Product Information

EIB 5000
Signal Converters for
Temperature Measurement
in Direct-Drive Motors

06/2023

HEIDENHAIN EIB 5000 signal converters

Signal converters for temperature measurement in direct-drive motors• Reduced cabling• Overload protection of the direct-drive motor through monitoring of all three windings• Faster response behavior to overheating through compensation of the transmission timing behavior of thetemperature measurement (for direct-drive motors from ETEL)• More economical use of the direct-drive motor through operation up to its thermal load limit• Suitability for various encoder interfaces and control platforms
Application
The HEIDENHAIN EIB 5000 series signal
converters enable measurement of thetemperature in direct-drive motors. To doso, the EIB 5000 units process values fromup to three temperature sensors andcompensate for the transmission timing
behavior of the temperature measurement(for direct-drive motors from ETEL). The
maximum determined temperature isrelayed to the upstream control. When thesensor box is used with a HEIDENHAIN
encoder, the processed temperature
values can be transmitted to the upstream
control along with the position data. The
control can use the temperature values tooptimize the regulation of the direct-drive
motor, thus ensuring a rapid shutoff in caseof an overload.

The compensation of the transmission
timing behavior of the temperature
measurement is optimized for direct-drive
motors from ETEL. The EIB 5000 can be
operated together with direct-drive motors
from other manufacturers as well. Pleasecontact HEIDENHAIN for more
information.
EIB 5000 series
The EIB 5000 series includes variants
designed for mounting in an electrical cabinet(IP20) as well as for close-to-application
temperature measurement of a direct drive
motor (IP65/67).

In-situ measurement in a direct-drive motor
EIB 5211

EIB 5281

EIB 5291S

EIB 5291F

The EIB 5181 is optimized for use in anelectrical cabinet in combination with
controls from HEIDENHAIN. The place­ment in an electrical cabinet makes it
possible to use DIP switches in order toconfigure the necessary parameters. Also,
the EIB 5181 offers a universal interface
solution for encoders with 1 VPP, EnDat 2.1,
and EnDat 2.2 interfaces. The encoders
must be connected to the encoder input
using a 25‑pin D‑sub connector, since the
EIB transmits the temperature value tothe control as an analog value.

Installed in an electrical cabinet

Control

EIB 5181

The EIB 5281 is primarily designed for
encoders with the EnDat 2.1 interface inconjunction with HEIDENHAIN controls.
The EIB transmits the temperature to thecontrol as an analog value (PT 1000 emula­tion) along with the information about theinterface, which is determined by theencoder itself. Thanks to the IP65/67 rating,the EIB 5281 can be placed in direct
proximity to the direct drive motor. This
makes it possible to keep the length of theconnecting cables for the temperature
sensors very short. Depending on the typeof direct-drive motor, a special variant of
the EIB 5281 may be required (see Variantsof the EIB 5200). The EIB 5281 can also be
obtained with an additional switching output(see Switching outputs). Please contact
HEIDENHAIN for more information.
The EIB 5211 is primarily designed for
encoders with the EnDat 2.2 interface.
The temperature value is transmitted tothe control digitally in the protocol (if theinterface supports this). The EIB 5211 itself
does not influence the encoder interface.
Not only does the EIB 5211 have a highIP65/67 rating, but its purely digital datatransmission offers numerous important
advantages as well. The transmission
technology is particularly immune to noise
and achieves an increased accuracy of thetemperature evaluation (also see Emulationof PT 1000 behavior). Depending on the typeof direct-drive motor, a special variant of
the EIB 5211 may be required (see Variantsof the EIB 5200). The EIB 5211 can also be
obtained with an additional switching output(see Switching outputs). Please contact
HEIDENHAIN for more information.

The digitized temperature value is trans­mitted from the EIB 5211 to the encoder,and then from the encoder over the interface
to the control. The encoder must havebeen appropriately designed for this typeof operation. Suitable at present are theRCN 2001, RCN 5001, and RCN 8001
series. Please contact HEIDENHAIN for
information about the availability of otherencoders.
The EIB 5291 S and EIB 5291 F combine
the functionality of the EIB 5211 with thedirect connectivity to downstream elec­
tronics with the DRIVE-CLiQ or Fanuc inter­face. For this purpose the two EIB units
have an integrated function for convertingfrom EnDat 2.2 to DRIVE-CLiQ or Fanuc.
Accordingly, an encoder with the ordering
designation EnDat 22 must be used.
Regarding the temperature evaluation andpossibilities for connection, it is the sameas the EIB 5211.
Switching outputs
The EIB 5282 and EIB 5212 have additionalswitching outputs. This makes it possible,
for example, to switch off the direct-drive
motor via the PLC if the temperature signal
cannot be processed directly by thedownstream electronics. Two switching
outputs are supported:• Error (temperature > 130 °C)*
• Warning (temperature > 100 °C)*
• Supply voltage (PELV1)): 0 V to 36 V
• Switching capacity: max. 32 mW• 4-pin M12 flange socket (male)• Cable length: max. 20 m
For more information, please contact
HEIDENHAIN.

Using the EIB 5281 or EIB 5211 withother controls
The EIB 5281 and EIB 5211 do not influence
the encoder interface. This means that theinterface is determined by the connectedencoder, and not by the EIB. Not all controls
or interfaces permit transmission of thetemperature values, so in these cases the
direct-drive motor cannot be switched off
based on the temperature value. However,with the additional switching outputs, theEIB 5282 and EIB 5212 can still be used for
effective switch-off of the direct-drive motor.
In conjunction with the switching outputs,
the EIB 5282 and EIB 5212 can thus be
used with encoders or controls featuring the
Fanuc, Mitsubishi, Panasonic, or Yaskawa
interfaces. With the Fanuc interface, thetemperature values can be transmitted via
the interface for display or diagnostic pur­poses. Using the transmitted temperatureis recommended here for switch-off ofthe direct-drive motor, or as an alternative,
the EIB 5212 with integrated switching
outputs. For more information, pleasecontact HEIDENHAIN.

Temperature sensors

1

2

3

EnDat 2.2
2.2
EnDat 2.1
2.1
1 VPP
SS
*	Default setting; please contact HEIDENHAIN
regarding the availability of other switch-off
thresholds.
1)	For the PELV definition, see General electricalinformation in the Interfaces of HEIDENHAIN
Encoders brochure

DRIVE-CLiQ is a registered trademark of
Siemens AG

Direct-drive motors

2

Product Information EIB 5000    06/2023

Product Information EIB 5000    06/2023

3

Temperature sensors
The EIB 5000 enables simultaneous
evaluation of up to three temperature
sensors. The following sensor types canbe evaluated:• PT 1000• PTC1)• PTC triplet1)• KTY 84-1302)
Temperature evaluation
Based on data from the sensors, thehighest temperature value is determined,
and the transmission timing behavior of
the temperature measurement iscompensated for (for ETEL direct-drive
motors). The resulting value is then relayed
to the control. In this process, the sensor
values are digitized, calculations are
performed, and the determined value isconverted into an equivalent analog output
signal. This signal can be evaluated by thecontrol’s temperature input. With the
EIB 5211 there is no conversion to analog
signals. The digitally determined value istransmitted directly via the purely serial
EnDat 2.2 or Fanuc interface. The evaluationof all three winding temperatures, as
opposed to the evaluation of only one
temperature sensor or PTC triplet sensor,
offers significant advantages in the applica­tion and increases the cost-efficiency:• Overload protection of the direct-drive
motor through monitoring of all threewindings• Faster response behavior to overheating
through compensation of thetransmission timing behavior of thetemperature measurement (for directdrive motors from ETEL)• More economical use of the direct-drive
motor through operation up to its
thermal load limit
1)	In cold state a temperature of 10 °C is output.
In switched state:
EIB 5181, EIB 5281 200 °C
EIB 521x		
250 °CEIB 5291 F		
223 °CEIB 5291 S		
250 °C (if configured for
the PTC, otherwise –300 °C)
2)	Singly, or, in the case of multiple sensors, withshared signal reference at the cathode4

Compensation of the transmission
timing behavior of the temperature
measurement for direct-drive motors
from ETEL
When a direct-drive motor is required tohold a position at standstill, an asymmetriccurrent distribution may arise. This cancause a winding to overload and lead to a
rapid spike in temperature. The simplest
way of detecting such an overload is throughthe use of three switching elements(usually PTC thermistors).
However, because the measurement
location and the affected components arethermally decoupled from each other, thewinding may become overheated before
the switching elements react. Whensensors are used instead of switchingelements, and when the thermal coupling
is known (thermal model), the sudden
spike in temperature can be emulated
through mathematical compensation of
the transmission timing behavior of thetemperature measurement. Switch-off
occurs much earlier, thereby contributing
significantly to protection of the direct-drive
motor. The transmission timing behavior of
the temperature measurement is largely
determined by the thermal coupling between
the sensor and the motor winding, andby the design of the direct-drive motor.
Different types of direct-drive motors
exhibit different time constants. For ETEL
direct-drive motors, the exact time constants
are known. On the EIB 5181 the time
constant can be set using the DIP switches.
For the EIB 5200 the time constant must
be indicated when ordering.

Emulation of PT 1000 behavior
At the control input, the EIB 5181 andEIB 528x emulate the resistance value of a
PT 1000 sensor. In determining the tempe­
rature value, the control must provide aconstant level of current to ensure correctemulation and proper functioning of thecontrol algorithms. The temperature value
is then determined through the drop involtage. If a pulsed current is injected, thenproper functioning cannot be guaranteed(e.g., with the SMx sensor module from
Siemens). The accuracy of the temperatureevaluation is also affected by the cable
length. The EIB 5181 also emulates the
behavior of a PT 1000, but additionally the
DIP switches can be used to reconfigure
it to emulate a KTY84‑130.
Electrical safety
The EIB 5000 features increased insulation
separating the motor sensor inputs fromthe encoder and control connections. The
EIB 5000 temperature sensor inputs exhibit
safe electrical separation from dangerous
electric circuits in accordance withDIN EN 61010‑1 and DIN EN 61800-5-1.
This ensures effective protection of thedownstream electronics.

Monitoring functions
The EIB 5000 uses its analog temperatureconnection and/or the digital temperature
value to output not only the temperature
but fault conditions as well:• Sensor short• Sensor wire breakage• Invalid configuration• Other errors
Power-on behavior
During the initialization phase, the maximum
value is output for the temperature. The
temperature value then levels out at theactual measured value.
Power supply
The supply voltage from the downstream
electronics is passed to the connectedencoder via the EIB. The power required forevaluation of the temperature sensors isdiverted from the incoming supply voltage
by means of galvanic isolation.
EIB 5291 S: As opposed to other EIB 5000
units, here the supply voltage for theencoder and also for the EIB 5291 S is
generated from the 24 V.

Cascading
In certain applications (e.g., gantry motors),
two direct-drive motors may be controlled
by means of a single encoder. To enabletemperature monitoring in both direct-drive
motors, two EIB sensor boxes can be usedin combination. The two sensor boxes must
be properly configured (please contact
HEIDENHAIN). The EIB 5181 is configured
using DIP switches. Cascading is notpossible with the EIB 521x, EIB 5291 S or
EIB 5291 F.

Functional safety
The EIB can be used in safety-related
applications only if functional safety is
supported by the connected encoder. The
characteristics pertaining to functionalsafety are largely determined by theconnected encoder and the downstream
electronics (if required, contact the
manufacturer; the EIB relays the main
characteristics of the encoder). The safe
position is also largely determined by theconnected encoder and the downstream
electronics.
Functional safety (EIB 5291 S)
Additionally true for the EIB 5291 S: The EIB
itself does not influence the safe position.
The “safe position” and “safety-related
measuring step (SM)” of the connected
EnDat encoder are required in order for thesafe position to be calculated. For more
information, please contact the manufac­
turer of the downstream electronics. The
PFH value of the overall system (EIB 5291S +encoder) is the sum of the PFH values of
the EIB 5291 S and the connected encoder.
For information about the encoder, pleaserefer to its documentation (Product

Information document, brochure, andmounting instructions). The EIB 5291 S is
designed for a service life of 20 years (inaccordance with ISO 13849). For more
information about using the EIB and theencoder in safety-related applications,please contact the manufacturer of thedownstream electronics.
After installing and exchanging the encoder,perform an acceptance test of the machinein accordance with the specifications of
the manufacturer. Encoders that havecontributed to the failure of a safety functionin the application must be returned to
HEIDENHAIN Traunreut.

Note:
In order for the EIB 5291 S to be operated
in safety-related applications, the softwaremust be designed in conformity withthe downstream electronics with the
DRIVE‑CLiQ interface. For more infor­
mation on availability, please contact
the manufacturer. Pay attention to theinformation provided by the control
manufacturer regarding its operation insafety-related applications.

EIB 5291 S
Functional safety

Depending on the connected encoder and downstream
electronics, suitable for applications with up to:• SIL 2 as per EN 61508 (further basis for testing: EN 61800-5-2)• Category 3, PL d as per EN ISO 13849-1:2015

PFH

26 · 10–9 (with respect to an operating elevation of  1000 m
above sea level)

Compensation of
the transmission
timing behavior
Increased safetymarginTemperature wire

Variants of the EIB 5200
An appropriate variant of the EIB 5200 may
be needed depending on the direct-drive
motor. Before delivery, the variant is pro­grammed for a particular combination of thefollowing factors:• Configuration of the temperature sensors• Compensation value of the transmission
timing behavior regarding the temperature measurement

RCN
EIB 521x

Time

Combination of an RCN encoder and an EIB 521x signal converter

Product Information EIB 5000    06/2023

Product Information EIB 5000    06/2023

5

EIB 5281
36±0.2



10.5

4.5

M4

7±1

38.5±114.5

98±1

86±0.2

44±1

7.5

X1

X2

2x M4x16 DIN 912 / ISO 4762

EIB 528236±0.2



14.5

10.5

4.5

M4

7±1

38.5±1

EIB 5181

Functional safety

See Functional safety on page 5Interface

Depends on the encoder2)

1 VPP/EnDat 2.1/EnDat 2.2

Ordering designation

Depends on the encoder2)

EnDat01/EnDat02/EnDat22

Electrical connection

17-pin M23 flange socket (female) with coupling ring 25-pin D-sub connector (male)Power supply of encoder

The supply voltage from the downstream electronics is relayed to the connected encoder via the EIB

Cable length3)<6m< 100 mTemperature sensor input

17±1

64±1

17±1

EIB 5281/EIB 5282

Encoder input

Ø
X3

1)

Specifications

Quantity3

Connectable sensors4)

KTY 84-130, PT 1000, PTC, PTC triplet5)

Evaluation accuracy tolerance

Typically: ±1 K; maximum: ±2 K

Time constant for temperature
measurement

Please indicate when ordering

Set using DIP switches

Electrical connection

7-pin M17 flange socket (female)

6-pin header (male)

Cable length6)<6m< 45 m (for the KTY 84-130 and a conductor
cross section of 0.25 mm2)

Ø

44±1

98±1

Control output

X1

86±0.2

44±1

7.5

X4

X3

X2

17±1

64±1

17±1

2x M4x16 DIN 912 / ISO 4762

EIB 5181
 3.2 (2x)

1
3

2
4

X421

X136

X75

31 ±1

33.6
97.3

30

ON
OFF

159 ±2135 ±1

S2

54321

S1

13

S3

54321

X401

54321

165 ±2

15

X108

10.5

100 ±1
107.2 ±26

Product Information EIB 5000    06/2023

Interface

Depends on the encoder

2)

1 VPP/EnDat 2.1/EnDat 2.2

Ordering designation

Depends on the encoder2)

EnDat01/EnDat02/EnDat22

Electrical connection

17-pin M23 flange socket (male)

25-pin D-sub connector (female)

Cable length3)< 50 m<3m

Supply voltage7)

5 V ±10 %5 V ±10 %Power consumption8)

Typically: 200 mW; max. 300 mW

Typically: 250 mW; max. 350 mW

Temperature output

Emulation of PT 1000 behavior

Emulation of PT 1000 or KTY84‑130 behavior9)

Emulation accuracy tolerance10)

Typically: ±3 K; maximum: ±4 K

Typically: ±3 K; maximum: ±4 K

Operating temperature

0 °C to 70 °C

Storage temperature–30 °C to 70 °C

Vibration 55 Hz to 2000 Hz
Shock 11 ms

100 m/s2 (EN 60068-2-6)
300 m/s2 (EN 60068-2-27)

10 m/s (EN 60068-2-6)
30 m/s2 (EN 60068-2-27)

Protection EN 60529

IP65/67 (when engaged)

IP20

Elevation< 2000 m above sea level

Mass 0.5 kg

9)

11)

0 °C to 40 °C11)
11)
2

1)

The EIB 5282 features additional switching outputs (see Switching outputs on page 3)
Optimized for EnDat 2.1, determined by the encoder and relayed by the EIB (see also Using with other controls on page 3)
3)
Applies only to HEIDENHAIN cables; be sure to consider the voltage drop
4)
For more information, see Temperature evaluation and Monitoring functions
5)
Please select when ordering; the EIB 5181 is configured using DIP switches6)	Depends on the expected accuracy, sensor type and conductor cross section; observe any additional information from the
motor manufacturer
7)
Take the supply voltage range of the encoder into account8)
Without power or current consumption of the encoder; version with switching output: additional power consumption of 50 mW
9)
See Emulation of PT 1000 behavior
10)11)Applies to a cable length < 1 m				No condensation; max. humidity of 75 % under continuous operation2)

Product Information EIB 5000    06/2023

7

EIB 5211/EIB 5291 S/EIB 5291 F
36±0.2



10.5

4.5

EIB 5211/5212

EIB 5291 F

Functional safety

See Functional safety on page 5

EIB 5291 S

M4

7±1

38.5±114.5

1)Specifications

Encoder inputØ

98±1

86±0.2

44±1

7.5

X1

X3

17±1

X2

17±1

64±1
2x M4x16 DIN 912 / ISO 4762

36±0.2
4.5

M4

7±1



14.5

10.5

Ø

Ordering designation

Depends on theencoder2) 3)

Electrical connection

12-pin M12 flange socket (female)Power supply of encoder

See Power supply on page 5

Cable length4)<6m

EnDat223)

EnDat223)

DC 8.0 V ±0.4 V (max. 1800 mW)

Quantity3

Connectable sensors5)

KTY 84-130, PT 1000, PTC, PTC triplet6)

Evaluation accuracy tolerance

Typically: ±1 K; maximum: ±2 K

Time constant for temperature
measurement

Please indicate when ordering

Electrical connection

7-pin M17 flange socket (female)

Cable length7)<6m

Control output
44±1

98±1

X3

17±1

X1

86±0.2

44±1

7.5

X4

Depends on the encoder

Temperature sensor input

EIB 521238.5±1

2)

Interface

X2

17±1

64±1
2x M4x16 DIN 912 / ISO 4762

Interface

Depends on the2)encoder

Fanuc

DRIVE-CLiQ

Ordering designation

Depends on theencoder2)

Fanuc05

DQ01

Electrical connection

8-pin M12 flange socket (male)

Cable length4)< 100 mSupply voltage8)

3.6 V to 14 V

Power consumption

Typically: 160 mW;
max. 210 mW9)< 30 m< 95 m
DC 24 V (16.0 V to 28.8 V); up to DC 36.0 V
possible without compromising functional safety

Typically: 750 mW;
max. 1000 mW9)

Maximum At 16.0 V: ≤ 3300 mW		
At 28.8 V: ≤ 3400 mW
Typically At 24.0 V: ≤ 1100 mW + 1.15 · PMtyp(PMtyp = Typical power consumption of the encoder)

Further information:
For detailed descriptions of cables,
please refer to the Cables and Connectors
brochure.

10)

0 °C to 60 °C10)

Operating temperature

0 °C to 70 °C

Storage temperature–30 °C to 70 °C

Vibration 55 Hz to 2000 Hz
Shock 11 ms

100 m/s2 (EN 60068-2-6)
300 m/s2 (EN 60068-2-27)

Protection EN 60529

IP65/67 (when engaged)

Elevation< 2000 m above sea level

Mass 0.5 kg

10)

1)

	The EIB 5212 features additional switching outputs(see Switching outputs on page 3)
2)
	Optimized for EnDat 2.2, determined by the encoder and relayedby the EIB (see also Using with other controls on page 3)3)	The encoder must be designed for connection of the EIB 521x
or the EIB 5291 S
4)	Applies only to HEIDENHAIN cables; be sure to consider thevoltage drop

8

Product Information EIB 5000    06/2023

Product Information EIB 5000    06/2023< 1000 m above sea level5)	For further information, please refer to Temperature evaluationand Monitoring functions
6)
Please select when ordering
7)
Observe the information from the motor manufacturer
8)
Take the supply voltage range of the encoder into account9)	Without power or current consumption of the encoder (version
with switching output: additional power consumption of 50 mW)
10)
No condensation; max. 75% humidity in continuous operation

9

Directives and standards

Directives
The EIB 5000 meets the requirements ofthe following directives:
EU
2006/42/EC (EIB 5291 S only)
2014/30/EU
2011/65/EU
UK
SI 2008 No. 1597 (EIB 5291 S only)
SI 2016 No. 1091
SI 2012 No. 3032

Standards
Emission
EIB 5181
EIB 52xx

EN 50370-1
EN 61000-6-4

Immunity
EIB 5181
EIB 52xx
EIB 5291 S

EN 50370-2
EN 61000-6-2
additionally EN 61800-5-2

Product standard for adjustable speed
electrical power drive systems
EN 61800-5-1
Standard for electrical equipment formeasurement
EN 61010-1
NRTL
UL 61010-1
CAN/CSA-C22.2 No. 61010-1

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

1309514 · 03 · A · 02 · 06/2023 · PDF

This Product Information document 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 placed.
Further information:
To ensure proper and intended use, comply with the specifications in the following
documents:• Brochure, Product Information, and Mounting Instructions of the connected encoder• Technical Information: Safety-Related Position Measuring Systems
596632-xx• Operating Instructions: EIB 518x, EIB 521x, EIB 528x, EIB 528x, EIB 5291 F 1386382-xx• Operating Instructions: EIB 5291 S
1390004-xx• Installation Instructions: EIB 5000
1386395-xx