Extension module - PSR-M-EM6-HTL2-SC

Safe extension module for monitoring zero-speed, speed, direction of rotation, monitoring of 2 axes, NPN/PNP proximity switch, 2 x HTL encoder, TBUS interface, up to SIL 3, Cat. 4/PL e, pluggable screw terminal block, TBUS connector included


Product Details

The configurable and individually scalable PSRmodular safety system is a flexible safety solution for monitoring your machine or system. The safe extension module is used to monitor downtimes, speed, and direction of rotation. The module is suitable for connection of NPN/PNP proximity switches and HTL encoders.

Product type Safety device
Application Over-speed safety relay
Zero-speed safety relay
Monitoring the direction of rotation
Insulation characteristics
Protection class III
Overvoltage category III
Response time see user manual
Restart time min. 5 s (Boot time)
max. 10 s (Boot time)

Maximum power dissipation for nominal condition 3.22 W (UB = 28.8 V, IN1 = IN2 = 50 mA, UENC = 30 V)
Nominal operating mode 100% operating factor
Interfaces DIN rail TBUS for connection to the master module, supplied as standard
Proximity switches
Designation A1/A2
Rated control circuit supply voltage US 19.2 V DC ... 28.8 V DC
Rated control circuit supply voltage US 24 V DC -20 % / +20 % (provide external protection, typically 1 A)
Rated control supply current IS typ. 50 mA
Power consumption at US typ. 1.2 W
Inrush current 3.5 A (Δt = 1 ms at Us)
Filter time typ. 20 ms (in the event of voltage dips at Us)
Protective circuit Serial protection against polarity reversal
Suppressor diode
Rated insulation voltage 250 V AC
Rated surge voltage/insulation Basic insulation 4 kV between 24 V power supply and I/Os to the housing

Input name Proximity switch inputs
Description of the input NPN / PNP (3- or 4-wire)
Number of inputs 2
Input voltage range "0" signal 0 V DC ... 5 V DC (NPN)
16 V DC ... 28.8 V DC (PNP)
Input voltage range "1" signal 16 V DC ... 28.8 V DC (NPN)
0 V DC ... 5 V DC (PNP)
Input current range "0" signal < 2 mA (NPN)
Precision 5 % (in reference to the parameterized limit value)
Limit frequency max. 5 kHz
Max. permissible overall conductor resistance 150 Ω
Protective circuit Suppressor diode
Current consumption typ. 13 mA (NPN, at US)
typ. -13 mA (PNP, at Us)
max. 17 mA (NPN, at 28.8 V DC)
max. -15 mA (PNP, at 28.8 V DC)
Input name Encoder inputs
Description of the input HTL
IEC 61131-2 Type 2
Number of inputs 2
Precision 5 % (in reference to the parameterized limit value)
Limit frequency max. 300 kHz
Max. permissible overall conductor resistance 150 Ω
HTL Signal form/signal level 11 V ... 30 V (Duty factor trace A, B: 50% ±15%, phase shift trace A, B: 90° ±40°)
Current consumption typ. 12 mA (Per track for US)

Digital: Proximity switch supply (24V/0V)
Short-circuit protection no
Nominal output voltage range 16.7 V DC ... 26.3 V DC (US - 2,5 V)

Connection technology
pluggable yes
Conductor connection
Connection method Screw connection
Conductor cross section solid 0.2 mm² ... 2.5 mm²
Conductor cross-section AWG 24 ... 12
Screw thread M3
Torque 0.5 Nm ... 0.6 Nm

Status display 1 x LED (green), 2 x LED (orange)
6 x LED (yellow)
Operating voltage display 1 x green LED
Indication 2 x LED (red)

Width 22.61 mm
Height 112.58 mm
Depth 114.5 mm

Housing material Polyamide PA non-reinforced
Housing color yellow

Safety data: EN ISO 13849-1
Category 4
Performance level (PL) e
Safety data: IEC 61508 - High demand
Equipment type Type B
Safety Integrity Level (SIL) 3
Probability of a hazardous failure per hour (PFHD) 7,42 x 10-9
Proof test interval 240 Months
Duration of use 240 Months

Ambient conditions
Degree of protection IP20
Min. degree of protection of inst. location IP54
Ambient temperature (operation) -10 °C ... 55 °C (observe derating)
Ambient temperature (storage/transport) -20 °C ... 85 °C
Maximum altitude ≤ 2000 m (Above sea level)
Max. permissible humidity (storage/transport) 95 % (non-condensing)
Max. permissible relative humidity (operation) 95 % (non-condensing)
Shock 10g for Δt = 16 ms (continuous shock, 1000 shocks in each space direction)
Vibration (operation) 10 Hz ... 150 Hz, 2g

Certificate CE-compliant

Mounting type DIN rail mounting
Assembly instructions Observe derating
Mounting position vertical or horizontal

Item number 1105016
Packing unit 1 pc
Minimum order quantity 1 pc
Sales Key C18
Product Key DNA363
GTIN 4055626975207
Weight per Piece (including packing) 196.8 g
Weight per Piece (excluding packing) 173 g
Customs tariff number 85371098
Country of origin IT


ECLASS-9.0 27371819
ECLASS-10.0.1 27371819
ECLASS-11.0 27371819


ETIM 8.0 EC001449


UNSPSC 21.0 39122200

UL Listed

Approval ID: FILE E 238705

cUL Listed

Approval ID: FILE E 238705


Approval ID: RU*-DE*B.00606/20

Functional Safety

Approval ID: Z10 029429 0013

cULus Listed

China RoHS Environmentally friendly use period: unlimited = EFUP-e
No hazardous substances above threshold values

Compatible Products

Your advantages

Cost-effective safety solution with a high level of adaptability to individual requirements
Fast startup, thanks to easy hardware and software configuration
Machine downtimes minimized with comprehensive, easy-to-understand diagnostics
Narrow housing width of just 22.6 mm
Up to Cat. 4/PL e in accordance with EN ISO 13849-1, SIL 3 in accordance with IEC 62061, SIL 3 in accordance with IEC 61508
Suitable for lift applications according to EN 81-20