Product Information

ECN 1313
ECN 1325
ERN 1387
Rotary Encoders with
Plane-Surface Coupling forElevator Servo Drive
ControlJuly 2017

ECN/ERN 1300 series
Rotary encoders with integral bearings for elevator technology• Simple installation• Rigid shaft coupling• Plane-surface coupling for large mounting tolerances• Uniform dimensions for various electrical interfaces

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཰
ཱ

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 = Bearing of mating shaft
 = Bearing of encoder
 = Required mating dimensions
 = Measuring point for operating temperature
1 = Screw plug, width A/F 3 and 4. Tightening torque: 5+0.5 Nm
2 = PCB connector
3 = Self-tightening screw M5 x 50 DIN 6912 width A/F 4, tightening torque 5+0.5 Nm
4 = M10 back-off thread
5 = M6 back-off thread
6 = Max. permissible tolerance during motor shaft rotation ±1.5 mm
7 = Max. permissible static radial offset of motor shaft in indicated direction ±0.13 mm
8 = Direction of shaft rotation for output signals as per the interface description

2Product Information ECN 1313/ECN 1325/ERN 1387

7/2017

Absolute

Incremental

ECN 1325

ECN 1313

ERN 1387

Part number683643-xx

768295-xx

749146-xx

Interface1)

EnDat 2.2

Ordering designation

EnDat22

EnDat01–

Position values/revolution

33 554 432 (25 bits)

8192 (13 bits)

Z1 track3)

Electrically permissiblespeed/error2)

15 000 rpm(for continuous position value) 1500 rpm/±1 LSB
12 000 rpm/±50 LSB–

Calculation time tcal
Clock frequency

7 µs

9 µs

––Incremental signals1)–

 1 VPP 1 VPP 1 VPPLine count/system accuracy 2048/±20“Reference mark–One

Cutoff frequency –3 dB–

 400 kHz 210 kHzElectrical connection
Via PCB connector

Rotary encoder: 12-pin
Temperature sensor4): 4-pin

12-pin14-pinVoltage supply

DC 3.6 V to 14 V

DC 5 V ±0.25 VPower consumption1)(maximum)3.6 V:  600 mW
14 V:  700 mW–Current consumption

5 V: 85 mA (typical, without load) 130 mA (without load)

Stator coupling

Plane-surface coupling

Shaft

Taper shaft  9.25 mm; taper 1:10

Mech. permiss. speed n2000 rpm

Starting torque0.01 Nm (at 20 °C)

Moment of inertia of rotor

2.6 · 10Permissible axial motion ofmeasured shaft5)±1.5 mm

Radial runout of themeasured shaft

0.13 mm–6kgm2Vibration 55 Hz to 2000 Hz  300 m/s2 6) (EN 60 068-2-6)
Shock 6 ms
 2000 m/s2 (EN 60 068-2-27)
Operating temperature–40 °C to +115 °C

Protection EN 60 529

IP40 when mountedMass 0.25 kg–40 °C to +120 °C1)

See Interfaces of HEIDENHAIN Encoders brochure
Velocity-dependent deviations between the absolute value and incremental signals
3)
One sine and one cosine signal per revolution4)
Evaluation optimized for KTY 84-130
5)Compensation of mounting tolerances and thermal expansion, not dynamic motion
6)
As per standard for room temperature; for operating temperature
Up to +100 °C:  300 m/s2
Up to +115 °C or +120 °C:  150 m/s22)

Product Information ECN 1313/ECN 1325/ERN 1387

7/20173

Electrical connection
Pin layouts

ECN 1313 pin layout
17-pin coupling orflange socket M23

12-pin PCB connector

121)Power supply

127

1

104

1115

16

12

13

14

17

8

91b6a4b3a/2a5b4a3b6b1a2b5aUPSensor
UP0V

A+A–B+B–DATA

DATA

CLOCK CLOCKBrown/
GreenBlueWhite/
GreenGreen/
Black

Yellow/BlackBlue/
BlackRed/BlackGrayPinkViolet

Other signals

12

Serial data transfer

Incremental signals

56////Sensor Internal
0VshieldWhite/

Yellow

Cable shield connected to housing; UP = Power supply voltage; T = Temperature
Sensor: The sensor line is connected in the encoder with the corresponding power line.
Vacant pins or wires must not be used.
1)
2)

Only with ordering designations EnDat 01 and EnDat 02
Only for cables inside the motor housing

Brown2) White2)

ECN 1325 pin layout8-pin coupling orflange socket, M129-pin flange socket,
M23

16-pinPCB connector
16Voltage supply

Serial data transfer

Other signals

M1282513476//

M23

37485612//

161b6a4b3a6b1a2b5a8a8bUP

SensorUP0VSensor
0V

DATA

DATA

CLOCK

CLOCK

T+T–Brown/
GreenBlueWhite/
GreenWhite

Gray

Pink

VioletYellow

Brown

Green

Cable shield connected to housing
UP = Power supply; T = Temperature
Sensor: The sensor line is connected in the encoder with the corresponding power line.
Vacant pins or wires must not be used.

4

Product Information ECN 1313/ECN 1325/ERN 1387

7/2017

ERN 1387 pin layout
17-pin coupling orflange socket M23

14-pin PCB connector

Voltage supply

Incremental signals

71

104

1115

1612

133

21b7a5b3a/

6b2a3b5a4b4aUP

Sensor
UP0V

Sensor0V

Internal
shield

A+

A–

B+B–

R+R–Brown/
GreenBlueWhite/
GreenWhite/

Green/Black

Yellow/
Black

Red

Black

Blue/Black Red/Black

Other signals
141798567b1a2b6a/

/

C+

C–

D+

D–

T+1)

T–1)

GrayPinkYellow

VioletGreenBrown

Cable shield connected to housing;
UP = Power supply; T = Temperature
Sensor: The sensor line is connected internally with the corresponding power line.
Vacant pins or wires must not be used.
1)

Only for cables inside the motor housing

Product Information ECN 1313/ECN 1325/ERN 1387

7/2017

5

HEIDENHAIN measuring equipment

PWM 20Together with the ATS adjusting andtesting software, the PWM 20 phase angle
measuring unit serves for diagnosis andadjustment of HEIDENHAIN encoders.

PWM 20Encoder input• EnDat 2.1 or EnDat 2.2 (absolute value with or without
incremental signals)• DRIVE-CLiQ• Fanuc Serial Interface• Mitsubishi high speed interface• Yaskawa Serial Interface• Panasonic serial interface• SSI• 1 VPP/TTL/11 µAPP
• HTL (via signal adapter)

InterfaceUSB 2.0

Voltage supply

AC 100 V to 240 V or DC 24 V

Dimensions

258 mm x 154 mm x 55 mm

ATSLanguages

Choice between English and German

Functions• Position display• Connection dialog• Diagnostics• Mounting wizard for EBI/ECI/EQI, LIP 200, LIC 4000and others• Additional functions (if supported by the encoder)• Memory contents

System requirements
and recommendations

PC (dual-core processor > 2 GHz)
RAM > 2 GB
Operating system: Windows XP, Vista, 7, 8, 10 (32-bit/64-bit)
200 MB free space on hard disk

For more information, see the PWM 20/
ATS Software Product Information
document.

DRIVE-CLiQ is a registered trademark of SIEMENS AG.

6

Product Information ECN 1313/ECN 1325/ERN 1387

7/2017

PWT 100
The PWT 100 is a testing device forchecking the function and adjustment of
incremental and absolute HEIDENHAIN
encoders. Thanks to its compact dimensions
and robust design, the PWT 100 is ideal formobile use.

You can find more information in the
Product Information PWT 100.

PWT 100
Encoder input
Only for HEIDENHAINencoders• EnDat• Fanuc Serial Interface• Mitsubishi High Speed Interface• Panasonic Serial Interface• Yaskawa Serial Interface• 1 VPP• 11 µAPP• TTL

Display4.3” color flat-panel display (touch screen)

Voltage supply

DC 24 VPower consumption: max. 15 W

Operating temperature

0 °C to 40 °C

Protection EN 60 529

IP20Dimensions

 145 mm x 85 mm x 35 mm

Test cable for connection to PWM 20/PWT 100
AGK ERN 1387 Ø 4.5 mm PUR (with shield crimping Ø 6 mm);
PCB connector (with shield strain relief, 14-pin/D-sub connector(male), 15-pin incl. three 14-pin adapter connectors

2m2xAWG
30/71118892-02

AGK ECI 11xx/ECI 13xx/EQI 11xx/EQI 13xx/ExN 11xx/
ExN 13xx, Ø 4.5 mm EPG (with Ø 6 mm shield crimping;
PCB connector with strain relief, 12-pin/D-sub connector (male),15-pin incl. 3 adapter connectors, 12-pin and 3 adapter connectors,
15-pin2m2xAWG
30/7621742-01

DR. JOHANNES HEIDENHAIN GmbH
Dr.-Johannes-Heidenhain-Straße 583301 Traunreut, Germany{ +49 8669 31-0
| +49 8669 32-5061
E-mail: info@heidenhain.dewww.heidenhain.de1085677 · 03 · A · 02 · 7/2017 · PDF

This Product Information supersedes all previous editions, which thereby become invalid.
The basis for ordering from HEIDENHAIN is always the Product Information document
edition valid when the order is made.

For more information:
Comply with the requirements described in the following documents to ensure thecorrect operation of the encoder:• Brochure: Position Encoders for Servo Drives• Brochure: Rotary Encoders• Brochure: Interfaces of HEIDENHAIN Encoders