Extension module - PSR-M-EF7-SAI4-SC

Safe extension module with 4 safe analog inputs, 0 V ... 10 V; 0 mA or 4 mA ... 20 mA; TBUS interface, up to Cat. 4/PL e, SIL 3, plug-in 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 provides the system with additional safe analog inputs.

Product type Safety device
Application Analog IN
Insulation characteristics
Protection class III
Overvoltage category II
Response time see user manual
Restart time min. 5 s (Boot time)
max. 10 s (Boot time)

Maximum power dissipation for nominal condition 2.76 W (with max. permissible load)
Nominal operating mode 100% operating factor
Interfaces DIN rail TBUS for connection to the master module, supplied as standard
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 % (external fuse, typically 6 A)
Rated control supply current IS typ. 82 mA (without sensor supply)
typ. 212 mA (with sensor supply)
Power consumption at US typ. 1.96 W (without sensor supply)
typ. 5.08 W (with sensor supply)
Inrush current max. 14 A (Δt = 1 ms at Us)
Filter time typ. 5 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 all current paths and housing
Electrical isolation, 0.5 kV functional insulation between logic and analog inputs and between the analog inputs

Protective circuit Overload protection of the current inputs; Suppressor diode
Input name IN S1, IN S2, IN S3, IN S4
Description of the input Safety-oriented analog inputs, configurable as current or voltage inputs, galvanically isolated
Number of inputs 4
Connection technology 2-conductor, 3-conductor or 4-conductor (2-conductor sensor signal + 2-conductor sensor supply)
Note regarding the connection technology shielded
Scanning rate 2.5/5/10/16.6/20/50/60/100/200/400/800/1000/2000/4000 Hz
Current input signal 0 mA ... 25 mA (Measuring range)
0 mA ... 20 mA (Configurable measuring range with diagnostics range 20.1 mA ... 23 mA)
4 mA ... 20 mA (Configurable measuring range with diagnostics range 20.1 mA ... 23 mA (upper limit), 2.5 mA ... 3.8 mA (lower limit))
Voltage input signal 0 V ... 12 V (Measuring range)
0 V ... 10 V (Configurable measuring range with diagnostics range 10.05 V ... 11.5 V (upper limit), 0.1 V (lower limit))
Max. permissible current max. 35 mA (as current input)
Permissible voltage max. 24 V (as current input)
max. 14 V (as voltage input)
Input resistance current input 290 Ω ±25 % (incl. internal protective circuit)
Input resistance of voltage input 185 kΩ ±25 %
A/D converter resolution 16 bit
Resolution (current) 381 nA
Resolution (voltage) 152 µV
Precision typ. ± 2 % (as current input, relative to the measuring range final value)
max. ± 2.5 % (as current input)
typ. ± 1 % (as voltage input, relative to the measuring range final value)
max. ± 1.5 % (as voltage input)
Temperature coefficients typ. ± 0.07 %/K
max. ± 0.07 %/K
Limit frequency (3 dB) 160 Hz (RC low pass, 1st order, as current input)
4 Hz (RC low pass, as voltage input)
Frequency see user manual
Permissible cable length max. 100 m (per input)
Protective circuit Suppressor diode
Overload protection of the current inputs
Overload protection of the voltage inputs

Sensor supply: OUT S1/0V ...OUT S4/0V
Description Sensor supply voltage per analog input
Supply voltage 24 V DC ±3 %
Current max. 30 mA (Sensor current recording per channel)
Short-circuit-proof yes
Protective circuit Overload protection Overload detection at  38 mA

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 4x LED (yellow, red)
Operating voltage display 1 x green LED

Width 22.61 mm
Height 112.58 mm
Depth 113.6 mm

Housing material Polyamide PA non-reinforced
Housing color yellow

Safety data
Stop category 0
Safety data: EN ISO 13849
Performance level (PL) e (2-channel wiring)
d (1-channel wiring)
Safety data: IEC 61508 - High-demand for 2-channel wiring
Equipment type Type B
Safety Integrity Level (SIL) 3
Probability of a hazardous failure per hour (PFHD) 1,53 x 10-8
Proof test interval 240 Months
Duration of use 240 Months
Integrity requirement IEC 61508 - High-demand for 1-channel wiring
Equipment type Type B
Safety Integrity Level (SIL) 2
Probability of a hazardous failure per hour (PFHD) 1,53 x 10-8
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

Conformance CE-compliant

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

Item number 1104985
Packing unit 1 pc
Minimum order quantity 1 pc
Sales Key C18
Product Key DNA362
GTIN 4055626971063
Weight per Piece (including packing) 211.2 g
Weight per Piece (excluding packing) 160 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


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

Functional Safety

Approval ID: Z10 029429 0013

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

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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 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