Product Information

ECN 1324 S
EQN 1336 S
Absolute Rotary Encoders
with DRIVE-CLiQ Interface
for Safety-Related
Applications
Firmware 5306/2022

ECN 1324 S, EQN 1336 S
Rotary encoders for absolute position values with safe singleturn information• 65 mm installation diameter• 07B expanding ring coupling• 65B tapered shaft

Required mating dimensions

A = Bearing of mating shaft
M1 = Measuring point for operating temperature
M2 = Measuring point for vibration (see D741714)
1 = Clamping screw for coupling ring: width A/F 2; tightening torque: 1.25 Nm –0.2 Nm
2 = Die-cast cover
3 = Screw plug: widths A/F 3 and 4; tightening torque: 5 Nm +0.5 Nm
4 = 16-pin header (12+4-pin)
5 = Screw: DIN 6912 – M5x50 – 08.8 – MKL; width A/F 4; tightening torque: 5 Nm +0.5 Nm
6 = M10 back-off thread
7 = Compensation of mounting tolerances and thermal expansion; no dynamic movement permitted
8 = Chamfer at start of thread is mandatory for material bonding anti-rotation lock
9 = Direction of shaft rotation for ascending position values

2Product Information ECN 1324 S, EQN 1336 S    06/2022

Specifications

ECN 1324 S singleturn

EQN 1336 S multiturn

Functional safety
for applications with up toAs a single-encoder system for monitoring and closed-loop functions• SIL 2 as per EN 61508 (further basis for testing: IEC 61800-5-3)• Category 3, PL d, according to EN ISO 13849-1:2015
Safe in the singleturn rangePFH1)

 27 · 10–9 (probability of dangerous failure per hour)

Safe position2)

Encoder: ±1.76° (safety-related measuring step: SM = 0.7°)
Mechanical coupling: ±2° (fault exclusion for loosening of the shaft coupling and stator coupling,
designed for accelerations of  300 m/s2)

Interface/ordering designation

DRIVE-CLiQ / DQ01

Firmware01.32.26.53

SINAMICS, SIMOTION 3)

 V4.4 HF4SINUMERIK with safety 3)

 V4.4 SP2

SINUMERIK without safety 3)

 V4.4 SP1 HF3Position values per revolution

16 777 216 (24 bits)

Revolutions–Calculation time
TIME_MAX_ACTVAL4)

 8 µsSystem accuracy±20”

Electrical connection

PCB connector: 16-pin (12+4-pin), with connection for an external temperature sensor5)

Cable length< 40 m (for the calculation, see the Cables and Connectors brochure)Supply voltage

DC 24 V (10 V to 28.8 V); up to DC 36.0 V possible without compromising functional safety

Power consumption6) (maximum)

At 10 V:  950 mW; at 28.8 V:  1000 mW

At 10 V:  1050 mW; at 28.8 V:  1150 mW

Current consumption (typical)

At 24 V: 38 mA (without load)

At 24 V: 43 mA (without load)

Shaft

Tapered shaft (¬ 9.25 mm); taper: 1:10Shaft speed 15 000 rpm (at  2 position requests per rev.)

Starting torque (typical)

0.01 Nm (at 20 °C)

Moment of inertia of rotor

2.6 · 10–6 kgm2

Angular acceleration of rotor 1 · 105 rad/s2

Natural frequency of the stator
coupling (typical)

1800 Hz

Axial motion of measured shaft

 ±0.5 mm

4096 (12 bits)

 12 000 rpm (at  2 position requests per rev.)1)

For use at  1000 m above sea level ( 6000 m above sea level upon request)
Further tolerances may arise in the downstream electronics after position value comparison (contact mfr.)3)	See Siemens document “Certified encoders with DRIVE-CLiQ Dependencies on SIMOTION / SINUMERIK and SINAMICS Hardware
and Software versions”
4)	The calculation time TIME_MAX_ACTVAL specifies the time after which data transfer from the encoder to the control can start within
the current-regulator clock time5)
See Temperature measurement in motors in the Encoders for Servo Drives brochure6)
See General electrical information in the Interfaces of HEIDENHAIN Encoders brochure
2)

DRIVE-CLiQ is a registered trademark of Siemens AG

Product Information ECN 1324 S, EQN 1336 S    06/2022

3ECN 1324 S, EQN 1336 S
Rotary encoders for absolute position values with safe singleturn information• 65 mm installation diameter• 07B expanding ring coupling• 67M blind hollow shaft for axial clamping
Specifications

ECN 1324 S singleturn

Vibration 55 Hz to 2000 Hz
Shock 6 ms

 300 m/s2 (EN 60068-2-6); 10 Hz to 55 Hz constant over 4.9 mm peak to peak
 2000 m/s2 (EN 60068-2-27)

Operating temperature–40 °C to 100 °C

Trigger threshold of exceeded
temperature error message

117 °C in the scanning ASIC (measuring accuracy of internal temperature sensor: ±2 K at 117 °C)

Relative humidity

 93% (40 °C/21 d as per EN 60068-2-78), condensation excluded

Protection rating EN 60529

IP40 (read about insulation under Electrical safety in the Interfaces of HEIDENHAIN Encoders
brochure; contamination from the ingress of fluids must be avoided)Mass 0.3 kg

ID number

1179144-02
1179144-521)

1)

EQN 1336 S multiturn

1179145-03

In collective package

Required mating dimensions

 = Bearing of mating shaft
M1 = Measuring point for operating temperature
M2 = Measuring point for vibration (see D741714)
1 = Clamping screw for coupling ring: width A/F 2; tightening torque: 1.25 Nm –0.2 Nm
2 = Die-cast cover
3 = Screw plug: widths A/F 3 and 4; tightening torque: 5 Nm +0.5 Nm
4 = 16-polig (12+4-polig) PCB connector
5 = Screw: DIN 6912 – M5x25 – 08.8 – MKL; width A/F 4; tightening torque: 5 Nm +0.5 Nm
6 = Compensation of mounting tolerances and thermal expansion; no dynamic movement permitted
7 = Chamfer at start of thread is obligatory for material bonding anti-rotation lock
8 = Direction of shaft rotation for ascending position values4

Product Information ECN 1324 S, EQN 1336 S    06/2022

Product Information ECN 1324 S, EQN 1336 S    06/2022

5Specifications

ECN 1324 S singleturn

EQN 1336 S multiturn

Functional safety
for applications with up toAs a single-encoder system for monitoring functions and closed-loop functions• SIL 2 as per EN 61508 (further basis for testing: IEC 61800-5-3)• Category 3, PL d, according to EN ISO 13849-1:2015
Safe in the singleturn range

Specifications

ECN 1324 S singleturn

Vibration 55 Hz to 2000 Hz
Shock 6 ms

 300 m/s2 (EN 60068-2-6); 10 Hz to 55 Hz constant over 4.9 mm peak to peak
 2000 m/s2 (EN 60068-2-27)

Operating temperature–30 °C to 100 °C

Trigger threshold for exceeded
temperature error message

117 °C in the scanning ASIC (measuring accuracy of internal temperature sensor: ±2 K at 117 °C)

Relative humidity

 93% (40 °C/21 d as per EN 60068-2-78), condensation excluded

Protection rating EN 60529

IP40 (read about insulation under Electrical safety in the Interfaces of HEIDENHAIN Encoders
brochure; contamination from the ingress of fluids must be avoided)

PFH1)

 27 · 10–9 (probability of dangerous failure per hour)

Safe position2)

Encoder: ±1.76° (safety-related measuring step: SM = 0.7°)
Mechanical coupling: ±2° (fault exclusion for loosening of the shaft coupling and stator coupling,
designed for accelerations of  300 m/s2)

Interface/ordering designation

DRIVE-CLiQ / DQ01

Firmware01.32.26.53

Mass 0.3 kg

SINAMICS, SIMOTION 3)

 V4.4 HF4ID number

1179144-04

SINUMERIK with safety 3)

 V4.4 SP2

SINUMERIK without safety 3)

 V4.4 SP1 HF3Position values per revolution

16 777 216 (24 bits)

Revolutions–Calculation time
TIME_MAX_ACTVAL4)

 8 µsSystem accuracy±20”

Electrical connection

PCB connector: 16-pin (12+4-pin); with connection for an external temperature sensor5)

Cable length< 40 m (for the calculation, see the Cables and Connectors brochure)Supply voltage

DC 24 V (10 V to 28.8 V); up to DC 36.0 V possible without compromising functional safety

Power consumption6) (maximum)

At 10 V:  950 mW; at 28.8 V:  1000 mW

At 10 V:  1050 mW; at 28.8 V:  1150 mW

Current consumption (typical)

At 24 V: 38 mA (without load)

At 24 V: 43 mA (without load)

Shaft

Blind hollow shaft for axial clamping (¬ 12.7 mm)

Shaft speed 12 000 rpm (at  2 position requests per rev.)

Starting torque (typical)

0.01 Nm (at 20 °C)

Moment of inertia of rotor

3.6 · 10–6 kgm2

Angular acceleration of rotor 5 · 104 rad/s2

Axial motion of measured shaft

 ±0.5 mm

EQN 1336 S multiturn

1179145-04

4096 (12 bits)

1)

For use at  1000 m above sea level ( 6000 m above sea level upon request)
Further tolerances may arise in the downstream electronics after position value comparison (contact mfr.)3)	See Siemens document “Certified encoders with DRIVE-CLiQ Dependencies on SIMOTION / SINUMERIK and SINAMICS Hardwareand Software versions”
4)	The calculation time TIME_MAX_ACTVAL specifies the time after which data transfer from the encoder to the control can start within
the current-regulator clock time5)
See Temperature measurement in motors in the Encoders for Servo Drives brochure6)
See General electrical information in the Interfaces of HEIDENHAIN Encoders brochure
2)

DRIVE-CLiQ is a registered trademark of Siemens AG

6

Product Information ECN 1324 S, EQN 1336 S    06/2022

Product Information ECN 1324 S, EQN 1336 S    06/2022

7

MountingIntegrated temperature evaluation

The shaft of the rotary encoder is pressed
onto the motor’s drive shaft and fastenedwith a central screw. It is particularly
important to ensure that the positivelocking element of the stator coupling
securely engages the corresponding slot in
the measured shaft. Use a central screw
with material-bonding anti-rotation lock(see Mounting accessories). The stator
coupling is clamped by means of an axiallytightenable screw in a locating hole.

These rotary encoders feature atemperature sensor integrated into theencoder electronics and an evaluation
circuit for an external temperature sensor.
In both cases, the respective digitized
temperature value is transmitted purely
serially via the DRIVE-CLiQ interface.
Please bear in mind that neither thetemperature measurement nor thetransmission of the temperature value
is safe in terms of functional safety.
More information:
For the customer-side mounting
design, the material specifications forsteel apply to the customer-side shaft.
For the customer-side stator, thematerial specifications for aluminum
apply.
In addition, take into account the othermaterial properties in the Encoders forServo Drives brochure (ID 208922-xx).

Mounting accessories
ScrewsScrews (central screw, mounting screws) are not included in delivery and can be orderedseparately.
ECN 1324 S,
EQN 1336 S

1)Central screws for fastening the shaft

ID 202264-54 10 or 100

For hollow shaft 67M

ID 202264-55

1)

Upon reaching a trigger threshold for theinternal temperature sensor, these rotary
encoders issue an “Alarm 405” error
message. This threshold may varydepending on the encoder and is stated in
the specifications. During operation, it isrecommended that the temperature bekept adequately below the error-message
threshold.
The encoder’s intended use requires
compliance with the operating temperature
at measuring point M1.

The PT 1000 or, for example, theKTY 84-130 semiconductor sensor is
to be used. For a PT 1000, the following
values apply with regard to the accuracyof the evaluation circuit:		
±6 K at –40.0 °C to 80 °C		
±4 K at80.1 °C to 160 °C	  and ±6 K at 160.1 °C to 200 °C
For a KTY 84-130 semiconductor sensor,
the following values apply with regard tothe accuracy of the evaluation circuit:		
±6 K at –40.0 °C to 80 °C		
±2 K at80.1 °C to 160 °C	  and ±6 K at 160.1 °C to 200 °C
The temperature values are transmitted via
the DRIVE‑CLiQ protocol.
The temperature sensor used is adjustable
via Parameter 601 in the configuration
software (e.g., Starter software) of thedrive.

Lot size

For tapered shaft 65B DIN 6912 – M5×50 – 08.8 – MKL
DIN 6912 – M5×25 – 08.8 – MKL

The temperature measured by the internal
temperature sensor is higher by a devicespecific and application-specific amountthan the temperature at measuring point
M1, as shown in the dimension drawing.

Temperature measurement in motors
To protect a motor from overloading, themotor manufacturer usually installs atemperature sensor in close proximity
to the motor winding.

DRIVE-CLiQ is a registered trademark of
Siemens AG

With coating for material bonding anti-rotation lock

Please note the information on screws from HEIDENHAIN in the Encoders for ServoDrives brochure, under the heading Rotary encoders with functional safety in the chapter
General mechanical information.
Mounting aid
To avoid damage to the cable, use the mounting aid to connect and disconnect the cable
assembly. The pulling force must be applied solely to the connector and not to the wires.
ID 1075573-01
For further mounting information and mounting aids, please refer to the relevant
mounting instructions and the Encoders for Servo Drives brochure.

8Product Information ECN 1324 S, EQN 1336 S    06/2022

Product Information ECN 1324 S, EQN 1336 S    06/20229Electrical connection

Pin layout
16-pin (12+4-pin) PCB connector
12ba4123456

12Power supply12+41)2)

1b6a1)

Serial data transmission

Other signals

3a4b6b1a2b5a1a2)

1b 2)

2a/2bUP0V

RXP

RXN

TXP

TXN

T+T–/

Only with adapter cables inside the motor housing
Connections for external temperature sensor; evaluation optimized for KTY 84-130/PT 1000 (see Temperature measurement in motors
in the Encoders for Servo Drives brochure)

Cable shield connected to housing; UP = Power supply voltageVacant pins or wires must not be used!
Output cables with a cable length > 0.5 m require strain relief for the cable

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

1380392 · 00 · A · 02 · 06/2022 · 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.

More information:
Comply with the requirements described in the following documents to ensure correctand intended operation:• Operating Instructions				
1380044-xx