessary)• X76 jumper plugs for connection of optional modular
components (e.g. UM 3xx, RM 330, CC 3xx) (if necessary)• Further HEIDENHAIN UM 3xx modular inverters (if necessary)• One additional CC 3xx controller unit (if necessary)• RM 330 regenerative module (if necessary)• CMH 3xx capacitor module (if necessary)• PLB 61xx expansion PLs (if necessary)• Shield plates for X81, X82 (if necessary)46

47

All UEC 3xx(FS) compact inverters can be expanded with UM 3xx
modular inverters for up to four additional drive motors. For the
UEC 31x(FS) and for the UEC 32x(FS) and UEC 33x(FS) up to andincluding variant -02, an additional CC 3xx is always required.
The UEC 32x(FS) and UEC 33x(FS) with variant -03 or higher
provide an additional HFL connection and additional encoder
inputs. This makes it possible to connect an additional UM 31x
or UM 32x modular inverter to one of these UECs without anadditional CC controller unit. The UEC 3x4(FS) and UEC 3x5(FS)thus support a maximum of 6 drive motors with two encoders
each without an additional CC, only by connecting additional
UM 3xx inverters.
However, please note that the total power, acceleration power, andbraking power of all drive motors, including additionally connected
UM 3xx inverters or motors, must not exceed the maximum
permissible rating (DC-link power, currents, braking power etc.) of
the UEC 3xx (FS). Furthermore, the maximum permissible DC-link
capacitance must not be exceeded.

Compact inverter

UEC 314, UEC 314 FS

Power supply (input side)

3AC 400 V (–10 %) to3AC 480 V (+6 %)Rated frequency

50 to 60 Hz

Phase conductor current at rated power (input sideat 3AC 400 V)

35 A

Connected load (input side)

16 kW

DC-link voltage (output side);
Range for maximum tolerance band of the input
voltage

DC 509 V to DC 720V

DC-link rated power

15 kW

DC-link power during periodic S6-40% duty

22.5 kWMax. power of DC-link(4 s with cycle duration of 20 s)

30 kW

Power supply unit

The integrated power supply unit generates the rectified DC-link
voltage and the +24 V supply voltage from the connected line
voltage. The power module (DC-AC inverter) in the UEC 3xx (FS)provides the energy to the connected motor(s).

Min. conductor cross section for voltage supply at
X31 as per VDE 0298-4 (according to UL 508A)

6 mm2(AWG 10)
Copper, at least 70 °C

Conductor bars andCC 3xx controller
units

The DC-link voltage is routed to the outside via bus mountings in
the lower area of the UEC 3xx (FS) and the +24 V supply voltage
via jumper plugs to enable the optional connection of UM 3xx
modular inverters and additional CC 3xx controller units. These
components of the modular inverter system must always be
arranged to the right of the UEC 3xx (FS).

Siemens SITOR gR or gS line fuse

35 A
3NE8 003-1, gR or
3NE1 803-0, gS

Integrated 24 V power supply unit

max. 600 W, 24 A

Number of motor connections

4

5• Drive 1: 21 A
• Drive 2: 21 A
• Drives 3, 4: 10 A

• Drive 1: 21 A
• Drive 2: 21 A
• Drives 3, 4, 5: 10 A

Differences

RM 330 regenerative module

The different variants of the UEC 3xx (FS) compact inverters
differ in the DC-link power, the number of axes, the permissible
maximum currents, and the safety concept. Refer to thespecifications of the compact inverters.
In addition, the UEC 32x(FS) and UEC 33x(FS) with variant -03 or
higher have an additional HFL output and encoder inputs for directconnection of a UM 3xx to the UEC.

Rated current (PWM frequency of 5 kHz,for rotating field frequencies > 10 Hz1))

UEC 315, UEC 315 FS

Overview of the output currents

Page 55

Conductor cross section for the X38x motor
connection

The required conductor cross section depends on the rated current of theinverter and the connected motor, as well as on the operating mode, the typeof cable, and its manner of routing. It must be determined and protected by themachine manufacturer, if necessary.
The values indicated below are for operating mode 1 and a motor cable with anoperating temperature of at least 80 °C.
The machine manufacturer must determine the cross sections for otheroperating modes.

Minimum conductor cross section for the X38x
motor connections at a PWM frequency ≥ 3.33 kHz,as per VDE 0298-4(according to UL 508A)

X381, X382: at least 4 mm2 (AWG 10)
X383 to X385: at least 1.5 mm2 (AWG 14)

Minimum conductor cross section for the X38x
motor connections at a PWM frequency ≥ 5 kHz, as
per VDE 0298-4(according to UL 508A)

X381, X382: at least 2.5 mm2 (AWG 12)
X383 to X385: at least 1.5 mm2 (AWG 14)

Conductor type, type of routing for the specified
minimum conductor cross sections

Shielded cable, copper, 600/1000 V, resistant to oil and lubricants, routing type:C

Maximum possible PWM frequency

10 kHzBraking resistor

Integral braking resistor

The UEC 3xx(FS) compact inverters are non-regenerative inverter
systems. However, the compact inverters can be operated as aregenerative inverter system via an optional RM 330 regenerative
feedback module.

• 2.1 kW continuous power• 27 kW maximum power for 1.8 s at a cycle duration of 120 s
1) Derating at rotating field frequencies < 10 Hz: see Derating of the output currents

48

49

Compact inverter

UEC 314, UEC 314 FS

Max. current consumption 24 V via conductor-bar
connection without current for brake control

UEC 315, UEC 315 FS

Compact inverter

UEC 324, UEC 324 FS

Power is supplied via an integrated power pack

Power supply (input side)

3AC 400 V (–10 %) to3AC 480 V (+6 %)Power loss during rated operation

660 W

Rated frequency

50 to 60 Hz

Cooling method

Integrated fans

Number of free I/Os

Single-channel PLC inputs: 38
Fixed inputs: -ES.A, -ES.B, -REF-SP.PL
UEC 3xx FS: Single-channel free PLC outputs: 28
UEC 3xx: Single-channel free PLC outputs: 47
Fixed outputs: -STO.A.G
and for UEC 3xx FS additionally -STOS.A.G, -TEST.A, -TEST.B
UEC 3xx FS: Dual-channel SPLC inputs: 8
UEC 3xx FS: Dual-channel SPLC outputs: 8
UEC 3xx: inputs for axis release: 8 (function same as a PAE-H module)

740 W

UEC 325, UEC 325 FS

Phase conductor current at rated power (input side at 47 A
3AC 400 V)
Connected load (input side)

24 kW

DC-link voltage (output side);
Range for maximum tolerance band of the input
voltage

DC 509 V to DC 720V

DC-link rated power

22 kW

DC-link power during periodic S6-40% duty

33 kW

Max. power of DC-link(4 s with cycle duration of 20 s)

44 kW

Min. conductor cross section for voltage supply at
X31 as per VDE 0298-4 (according to UL 508A)

10 mm2(AWG 6)
Copper, at least 70 °C

Siemens SITOR gR or gS line fuse

50 A
3NE8 017-1, gR or
3NE1 817-0, gS

Integrated 24 V power supply unit

max. 600 W, 24 A

Number of motor connections

4

5• Drive 1: 31 A
• Drive 2: 28 A
• Drives 3, 4: 14 A

• Drive 1: 31 A
• Drive 2: 28 A
• Drives 3, 4, 5: 14 A

Touch probes

EnDat touch probes as of NCK software 597110-16

Max. output current per braking connection (+24 V,
HSLS)

Drive 1: 2.0 A
Drives 2 to 5: 2.0 A each (max. 6 A in total)

HFL connections

Not present

Encoder inputs

4 x 1 VPP, EnDat
4 x EnDat 2.2

Digital control loops

Max. 6 (single-speed)

SPI expansion slots

1

Protection classIP20

NRTL approval

Only as of variant -02

Module width

200 mm

200 mm

Mass

21 kg

22 kg

Overview of the output currents

ID

UEC 314: 1292240-xx
UEC 314 FS: 1292241-xx

UEC 315: 1292235-xx
UEC 315 FS: 1292237-xx

Conductor cross section for the X8x and X38x motor The required conductor cross section depends on the rated current of theconnections
inverter and the connected motor, as well as on the operating mode, the typeof cable, and its manner of routing. It must be determined and protected by themachine manufacturer, if necessary.
The values indicated below are for operating mode 1 and a motor cable with anoperating temperature of at least 80 °C.
The machine manufacturer must determine the cross sections for otheroperating modes.

1) Derating at rotating field frequencies < 10 Hz: see Derating of the output currents

5 x 1 VPP, EnDat
5 x EnDat 2.2

Rated current (PWM frequency of 5 kHz,for rotating field frequencies > 10 Hz1))

Page 56

Minimum conductor cross section for the X8x andX38x motor connections at a PWM frequency≥ 3.33 kHz, as per VDE 0298-4(according to UL 508A)

X8x: min. 6 mm2 (AWG 8)
X38x: min. 1.5 mm2 (AWG 14)

Minimum conductor cross section for the X8x andX38x motor connections at a PWM frequency≥ 5 kHz, as per VDE 0298-4(according to UL 508A)

X8x: min. 4 mm2 (AWG 10)
X38x: min. 1.5 mm2 (AWG 14)

Conductor type, type of routing for the specified
minimum conductor cross sections

Shielded cable, copper, 600/1000 V, resistant to oil and lubricants, routing type:C

Maximum possible PWM frequency

10 kHzBraking resistor

PW 310 external braking resistor required

Max. current consumption 24 V via conductor-bar
connection without current for brake control

Power is supplied via an integrated power pack

Power loss during rated operation

790 W

890 W

1) Derating at rotating field frequencies < 10 Hz: see Derating of the output currents

50

51

Compact inverter

UEC 324, UEC 324 FS

UEC 325, UEC 325 FS

Cooling method

Integrated fans

Number of free I/Os

Single-channel PLC inputs: 38
Fixed inputs: -ES.A, -ES.B, -REF-SP.PL
UEC 3xx FS: Single-channel free PLC outputs: 28
UEC 3xx: Single-channel free PLC outputs: 47
Fixed outputs: -STO.A.G
and for UEC 3xx FS additionally -STOS.A.G, -TEST.A, -TEST.B
UEC 3xx FS: Dual-channel SPLC inputs: 8
UEC 3xx FS: Dual-channel SPLC outputs: 8
UEC 3xx: inputs for axis release: 8 (function same as a PAE-H module)

Compact inverter

UEC 334, UEC 334 FS

Power supply (input side)

3AC 400 V (–10 %) to3AC 480 V (+6 %)Rated frequency

50 to 60 Hz

UEC 335, UEC 335 FS

Phase conductor current at rated power (input side at 59 A
3AC 400 V)
Connected load (input side)

32 kW

DC-link voltage (output side);
Range for maximum tolerance band of the input
voltage

DC 509 V to DC 720V

DC-link rated power

30 kW

DC-link power during periodic operation S6-40 %45 kW

Touch probes

EnDat touch probes as of NCK software 597110-16

Max. output current per braking connection (+24 V,
HSLS)

Drive 1: 2.0 A
Drives 2 to 5: 2.0 A each (max. 6 A in total)

HFL connections

Up to and including variant -02: not available
Variant -03 or higher: 1x HFL output

Max. power of DC-link(4 s with cycle duration of 20 s)

60 kW

Encoder inputs

Up to and including variant -02:
4 x 1 VPP, EnDat
4 x EnDat 2.2

Min. conductor cross section for voltage supply at
X31 as per VDE 0298-4(according to UL 508A)

16 mm2(AWG 4)
Copper, at least 70 °C

Variant -03 or higher:
6 x 1 VPP, EnDat
6 x EnDat 2.2

Siemens SITOR gR or gS line fuse

63 A
3NE8 018-1, gR or
3NE1 818-0, gS

Digital control loops

Max. 6 (single-speed)

Integrated 24 V power supply unit

max. 600 W, 24 A

SPI expansion slots

Not present

Number of motor connections

4

5

Protection classIP20

NRTL approval

Only as of variant -02

Rated current (PWM frequency of 5 kHz,for rotating field frequencies > 10 Hz1))• Drive 1: 46 A
• Drive 2: 35 A
• Drives 3, 4: 21 A

• Drive 1: 46 A
• Drive 2: 35 A
• Drives 3, 4, 5: 21 A

Module width

250 mm

250 mmOverview of the output currents

Mass

23 kg

24 kg

ID

UEC 324: 1295692-xx
UEC 324 FS: 1295693-xx

UEC 325: 1295694-xx
UEC 325 FS: 1295696-xx

Conductor cross section for the X8x and X38x motor The required conductor cross section depends on the rated current of theconnections
inverter and the connected motor, as well as on the operating mode, the typeof cable, and its manner of routing. It must be determined and protected by themachine manufacturer, if necessary.
The values indicated below are for operating mode 1 and a motor cable with anoperating temperature of at least 80 °C.
The machine manufacturer must determine the cross sections for otheroperating modes.

1) Derating at rotating field frequencies < 10 Hz: see Derating of the output currents

Up to and including variant -02:
5 x 1 VPP, EnDat
5 x EnDat 2.2

Page 57

Minimum conductor cross section for the X8x andX38x motor connections at a PWM frequency≥ 3.33 kHz, as per VDE 0298-4(according to UL 508A)

X8x: min. 10 mm2 (AWG 6)
X38x: min. 4 mm2 (AWG 10)

Minimum conductor cross section for the X8x andX38x motor connections at a PWM frequency≥ 5 kHz, X38x as per VDE 0298-4(according to UL 508A)

X81: min. 10 mm2 (AWG 8)
X82: min. 6 mm2 (AWG 10)
X38x: min. 2.5 mm2 (AWG 12)

Conductor type, type of routing for the specified
minimum conductor cross sections

Shielded cable, copper, 600/1000 V, resistant to oil and lubricants, routing type:C

Maximum possible PWM frequency

10 kHzBraking resistor

PW 310 external braking resistor required

Power loss during rated operation

1100 W

Cooling method

Integrated fans1240 W

1) Derating at rotating field frequencies < 10 Hz: see Derating of the output currents

52

53

Compact inverter

UEC 334, UEC 334 FS

UEC 335, UEC 335 FS

Number of free I/Os

Single-channel PLC inputs: 38
Fixed inputs: -ES.A, -ES.B, -REF-SP.PL
UEC 3xx FS: Single-channel free PLC outputs: 28
UEC 3xx: Single-channel free PLC outputs: 47
Fixed outputs: -STO.A.G
and for UEC 3xx FS additionally -STOS.A.G, -TEST.A, -TEST.B
UEC 3xx FS: Dual-channel SPLC inputs: 8
UEC 3xx FS: Dual-channel SPLC outputs: 8
UEC 3xx: inputs for axis release: 8 (function same as a PAE-H module)

Touch probes

EnDat touch probes as of NCK software 597110-16

Max. output current per braking connection (+24 V,
HSLS)

Drive 1: 2.0 A
Drives 2 to 5: 2.0 A each (max. 6 A in total)

HFL connections

Up to and including variant -02: not available
Variant -03 or higher: 1x HFL output

Encoder inputs

Up to and including variant -02:
4 x 1 VPP, EnDat
4 x EnDat 2.2

Up to and including variant -02:
5 x 1 VPP, EnDat
5 x EnDat 2.2

Variant -03 or higher:
6 x 1 VPP, EnDat
6 x EnDat 2.2
Digital control loops

Max. 6 (single-speed)

SPI expansion slots

Not present

Protection classIP20

NRTL approval

Only as of variant -02

Module width

250 mm

250 mm

Mass

24 kg

25 kg

ID

UEC 334: 1295698-xx
UEC 334 FS: 1295700-xx

UEC 335: 1295702-xx
UEC 335 FS: 1294744-xx

1) Derating at rotating field frequencies < 10 Hz: see Derating of the output currents

Output currents

Output currents of the UEC 314 (FS), UEC 315 (FS) compact
inverter based on the PWM frequency at a line voltage of3AC 400 V:
Currents

PWM frequency Drive 1

Drive 2

Drives 3, 4, 5

Rated current IN, BM 1
Current 0.7 · IN, BM 2
Current S6-40 %, BM 3
Maximum current IMaxAC, BM 4, 5

3.3 kHz

25 A
17.5 A
35 A
50 A

25 A
17.5 ANo BM 3
50 A

12 A
8A
No BM 324 A

4.0 kHz

23 A
16 A
32 A
46 A

23 A
16 A
No BM 3
46 A

11 A
7.5 A
No BM 322 A

5.0 kHz

21 A
15 A
29 A
42 A

21 A
15 A
No BM 3
42 A

10 A
7.5 A
No BM 320 A

6.6 kHz17.5 A
12 A
24.5 A
35 A

17.5 A
12 A
No BM 3
35

8A
5.5 A
No BM 316 A

8.0 kHz

15 A
10.5 A
21 A
30 A

15 A
10.5 ANo BM 3
30 A

7A
4.5 A
No BM 314 A

10 kHz12.5 A
8.5 A
17.5 A
25 A

12.5 A
8.5 A
No BM 325 A

6A
4A
No BM 312 A

For a description of the BM x operating modes or load cycles,
please refer to Page 35.
PWM frequencies > 10 kHz are not supported by the
UEC 3xx (FS).
PWM frequencies > 5 kHz require software option 49.

54

55

Output currents of the UEC 324 (FS), UEC 325 (FS) compact
inverter based on the PWM frequency at a line voltage of3AC 400 V:

Output currents of the UEC 334 (FS), UEC 335 (FS) compact
inverter based on the PWM frequency at a line voltage of3AC 400 V:

Currents

PWM frequency Drive 1

Drive 2

Drives 3, 4, 5Currents

PWM frequency Drive 1

Drive 2

Drives 3, 4, 5

Rated current IN, BM 1
Current 0.7 · IN, BM 2
Current S6-40 %, BM 3
Maximum current IMaxAC, BM 4, 5

3.3 kHz

37 A
25.5 A
51.5 A
74 A

33.5 A
23 A
46.5 A
67 A

16.5 A
11.5 ANo BM 333 A

Rated current IN, BM 1
Current 0.7 · IN, BM 2
Current S6-40 %, BM 3
Maximum current IMaxAC, BM 4, 5

3.3 kHz

50 A
35 A
70 A
100 A

42 A
29 A
58.5 A
84 A

25 A
17.5 ANo BM 350 A

4.0 kHz

34 A
23.5 A
47.5 A
68 A

30.5 A
21 A
42 A
61

15 A
10.5 ANo BM 330 A

4.0 kHz

50 A
35 A
70 A
100 A

38.5 A
26.5 A
53.5 A
77 A

23 A
16 A
No BM 346 A

5.0 kHz

31 A
22 A
43 A
62 A

28 A
20 A
39 A
56 A

14 A
10 A
No BM 328 A

5.0 kHz

46 A
31 A
64 A
92 A

35 A
25 A
49 A
70 A

21 A
15 A
No BM 342 A

6.6 kHz

26 A
18 A
36 A
52 A

23.5 A
16.5 A
32.5 A
47

11.5 A
8.0 A
No BM 323 A

6.6 kHz38.5 A
26.5 A
53.5 A
77 A

29 A
20 A
40.5 A
58 A

17.5 A
12 A
No BM 335 A

8.0 kHz22.5 A
15.5 A
31.5 A
45 A

20 A
14 A
28 A
40 A

10 A
7A
No BM 320 A

8.0 kHz33.5 A
23 A
46.5 A
67 A

25.5 A
17.5 A
35.5 A
51 A

15 A
10.5 ANo BM 330 A

10 kHz18.5 A
12.5 A
25.5 A
37 A

17 A
11.5 A
23.5 A
34 A

8.5 A
5.5 A
No BM 317 A

10 kHz28 A
19.5 A
39.5 A
56 A

21 A
14.5 A
29 A
42 A

12.5 A
8.5 A
No BM 325 A

For a description of the BM x operating modes or load cycles,
please refer to Page 35.

For a description of the BM x operating modes or load cycles,
please refer to Page 35.

PWM frequencies > 10 kHz are not supported by the
UEC 3xx (FS).

PWM frequencies > 10 kHz are not supported by the
UEC 3xx (FS).

PWM frequencies > 5 kHz require software option 49.

PWM frequencies > 5 kHz require software option 49.
Planning and selection of the compact
inverter

The selection of the compact inverter depends on the currents
required by the connected motor. In many cases, the inverter isselected based on the stall current of the motor being used. For
selection of the inverter, HEIDENHAIN recommends the following:
For a feed axis without a weight load or without a high load fromprocess forces, or for a spindle:• Rated current of the inverter (rotating field frequency > 10 Hz or
BM 1 operating mode) ≥ motor stall current
For feed axes with a weight load or with a high load from process
forces, make sure to consider the derating of the inverter output
current mentioned below:• Rated derating current (current at a rotating field frequencyof < 10 Hz or BM 2 operating mode) ≥ Motor stall current
where: rated derating current (BM 2) = rated current of theinverter (rotating field frequency > 10 Hz or BM 1) · 0.7

5657

Derating based on the rotating field frequency of the motor:
At rotating field frequencies of < 10 Hz (electrical frequency), thefollowing derating must be considered for the limit values of theoutput currents:
Current value from the specification tables (BM 1) · 0.7 = Current
at rotating field frequencies of < 10 Hz or BM 2 operating mode

Load cycles ofthe power supply
units in the
UEC 3xx (FS)

Load cycle for DC link power during periodic S6-40% operation:P

Derating of theoutput currents

Example:Rated current of the UEC 314 (FS), drive 1 (5 kHz, rotating field
frequency > 10 Hz) = 21 A (BM 1)
Rated current of the UEC 314 (FS), drive motor 1 (5 kHz, rotating
field frequency = 0 Hz) = 21 A · 0.7 = 15 A (BM 2)

PMax

PS6
PN

1.4 PN4 min

0.4 PN
10 mint

Load cycle for DC link maximum power:
IMaxACP

Effective value of phase current Imax

In addition, a further derating must be taken into account for the
maximum current at standstill. The following applies: IMaxDC =1.4 · INAC. The image below illustrates this relationship:

IMaxf
IMaxDC = 1.4 INAC

PMax

PS6
PN

0.7 IN4s

0.4 PN
20 s

0 Hz

f

10 Hz

Frequencyt

Derating based on the supply or line voltage:
At a line voltage or supply voltage of > 3AC 440 V (e.g. a grid with
3AC 480 V), a 10 % derating of the rated currents must be taken
into account.

58

59

UMC 31x FS

The non-regenerative UMC 3xx FS compact inverters include, in
addition to the inverter, a controller unit and PLC inputs/outputs.
However, a power supply unit is not included, which means that
the UMC 3xx FS must be supplied by a suitable external DC link.

Specifications of the power module of the UMC 3xx FS compact inverters

They represent an extension for secondary axes with low power
demands in existing inverter systems. The UMC 3xx FS compact
inverters are particularly suitable for decentralized applications
such as additional pallet change or tool change systems.

Compact inverter

UMC 314 FS

Power supply (input side)

DC 509 V to DC 720 V (rectified DC-link voltage, e.g. of a UVR 3xx or
UEC 3xx (FS))
DC +24 V PELV (DC +25 V ±5 %, e.g. of a UVR 3xx or UEC 3xx (FS))

Power consumption of the UMC at the +24 V

Typical power consumption 330 W, including:• 6 A total current for brake outputs• 1.3 A for fan at maximum speed• Requirements of internal supply voltages• Supply for EnDat encoders

In contrast to the UEC 3xx (FS), the UMC 3xx FS only supports thecontrol of axis motors, but not linear, torque or spindle motors.
Components

A UMC 3xx FS contains:
Controller unit
• Position controller, speed controller, current controller• HSCI interface• Interfaces to the speed and position encoders

Min. conductor cross section for voltage supply at
X33 as per VDE 0298-4(according to UL 508A)

System PL• Integrated PLC-I/Os (expandable with PLB 61xx (FS))• Configuration with IOconfig PC software• Dual-channel FS I/Os for use in SPLC program

Integrated 24 V power supply unit–

Number of motor connections

4

5

Rated current (PWM frequency of 5 kHz, at rotating
field frequencies > 10 Hz)• Drives 1, 2, 3: 10 A
• Drive 4: 15 A

• Drives 1, 2, 3, 4: 10 A
• Drive 5: 15 A

Overview of the output currents

Page 63

Conductor cross section for the X38x motor
connection

The required conductor cross section depends on the following factors andmust be determined and, if necessary, fused by the machine manufacturer:• Rated current of the inverter and the connected motor• Operating mode
• Cable type
• Cable routing type

UMC 315 FS• NC software with NCK version 597110-16 or higher• MC or PNC main computer• Fuse for protecting the DC-link connection between power

supply unit and UMC 3xx FS• External supply unit, e.g. UVR 3xx, UEC 3xx (FS) for the DC-link
supply and 24 V supply• Connectors for X38x:
UMC 314 (FS): 4 pieces, UMC 315 (FS): 5 pieces• Shield plate for connector X33 (if necessary)
Power supply unit

Differences

An external power supply unit (e.g. UVR 3xx) must provide therectified DC-link voltage and the +24 V DC voltage supply. The
power modules (DC-AC inverters) in the UMC 3xx FS then provide
the energy to the connected motor(s). Please note that no otherinverter may be connected to a UMC 3xx FS!
The UMC 3xx FS compact inverters differ in the number of axes
and the permissible maximum currents. Refer to the specificationsof the specific compact inverter.

6 mm2 (10 mm2 recommended)
Operating temperature at least 70 °C

Fuse protection of power supply from the supply unit Mersen DCT20-2, 20 A
(DC-link connection)

Power module• Inverter• Connections for motors and motor holding brakes• Connections for feeding the DC-link voltage• Connections for feeding the +24 V DC voltage supply

The components required for operating the UMC 3xx FS compact
inverter from HEIDENHAIN include the following:

UMC 315 FS

The values below are given for operating mode 1 and a motor cable designed foran operating temperature of at least 80 °C.
Cross sections for other operating modes must be defined by the machine
manufacturer.
Min. conductor cross section for motor connection
as per VDE 0298-4(according to UL 508A)• X381, X382, X383:

Min. 1.0 mm2 (AWG16)• X384:
Min. 1.5 mm2 (AWG 14)• X381, X382, X383, X384:
Min. 1.0 mm2 (AWG16)• X385:
Min. 1.5 mm2 (AWG 14)

Cable type

Shielded cable, copper, 600/1000 V, resistant to oil and lubricantsRouting type for the specified minimum conductor
cross section

Routing type C

Maximum possible PWM frequency

10 kHzBraking resistor

Not necessary: the regulation of the DC-link voltage must be handled by thepower supply unit used (e.g. UVR 3xx with UP 3xx)

Max. current consumption DC 24 V without current
for brake control≈ 11 A

Power loss during rated operation≈ 250 W

Cooling method

Integrated, temperature-controlled fans

≈ 260 W

1) Derating at rotating field frequencies < 10 Hz: see Derating of the output currents

60

61

Compact inverter
Number of free I/Os

UMC 314 FS

UMC 315 FS• Single-channel PLC inputs: 46• Fixed inputs: -REF-SP.PL• Single-channel free PLC outputs: 28• Fixed outputs: -STO.A.G, -STOS.A.G, -TEST.A, -TEST.B• Dual-channel SPLC inputs: 16• Dual-channel SPLC outputs: 8

Touch probes

Interface(s) not included

SPI expansion slots

Interface(s) not included

Max. output current per braking connection (+24 V,
HSLS)

Drives 1 to 5: 2.0 A each (max. 6 A in total)

Protection classIP20

NRTL approval

Yes

Yes

Module width

150 mm

150 mmMass

11.5 kg

12 kg

ID1296746-xx

1296745-xx

Output currents

Output currents of the UMC 3xx FS compact inverters based on
the PWM frequency at a DC-link voltage of DC 650 V:
PWM frequency

Rated current IN, BM 1
Current 0.7 · IN, BM 2
Maximum current IMaxAC, BM 4, 5

UMC 314 FS
Axes 1 to 3

UMC 314 FS
Axis 4

UMC 315 FS
Axes 1 to 4

UMC 315 FS
Axis 5

3.3 kHzOn request from HEIDENHAIN

4.0 kHz

11 A
7.7 A
22 A

15 A
10.5 A
30 A

5.0 kHz

10 A
7.0 A
20 A

15 A
10.5 A
30 A

6.6 kHz

8.4 A
5.88 A
16.8 A

12.6 A
8.82 A
25.2 A

8.0 kHz

7.3 A
5.11 A
14.6A

11 A
7.7 A
22 A

10 kHz

6.1 A
4.27 A
12.2 A

9.1 A
6.37 A
18.2A

1) Derating at rotating field frequencies < 10 Hz: see Derating of the output currents

For a description of the BM x operating modes or load cycles,
please refer to the Technical Manual of the Gen 3 drives.
For a description of the BM x operating modes or load cycles,
please refer to Page 35.
PWM frequencies > 10 kHz are not supported by the
UMC 3xx (FS).
PWM frequencies > 5 kHz require software option 49.

6263

Accessories for compact inverters

Planning and selection of the UMC
3xx FS compact
inverter

The selection of the compact inverter depends on the currents
required by the connected motor. In many cases, the inverter isselected based on the stall current of the motor being used.
For selection of the inverter, HEIDENHAIN recommends thefollowing:
For a feed axis without a weight load or without a high loadfrom process forces, or for a spindle:• Rated current of the inverter (rotating field frequency > 10 Hz) ≥Motor stall current
For feed axes with a weight load or with a high load fromprocess forces, make sure to consider the derating of theinverter output current mentioned below:• Rated derating current (current at a rotating field frequency< 10 Hz) ≥ Motor stall current
where: Rated derating current = Rated current of the inverter(rotating field frequency > 10 Hz) / 0.7

Derating of theoutput currents

Derating based on the rotating field frequency of the motor:
For rotating field frequencies of < 10 Hz (electrical frequency),
observe the following derating for the output current limits:
Current at rotating field frequency of < 10 Hz = Current value (fromthe tables in the specifications) · 0.7
Example:Rated current of the UMC 314, drive 1 (5 kHz, rotating field
frequency > 10 Hz) = 10 A
Rated current of the UMC 314, drive 1 (5 kHz, rotating field
frequency = 0 Hz) = 10 A · 0.7 = 7 ACompact inverter

UEC 31x (FS)UEC 32x (FS)UEC 33x (FS)HSCI cable(mandatory)

Gbit HSCI cable

Gbit HSCI cable

Gbit HSCI cable

Siemens SITOR gR or gS line fuse(mandatory)

35 A
3NE8 003-1, gR or
3NE1 803-0, gS

50 A
3NE8017-1, gR or
3NE1817-0-0, gS

63 A
3NE8018-1, gR or
3NE1818-0, gS

Connectors for motor/brakeconnection (mandatory)

Connectors for X38x (must be ordered separately):
For UEC 314 (FS):
4 pieces
For UEC 315 (FS):
5 pieces

For UEC 324 (FS):
2 pieces
For UEC 325 (FS):
3 pieces

Shield plate for shield connection(optional)

Integrated in X38x
connector

Must be ordered separately for connectors X81
and X82
Integrated in X38x connector

Power cables for connecting motors For information on HEIDENHAIN power cables to the motor, please refer(mandatory)
to the brochure or to the Technical Manual for the motors.
Braking resistor (mandatory)Integrated

Surge protector(optional)

VAL-MS 230/FM

Regenerative module (optional)

RM 330PW 310PW 310

Voltage protection module (optional) SM 320
Bus mounting of DC link and 24 V
supply voltage for connection of
optional modular components (e.g.
UM 3xx, RM 330, CC 3xx)

One X76 jumper plug must be ordered separately: ID 1043632-51
DC-link conductor bars are included with the optional modular component

Additional modular inverter(s)(optional)

UM 3xx + CC
3xx, for up to four
additional motors. CC
is mandatory.

Capacitor module (optional)

64

For UEC 334 (FS):
2 pieces
For UEC 335 (FS):
3 pieces

Up to and incl. variant -02:
UM 3xx + CC 3xx, for up to four additional
motors. CC is mandatory.
Variant -03 or higher:
An additional UM 3xx inverter can be connectedwithout an additional CC. In this case an HFL isalso required.
UM 3xx + CC 3xx, for up to four additional
motors. A CC from the second UM 3xx is
mandatory.

CMH 32065

PW 310 braking
resistor

The PW braking resistors convert the energy fed back into the DClink during braking into heat.
The PW 310 braking resistors mainly cool via convection of thesurrounding air. The braking resistor must be mounted outside
the electrical cabinet to allow the heat to dissipate. Otherwise,
the cooling system of the electrical cabinet must be configured
accordingly.
Either one PW 310 or two PW 310 can be connected in parallel to
the UEC 32x (FS) and UEC 33x (FS) compact inverters.

Regenerative
moduleWith the UEC 3xx (FS) non-regenerative compact inverters,
the excess braking energy of the motors is normally dissipated
via a braking resistor. Optionally, the braking energy can also
be returned to the line power via the RM 330 regenerative
module. For this purpose, the RM 330 is mounted to the rightof the UEC 3xx (FS) and connected to the UEC via X76 and the
DC conductor bars. The energy is fed back into the power supply
network by connecting the RM 330 to the supply network inparallel to the UEC.
To prevent damage to the machine and workpiece in the event ofa power failure, an additional PW braking resistor is also required
when using an RM 330 for the UEC 32x (FS) and UEC 33x (FS).
The machine manufacturer is responsible for selecting the braking
resistor depending on the peak power that will be present when
the drives are braked in the event of a power failure.

PW 310Braking resistor
modulePW 3102 x PW 310(parallel
connection of
two PW 310)

Continuous power

2 kW

4 kW

Peak power (1.5 % cyclic 27 kW
duration factor at a cycle
time of 120 s)

54 kW

Permissible energy
quantity

48.6 kWs

97.2 kWs

Resistor

22 ohms

11 ohms

UL certification

Yes

Yes

IP rating

IP20

IP20

Mass

6.7 kg2 x 6.7 kg

ID1324061-01

2 x 1324061-01

RM 330

One X76 jumper plug for connecting the RM 330 to a
UEC 3xx (FS) must be ordered separately (ID 1043632-51).
When using an RM 330, note that the closing voltage (start ofenergy recovery, approx. DC 570 V at 3AC 400 V) is significantly
lower than the switching voltage at which a braking resistor
becomes active (approx. DC 780 V). When braking at the limitof current, for example, this can lead to slower braking of theaxes and spindles, since less current can flow through the motorin the field weakening range due to the lower voltage. Whenusing an RM 330, therefore please note that possible parameter
adjustments or additional tests on the machine may be necessary.

When planning the values for the braking resistor, please note theadditional information in the Technical Manual of the Gen 3 drives.

6667

Regenerative module

RM 330DC-link voltage (input side)

DC 509 V to DC 720 V

Line power (output side)

3AC 400 V (–10 %) to3AC 480 V (+6 %)Rated frequency of line power

50/60 Hz

Switch-on voltage (start of energy recovery)

If DC-link voltage > rectified line voltage(approx. DC 570 V at 3AC 400 V)

Rated power

1 kW

Peak power (max. 2 s feedback at a cycle duration of 120 s)

60 kW1)

Min. conductor cross section for voltage supply at X31 as per
VDE 0298-4 (according to UL 508A)

4 mm2(AWG 12)IP rating

IP20

NRTL approval

Only with variant -02 or higher

Module width

50 mm

Mass

7.7 kg

ID

1215138-xx

X76 jumper plugs

Jumper plugs for the connection of +24 V, 0 V, and DRIVE OFF
when connecting modular components to a UEC 3xx (FS):• Max. 30 A for the +24 V connection• You need to order a connector separately if you want to extend
the UEC 3xx (FS) by adding modular components (e.g. UM 3xx,
CC 3xx, RM 330)
One piece

Terminating
holder for jumper
plug X76

ID 1043632-51

Bracket for the jumper plug that protrudes from the right edge of a
Gen 3 combination with 50 mm modules:• Bracket for X76• Simple mounting as for 24 V connection set
One piece

ID 1352462-01

1) Derating: If you reduce the line voltage of 3AC 400 V by 10%, the permissible peak power likewise decreases by 10%.

The permissible energy regeneration PR depends on the energy regeneration time tR and the cycle duration T as follows:
PR = (T / tR) * 1 kW
The following requirements must be met:

• P ≤P• The regenerated energy must not exceed 120 kWs within the cycle duration.
R

68

MAX

69

General accessories for inverter systems

Motor and brakeconnection

Connector for motor and brake connection:• For UM 310, UM 311, UM 320, UM 321, UEC 3xx (FS),
UMC 3xx (FS)• X38x hybrid connectors (not included in delivery; must beordered separately)
One piece
20 pieces
One piece
20 pieces
One piece
20 pieces

Surge protectors

ID 1249132-03,
ID 1249132-01,
ID 1249132-05,
ID 1249132-04,
ID 1249132-07,
ID 1249132-06,

Straight version
Straight version
Angled 150° to the left
Angled 150° to the left
Angled 210° to the rightAngled 210° to the rightIf synchronous motors or direct drive motors, such as synchronous
spindles or torque motors, are operated in the field weakening
range (e.g., as main spindle drives), then a power interruption (e.g.,
power failure) of the inverters can cause a voltage increase at thepower connections of the motor or inverter. This voltage increase
can damage the inverters and the motor. To prevent this, an SM
voltage-protection module must be installed in the motor supply
line between the motor and the inverter. If a fault occurs, the SM
will short-circuit the motor phases. The released braking energy isconverted into heat.

SM 320Operation in the field weakening range must be enabled throughmachine parameters of the control. Please refer to the Technical
Manual of your control.

The Phoenix VAL-MS 230/FM single-pole surge protector andthe three-pole FLT-SEC-T1+T2-3C-350/25-FM are used toprotect HEIDENHAIN power modules from overvoltages on the
conductors or from the mains. These surge protectors are also
equipped with a double-throw switch as a remote indicator switch.

You can use the following formula to decide whether an SM
voltage protection module must be used:
NMax = (850 V · NRated) / (U0 · √2)

Surge protector

VAL-MS 230/FM

FLT-SEC-T1+T2-3C-350/25-FM

Manufacturer

Phoenix

Phoenix

IEC test classII

I + II

EN typeT2

T1 + T2

Rated voltage

230 V

240 V

Rated frequency

50 / 60 Hz

50 / 60 Hz

Protector rated voltage (L-N)

AC 275 V

AC 350 V

Nominal discharge surge current

20 kA

25 kA (L -PEN)

Maximum discharge current

40 kA

---

Module width

Approx. 17.7 mm

Approx. 106.8 mm

ID827105-01 (contains threepieces)826918-01

The optional surge protector should preferably be installed after
the fuses and the line filter for the HEIDENHAIN power modules
as seen from the power connection. HEIDENHAIN recommends
the shortest possible lines between the supply unit and the surge
protector to ensure best possible protection for the HEIDENHAIN
power modules.
If this is difficult due to the electrical cabinet design or the wiring,then the overvoltage protector may also be installed prior to theline filter.

70

SM voltage
protection module

The resulting NMax has the following meaning: if the motor isoperated at a speed greater than the speed NMax, then a voltage
protection module must be used. Please also note the production
tolerances applying to the respective motor specifications. For
example, the actual no-load voltage can be more than 10% higher
than stated in the specifications. Take this into account when
considering whether an SM 3xx is required.
For the selection of the SM voltage-protection module, the shortcircuit current of the motor is decisive (evident from the motordata).
The rated current of the motor and the maximum short-circuitcurrent IK of a motor must be less than the maximum phasecurrent of the SM:
Where: XL = Xstr1 + XH + XSeries reactor
If Xstr1 = 0 and XSeries reactor = 0, then: XL = XH in Ohm
In this case, the following applies to the short-circuit current:
IK = U0/(√3 · XH)
Choosing between the SM 320 and SM 330:

• If I < 200 A, then SM 320• If 200 A < I < 350 A, then SM 330
K

K

The following data must be taken from the motor table of thecontrol:(The data is not always expressed in the base unit in the motor
table. In the above-mentioned formula, the values must beentered in the base units.)• U0: no-load voltage [V]• Xstr1: stator leakage reactance [ohm]• Xseries reactor: reactance of the series reactor [ohm]• XL: inductive reactance [ohm] (note: in the motor table the value
is expressed in [milliohm])• XH: magnetizing reactance [ohm] (note: in the motor table thevalue is expressed in [milliohm])

71

If a Wye/Delta protective circuit is used when operating
synchronous motors or direct drive motors in the field weakening
range, then the voltage protection function of the protective
module for the motor may be lost if the connection between the
SM and the motor is disconnected by, for example, contactors.
In order to maintain the voltage protection function, the following
must apply: even in the event of a power failure, the control of any
motor contactors must be ensured in such a way that the motor
remains connected to the SM. In a HEIDENHAIN system, this canbe achieved if the +24V PLB supply, as well as the supply of the
PLC outputs for the Wye contactor and the Delta contactor of therelevant motor, are supplied from the power adapter of the UVR,
because this is DC-link-buffered.

CMH 3xx
capacitor module

You can connect more than one CMH 3xx in parallel in a modular
inverter system in order to increase the available capacitancefor the DC-link voltage. However, a total capacitance of 40 mF
must not be exceeded in an inverter system with a UVR 3xx! The
capacitances of the individual power modules must also be taken
into account.
For the UEC 3xx (FS) compact inverters, no more than one
CMH 3xx may be used.

Voltage-protection module

SM 320Switching voltage

DC 830 V

Maximum phase current

200 A

-

Connection type

SM between UM and motor(in series)

Stub lines from UM to SM(parallel)

Maximum permissible short-circuit current
time ranges:< 1s
1 s to 20 s
Minimum waiting time between n switching
eventsMax. 400 A
Max. 200 A

SM 330Max. 700 A
Max. 350 An ≤ 2:• 10 min for a short-circuit duration of less than 10 s
• 20 min for a short-circuit duration of between 10 s and 20 sn ≥ 3: 60 min

72

A CMH 3xx capacitor module may be required for maintaining theDC-link voltage to perform a LIFTOFF if a power failure occurs.
This is necessary, for example, in order to perform a complete
LIFTOFF when direct drives are used.

PWM frequency

3.3 kHz to 16 kHz

Suited for

UM 3x0,UM 3x1,
UM 3x2,
UM 313,
UM 314,
UM 315
UEC 3xx (FS)UMS 312UM 316(W),UM 317W

NRTL approval

Yes

Yes

Protection class

IP20

Mass

≈ 3.8 kgID

1276063-xx

CMH 320

Capacitor module

CMH 320

Power supply

DC-link voltage DC 509 V to DC 720 V

Maximum voltage

DC 800 V

Rated capacitance

10 mF

Power loss with DC-link voltage of
DC 650 V≈ 30 W

Power loss with DC-link voltage of
DC 720 V≈ 36 W

NRTL approval

Yes

Mass

6.7 kg

ID1164215-xx

1237089-xx

73

PSL 330 lowvoltage power
supply unit

The PSL 330 low-voltage power supply unit generates a +24 V
output voltage from the connected line voltage and/or DClink voltage. This can be used as +24 V supply voltage for theconnected UM 3xx inverters, motor brakes connected to these,
other Gen 3 components and other accessories.
The PSL 330 is required if the power of the integrated +24 V
power pack in the UVR 3xx or UEC 3xx power supply unit is not
sufficient. This may be the case if many modular inverters andmany motors with holding brakes are used, for example. Modular
components of Gen 3, which are then arranged to the right of
the PSL 330, can be supplied with the alternative +24 V fromthe PSL via the +24 V busbar connection. In addition, the PSL
330 also provides the +24 V output voltage via a connector on
the underside, so that devices can also be supplied that are notconnected to the +24 V busbar connection (jumper plug X76).
Due to the mains supply (3AC via X31), the output voltages of
the PSL 330 are available when the the machine's main switch isturned on. The mains supply is mandatory for proper operation of
the PSL 330.
The additional necessary DC-link supply (DC) of the PSL 330 via
the DC-link voltage of a UVR 3xx or UEC 3xx(FS) means that thevoltage fed into the DC-link by the motors that are still running canbe used during line voltage failures. This buffered DC-link voltage
enables the PSL 330 to provide temporary maintenance of the+24 V output voltage in the event of a power failure.

Power packPSL 330

Module width

50 mm

Mass

3.6 kg

ID

1356546-xx

Multi-row
configuration

In some cases, limited space prevents the control and/or the
power modules from being installed in a single row or in acontinuous row within the electrical cabinet. This usually meansthat the devices must be installed in multiple rows or side by sidein separate rows.
Components like inverters and controller units in every row must
be connected to a 24 V supply bar at X76 and, possibly, the DC-link
voltage. These supply voltages are provided by one or more power
supply units. If each row has its own power supply unit, then thecomponents in this row can standardly be connected to the supply
voltages via the corresponding bus mountings. Often, however,
only one power supply unit is used in a multi-row configuration.
Special connection kits from HEIDENHAIN must then be used toelectrically connect the individual power module rows.

PSL 330

Connection kit for+24 V and DRIVE
OFF (X76)• Optional accessory for a multi-row or discontinuous
configuration• For lateral mounting at the outermost component of a power
module row• Line cross section: 4 mm , for up to 30 A
2Power packPSL 330

AC power supply (input side)

3AC 400 V (–10%) to3AC 480 V (+6%)

X76 connection kit

LengthID2m

1274603-02

3m

1274603-03

AC rated frequency

50 / 60 Hz

Phase conductor current at rated power (input side at 3AC 400 V)

1.3 A

Connected load (input side)

Approx. 700 W

DC power supply (input side)

DC-link current DC 509 to DC 720 V of a UVR 3xx or UEC 3xx(FS)Minimum conductor cross section and line type for power supply
at X31 as per DIN VDE 0298-4(according to table NEC 310-16)

H07 V2-K single conductor: 1.5 mm2(AWG 14),at least 80 °C, copper, at least AC 480 V, routing type: B2, C, or E
Pre-fuses for line protection are to be selected by the machine
manufacturer• Includes a shield plate for connecting the shield and which

Integrated power pack with 24 V power supply

Output voltage: DC +25 V ±3.0%
max. 650 W, 26 A total
Please refer to the Technical Manual of the Gen 3 drives during theplanning stage

Connection kit
DC-link• max. 20 A via X76• max. 26 A via X90
Cooling method

Integrated fanProtection class

IP20

Power loss during rated operation PV

For information on the power loss values, please refer to theTechnical Manual for the Gen 3 drives.

Low-voltage cut-off limit during operation on DC-link voltage

from < 350 V

NRTL approval

Yes

74

Connection kit for
DC link• Optional accessory for a multi-row or discontinuous
configuration• For lateral mounting at the outermost component of a power
module row

serves as strain relief for UVR 3xx or components with a width≤ 75 mm• Line cross section: 10 mm2, for up to 55 A
LengthID2m

1278910-023m

1278910-03

75

Shield plates

The shield plates are an optional accessory, and are not included
with the modular inverters or compact inverters.

HSCI connection

Modular inverters:

The Gbit HSCI cable (ID 1257765-xx) can also be used in place ofthe HSCI cable for 100 Mbit (ID 618893-xx). However, the reverse
is not possible. Control systems that require Gbit HSCI can be
operated only with the Gbit HSCI cable. The HSCI cables from
HEIDENHAIN are suitable for use in drag chains.

The various shield plates are optional accessories for the shieldconnection of the motor power cable. They are each mountedwith screws to the UM modular inverter and must not be used forstrain relief. The screws are included in delivery.
Shield plate

QuantityID

UM 312, UM 322

11271547-01

101271547-02

11271564-01

101271564-02

11271566-01

51271566-02

11271567-01

UM 313, UM 314

UM 315

UM 316, UM 317

HSCI cableID

Minimum bend
radius (rigid
configuration)

Minimum bend Diameterradius (frequentflexing)Max. length

HSCI

618893-xx≥ 40 mm≥ 100 mm

6.8 mm

70 m

100 Mbit

1257765-xx≥ 40 mm≥ 100 mm

7.2 mm35 m

Gbit

1306923-xx≥ 60 mm≥ 150 mm

9.6 mm70 m

Gbit

Two short connecting pieces with the specifications of ID 1257765-xx are
included in the items supplied.
Cable lengths

Cable

ID

0.20 m Gbit HSCI cable

1257765-A2

The various shield plates are optional accessories for:0.30 m Gbit HSCI cable

1257765-A3• The shield connection of the motor power cables for the

0.50 m Gbit HSCI cable

1257765-A5

1.00 m Gbit HSCI cable

1257765-01

2.00 m Gbit HSCI cable

1257765-02

3.00 m Gbit HSCI cable

1257765-03

4.00 m Gbit HSCI cable

1257765-04

6.00 m Gbit HSCI cable

1257765-06

7.00 m Gbit HSCI cable

1257765-07

8.00 m Gbit HSCI cable

1257765-08

9.00 m Gbit HSCI cable

1257765-09

10.00 m Gbit HSCI cable

1257765-10

12.00 m Gbit HSCI cable

1257765-12

15.00 m Gbit HSCI cable

1257765-15

17.00 m Gbit HSCI cable

1257765-17

20.00 m Gbit HSCI cable

1257765-20

25.00 m Gbit HSCI cable

1257765-25

30.00 m Gbit HSCI cable

1257765-30

35.00 m Gbit HSCI cable

1257765-35

Compact inverters:

UEC 32x (FS) and UEC 33x (FS) for the two powerful axes at
X81 and X82• The shield connection of the cable for the DC-link voltage of the
UMC 31x FS at X33
The shield plates must not be used as strain relief. The screws areincluded in delivery.

76

With the Gen 3 drives, communication between the HSCI
components is carried out over Gbit cables with gray HSCI
connectors. Previous HSCI cables have black connectors.

Shield plate

QuantityID

UEC 32x(FS),UEC 33x(FS)21325070-01

UMC 31x FS

11351044-01

77

Kit lengths

Kit

ID

40 m

1306923-40

50 m

1306923-50

60 m

1306923-60

70 m

1306923-70

The kit (ID 1306923-xx) comprises:• 2 x 20 cm long connecting pieces (specifications identical to

ID 1257765-xx) comprising:– 1 x standard HSCI connector for connection to
HSCI components– 1 x Gbit HSCI cable, 7.2 mm in diameter– 1 x special coupling for connection to
Gbit HSCI cable for lines 40 m or longer (diameter: 9.6 mm)
1x• Gbit HSCI cable, 9.6 mm in diameter (specifications identicalto ID 1306923-xx) and 40 m to 70 m in length, with two special
couplings for connection to the connecting piece

HFL(optical fiber)

The HFL cable lets you connect the UM 3xx modular inverters to
the CC 3xx controller units for PWM-control of the inverters.

Length of the
HFL cable

For the length of the optical fiber cable from the CC 3xx controller
unit to the UM 3xx power module, HEIDENHAIN recommends
the following:
When the UM 3xx power module is located to the left of theCC 3xx controller unit:
Length of HFL = width of the module to be connected (b) + widthof all modules (b) between the UM and the CC + 300 mm (c1)
For example, the following arrangement:
UVR 340, UM 314, UM 313, UM 322, UM 321, CC 308

CC 308 to UM 314: 650 mm
CC 308 to UM 313: 550 mm
CC 308 to UM 322: 450 mm
CC 308 to UM 321: 350 mm

78

79

When the UM 3xx power module is located to the right of theCC 3xx controller unit:
Length of HFL = width of the module to be connected (b) + widthof all modules (b) between the UM and the CC + 200 mm (c2)
For example, the following arrangement:
UVR 340, UM 314, UM 313, CC 308, UM 321, UM 322

Orderablevariants of the
HFL connection

Rolls of optical fiber cable

ID number

10 m roll of optical fiber cable, forassembly by the machine manufacturer

1265351-90

50 m roll of optical fiber cable, for assemblyby the machine manufacturer

1265351-92

100 m roll of optical fiber cable, for assembly 1265351-95
by the machine manufacturer
Cutting the optical fiber cable to length requires the following tool:• Rennsteig pliers for "cutting and stripping duplex cable" (ordernumber 8002 0012 3, available on request from Hoffmann
Werkzeuge)• Replacement cutting tools for these pliers, also available from
Hoffmann Werkzeuge with order number 8000 0005 0 0 (safety
cutting device, must be replaced after 2500 cuts)b

CC 308 to UM 314: 500 mm
CC 308 to UM 313: 400 mm
CC 308 to UM 321: 300 mm
CC 308 to UM 322: 350 mm

80

c1

c2

b

Optical fiber cable cut tolengthID number

0.30 m optical fiber cable1265351-01

0.35 m optical fiber cable1265351-02

0.40 m optical fiber cable1265351-03

0.45 m optical fiber cable1265351-04

0.50 m optical fiber cable1265351-05

0.55 m optical fiber cable1265351-06

0.60 m optical fiber cable1265351-07

0.65 m optical fiber cable1265351-08

0.70 m optical fiber cable1265351-09

0.75 m optical fiber cable1265351-100.80 m optical fiber cable1265351-11

0.85 m optical fiber cable1265351-120.90 m optical fiber cable1265351-13

0.95 m optical fiber cable1265351-14

1.00 m optical fiber cable1265351-15

1.10 m optical fiber cable1265351-17

1.20 m optical fiber cable1265351-19

1.30 m optical fiber cable1265351-21

1.40 m optical fiber cable1265351-23

1.50 m optical fiber cable1265351-25

1.60 m optical fiber cable1265351-27

1.70 m optical fiber cable1265351-29

1.80 m optical fiber cable1265351-31

1.90 m optical fiber cable1265351-33

2.00 m optical fiber cable1265351-35

81

Overview of cables
Modular inverter system

UEC 3xx (FS) compact inverter

ID 1265351-xx

18.12.2019

ID 1257765-xx

26.08.2020

L1 L2 L3

ID 1265351-xx

ID 1257765-xx

L1 L2 L3

SIEMENS
Sitor gS or gRline fuse

SIEMENS
Sitor gS or gRline fuse
UM 3xx

UM 3xxUVR 3xx

UM 3xx

UM 3xx

UM
3xx

UP CMH3xx 3xx

PW 310

UEC 3xx

CC 3xxLine filter
Epcos
xxA

RM
330

UM 3xxCMH CC
3xx 302

DC-link and 24 V supply
conductor-bar connection

DC-link and 24 V supply conductor-bar connection (included in delivery)

KDR 3xxFor maximum lengths, see“Gen 3 Drives” Technical Manual.

Optional
overvoltage protector

82

For maximum lengths, see“Gen 3 Drives”
Technical Manual.

For power cables to the motor, see“HEIDENHAIN Motors” brochure.

For power cables to the motor, see“HEIDENHAIN Motors” brochure.

83

Mounting information

Mounting
position

Please note the following when mounting the HEIDENHAIN power
modules:• The HEIDENHAIN power modules and control components must
be operated only in enclosures or electrical cabinets that fulfill
at least protection class IP54 in accordance with the European
enclosure specifications. Ensure that, depending on the locationof the machine, at least equivalent requirements are fulfilled. The
machine manufacturer is responsible for this.
• The HEIDENHAIN power modules and control components must
be mounted vertically in the electrical cabinet.
• Minimum clearances that must be maintained• Required clearances for air circulation and servicing• Appropriate length of the cables• Permissible bend radii of the cables• Do not mount any other devices that generate or dissipate heat
below or in the immediate vicinity of the HEIDENHAIN power
modules. Air that has already been heated should be prevented
from being sucked in for the cooling of the HEIDENHAIN power
modules.
• Professional mounting in connection with other devices in theelectrical cabinet (see the following drawings).
• All of the HEIDENHAIN control components or devices (CC, MC,
BF, MB, TE, UV(R), UR, UE, UEC, UMC, KDR, SM, etc.) must
be operated only in enclosures suitable for this purpose, suchas electrical cabinets or panels. Fire-protective housings thatmeet the fire protection requirements at the place of installationmust be used as enclosures. The enclosures must also provide
protection against electric shock.

Clearances for
HEIDENHAIN
components

Arrangement of
HEIDENHAIN
components

Mounting
and electricalinstallation

For mounting and the electrical connection, comply with thefollowing:• National regulations for low-voltage installations at the operatingsite of the machine or components• National regulations regarding interference and noise immunity
at the operating site of the machine or components• National regulations regarding electrical safety and operating
conditions at the operating site of the machine or components• Specifications for the installation position• Specifications of the Technical ManualProtection classes

The following components fulfill the requirements for protection
class IP54 (dust- and splash-proof protection):• Display unit (when properly installed)• Keyboard unit (when properly installed)• Machine operating panel (when properly installed)• Handwheel
All electric and electronic control components must be installed
in an environment (e.g., electrical cabinet, enclosure) that fulfills
the requirements of protection class IP54 (dust- and splashproof protection) in order to fulfill the requirements of pollution
degree 2. All components of the OEM operating panel must,
like the HEIDENHAIN operating panel components, comply withprotection class IP54.

84

85

Dimensions

Intended place of
operation

HEIDENHAIN power modules and their accessories comply withthe following standards based on Directive 2014/30/EC:• Interference as per EN 61800-3, Category C3 and EN 50370-1• Noise immunity in accordance with EN 61800-3, second
environment, and EN 50370-2

UVR 330300
149.5+0.5

Protect your equipment from interference by following the rules
and recommendations on EMC provided in the Technical Manual
for the Gen 3 drives. In particular, ensure that you follow theprotective measures regarding an electromagnetically compliant
configuration.
The inverter systems and power modules from HEIDENHAIN
are intended for operation in industrial and mixed-use areas.
The devices conform to EN 50370 (product-family standard formachine tools) and EN 61800-3, and fulfill the requirements for
an industrial low-voltage supply network. The devices are notintended to be used on a public low-voltage supply network that
supplies households. The devices may cause high-frequency
interference.

410

Place of operation

234

15

During installation, pay special attention to the following factors
with regard to electromagnetic compatibility.

380

Electromagnetic
compatibility

234

23.5

Be aware of degraded performance due to current derating when
HEIDENHAIN power modules are installed at elevations of greaterthan 1000 m above sea level. Interpolation is linear for current
derating:• 1000 m to 2000 m: 100% to 85%• 2000 m to 3000 m: 85% to 75%

300
199.5+0.5

15

At an installation elevation of greater than 2000 m above sea
level up to a maximum permissible installation elevation of3000 m, HEIDENHAIN power modules, as well as the control
system, must be operated in a supply network that complies withovervoltage category II as per EN 61800-5-1 and UL 61800-5-1.
This can be attained, for example, by means of an upstream
isolating transformer.

UVR 340, UVR 350

380

The maximum installation elevation for HEIDENHAIN power
modules and the pertaining accessories (UVR, UM, UEC,
KDR, line filter, PSL, etc.) for direct connection to line power is2000 m above sea level. This is due to the fact that, up to an
installation elevation of 2000 m above sea level, the HEIDENHAIN
power modules and their accessories comply with Overvoltage
Category III as per EN 61800-5-1 and UL 61800-5-1

410

Installation
elevation

17.3

The product conforms to category C3 as per EN 61800-3. This
product can cause radio interference in residential areas. This
would require the operator to ensure that appropriate measures
are taken.

8687

UM 310, UM 311, UM 320, UM 321

UVR 360(W)

300

300

49.5+0.5

234

28

63

380

410

15

234

380

410

15

249.5+0.5

UM 312, UM 322

35

88

15

234

234

380

380

410

15

249.5+0.5

300
99.5+0.5

410

300

9.5

UVR 370(W)89UM 313

UM 315

300

234

19.6

35

410

15

149.75+0.5

380

234

380

410

15

99.5+0.5300

UM 314

300

380

234

28

410

15

99.5+0.5

9091

UM 316

UM 316W

300

92

188

234

380

15

199.5+0.5

410

380

234

124.5

124.5

410

15

199.5+0.5

300

188

93

UMS 312

UM 317W

300

300

234

380

380

410

15

99.5+0.5

234

9.5

124.5

410

15

199.5+0.5

188

UEC 31x (FS)

77

380

300

16.6

410

15

199.5+0.5

9495UEC 32x (FS), UEC 33x (FS) with variant -03 or higher

300

77

249.5+0.5

300

77

19.6

410

16

77

380

300

19.6

410

16

249.5+0.5

380

UEC 32x (FS) up to and including variant -02

UEC 33x (FS) up to and including variant -02

380

19.6

410

16

249.5+0.5

9697

UMC 31x FS

UMC 31x FS

149.5+0.5

280
20

430.330-0.5

33

11
6

9.3

20
7
0
34.5 222

0

RM 3301724.5

890.3

57
53
5

430

480

3(2x)

21.4

13

18

300

Shield plate for UEC 32x (FS), UEC 33x (FS)15

49.5+0.5

234

12.5

8.5
2

9.3

2x45°

380

410

0

20

33
400.33

18

33

30–0.513

53

890.3

21.4

98

99

PW 310

PSL 330








120±0.4

300

380

234







410

15

49.5+0.5



100

101

Shield plate for UM 312, UM 322, UM 313, UM 314

Shield plate for UM 315, UM 316, UM 317

UM 3151281
7

1140.2

0

501

14
1102

751

200.5113.50.5

88.50.5

63.50.5140138.50.5

100.5
0

1922

151
160.560.5
10.50.3

200.5

40.5

1130.5

107.50.5

830.557.50.5
690.544.50.5

190.50

2

UM 316(W) / UM 317W
85

1541
67.9

76.9

104.9

201362

2

102

103

CC 302

CC 308300

300

CC 306

234

380

410

15

99.5+0.5

234

380

410

15

49.5+0.5

CC 310

300

300

104

15

124.5+0.5

234

380

234

410

380

410

15

74.5+0.5

105CMH 320, UP 310, UP 320

KDR 330

200

300

160

90

234

76

15

49.5+0.5

~44

150

10.3

21.5

200.1

380

410

30.5

6.5

60.2

CEM 330

300

106

234

380

410

15

99.5+0.5

107

KDR 340

KDR 350

2502

1
8.
4x

75

1201



1201

2422

801

801

801

801

28.5
801

801

119.53

2255

119.53

2255

8.1
4x

28.5

28.5

108



1601

1601

1645
801

28.5

1645

801

1715

109

KDR 360

KDR 370

129.52

4185

3735

2915

129.52

(89)

9
 6x
(89)
(89)

1501

1782

(89)

1501

1782

9
 6x

2501
3582
2501
3582

110

111

Line filter 46A

Line filter 135A

238

54

54

25

1.5

51.5

51.5

170

M8x28.5

45

1.5

651

42

42
651

M6x24

150

386

233

65
335

50

300

220

6.5

1000.4

3151

5.5

2100.3125130700.2

94

100

195

Line filter 202A

Line filter 83A

303

210

74

74

M8x28.5

290

60

1.5

57.8

99

99

25

1.5

150

501

48.7 42

M6x25

48.7

42

297.6

75

260

438

112

1000.5

145

150

7

2800.3

6.5

400

85

110

116

4130.8

113

SM 320

SM 330

98
46.5

180.5

170

0
19.5

200.5

V

82.25

W

115.25

10

R6

.5

170

55

49.25

6.5

149

66.25

100




U

1000.2

0.2

6.5

454



W

145.35V

109.35

U

73.35

35

35

188.5
0.2

13.5

0103.251349.75 500.2

6.5

6.5

110

9

114

115

Subject index

X38x connectors

A
Accessories for coolant connection..................................................................................................................................................... 44
Accessories for modular inverter systems........................................................................................................................................... 40
Accessories for the UVR 3xx power supply units................................................................................................................................ 24
Adapter connector for temperature sensor.......................................................................................................................................... 39

92.5

B
27

52

Braking resistor module...................................................................................................................................................................... 43
Braking resistor PW 310...................................................................................................................................................................... 66

47

C

Straight

Cable extension module, CEM 330..................................................................................................................................................... 45
CC 302....................................................................................................................................................................................... 38, 104
CC 306....................................................................................................................................................................................... 38, 104
CC 308....................................................................................................................................................................................... 38, 105
CC 310....................................................................................................................................................................................... 38, 105
CEM 330.......................................................................................................................................................................................... 106
CMH 320.................................................................................................................................................................................... 73, 106
CMH 3xx capacitor module................................................................................................................................................................ 73
Compact inverters........................................................................................................................................................................... 7, 47
Controller unit..................................................................................................................................................................................... 37

D

90

DC-link voltage...................................................................................................................................................................................... 5
Dimensions......................................................................................................................................................................................... 87

52

47

27

52

E
EIB 5000 sensor box.......................................................................................................................................................................... 39
EPCOS 135A...................................................................................................................................................................................... 42
EPCOS 202A...................................................................................................................................................................................... 42
EPCOS 46A........................................................................................................................................................................................ 42
EPCOS 83A........................................................................................................................................................................................ 42F
Functional safety (FS)............................................................................................................................................................................ 6
Angled 150° to the left

G
General accessories for inverter systems............................................................................................................................................ 70

H90

HFL cable and bus mounting................................................................................................................................................................ 8
52

27

I
Inverter systems................................................................................................................................................................................. 12

Angled 210° to the right

47

59.5

K
KDR 330..................................................................................................................................................................................... 41, 107
KDR 340..................................................................................................................................................................................... 41, 108
KDR 350..................................................................................................................................................................................... 41, 109
KDR 360..................................................................................................................................................................................... 42, 110
KDR 370..................................................................................................................................................................................... 42, 111
KDR 3xx commutating reactor............................................................................................................................................................ 41

LLine filter............................................................................................................................................................................................. 42
Line filter 135 A................................................................................................................................................................................ 113

116

117

Line filter 202 A................................................................................................................................................................................ 113
Line filter 46 A.................................................................................................................................................................................. 112
Line filter 83 A.................................................................................................................................................................................. 112
Load cycles of supply unit.................................................................................................................................................................. 23
Load cycles of the motor outputs on UM 3xx, UEC 3xx...................................................................................................................... 35

UVR 360 (W)...................................................................................................................................................................................... 88
UVR 370 (W)...................................................................................................................................................................................... 88X
X38x connectors............................................................................................................................................................................... 116

M
Modular inverters............................................................................................................................................................................ 6, 25
Modular inverter systems..................................................................................................................................................................... 9Motor currents...................................................................................................................................................................................... 8
Mounting information.......................................................................................................................................................................... 84
Mounting position............................................................................................................................................................................... 84
Multi-row configuration....................................................................................................................................................................... 75

N
Non-regenerative compact inverter systems......................................................................................................................................... 4O
Output currents............................................................................................................................................................................ 30, 55
Overview of cables............................................................................................................................................................................. 82

P
PAE-H switch-off module.................................................................................................................................................................... 46
Power supply unit............................................................................................................................................................................... 20
PSL 330............................................................................................................................................................................................ 101
PSL 330 low-voltage power supply unit.............................................................................................................................................. 74
PW 310............................................................................................................................................................................................. 100

R
Regenerative inverter systems.............................................................................................................................................................. 4
Regenerative module.......................................................................................................................................................................... 67
RM 330.............................................................................................................................................................................................. 99

S
Safety functions.................................................................................................................................................................................... 5
Shield plate for UEC 32x (FS), UEC 33x (FS)........................................................................................................................................ 98
SM 320............................................................................................................................................................................................. 114
SM 330............................................................................................................................................................................................. 115
SM voltage protection module............................................................................................................................................................ 71
Surge protectors................................................................................................................................................................................. 70

U
UEC 31x (FS)...................................................................................................................................................................................... 95
UEC 32x (FS), UEC 33x (FS) with variant -03 or higher....................................................................................................................... 97
UEC 32x (FS) up to and including variant -02...................................................................................................................................... 96
UEC 33x (FS) up to and including variant -02...................................................................................................................................... 96
UM 310, UM 311, UM 312................................................................................................................................................................. 26
UM 313, UM 314, UM 315................................................................................................................................................................ 27
UM 316, UM 316 W, UM 317 W....................................................................................................................................................... 28
UM 320, UM 321, UM 322................................................................................................................................................................ 29
UM 3xx, accessories.......................................................................................................................................................................... 40
UM 3xx, currents.......................................................................................................................................................................... 30, 31
UMC 31x FS....................................................................................................................................................................................... 98
UMC 3xx, specifications..................................................................................................................................................................... 61
UMC 3xx FS, currents........................................................................................................................................................................ 63
UMS 312...................................................................................................................................................................................... 34, 95
UP 310.............................................................................................................................................................................................. 106
UP 320............................................................................................................................................................................................. 106
UVR 330, UVR 340, UVR 350............................................................................................................................................................. 87

118

119

Mastering nanometer accuracy

DR. JOHANNES HEIDENHAIN GmbH
Dr.-Johannes-Heidenhain-Straße 583301 Traunreut, Germany +49 8669 31-0
 +49 8669 32-5061
info@heidenhain.dewww.heidenhain.com

1303180-25 · 03/2023 · H · Printed in Germany

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