Leuze 547950

Leuze Safety Relay MSI-SR4B-01, 547950

  • 24 V AC/DC
  • Relay, NO
  • 16 Pin
  • Plastic Housing
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Description

Leuze Safety Relay MSI-SR4B-01, 547950

Leuze  MSI-SR4B-01, 547950

Leuze Safety Relay

With the MSI safety relays, individual safety sensors can be integrated quickly and easily into the safety circuit of machines and systems. The MSI contact extensions are used both as an output extension for OSSDs and for contact multiplication for evaluation units and safety controls.

Safety relay as part of the safety function

The safety function ensures that the drive can be shut down safely at all times – when the sensor is triggered and if a fault is detected. Here, the safety-related part of a control system (SRP/CS) in accordance with ISO 13849-1 is the central component necessary for execution of a safety function. This component evaluates signals coming from the sensors, detects cross-circuits on the sensor side and faults in the contactor. It also ensures safe shutdown of the drive. A safety sensor alone cannot fulfil these tasks – safety sensors are always just part of a safety function. In the simplest case, a safety relay performs the necessary tasks. The safety function is usually triggered by a person. Here, the technology of the safety relay recognizes the signals coming from the sensor and, via the shutdown paths, disconnects the supply voltage to the contactor – and the contactor in turn disconnects the power supply to the drive.

 

Technical Features:-

Basic Data:-

Series MSI-SR4B
Application E-Stop circuits
Optoelectronic protective devices
Position switches (mechanical contacts)
Solenoid switches (reed contacts, equivalent)
Transponder switches (OSSD outputs)

Functions:-

Functions Contactor monitoring (EDM)
Cross circuit monitoring
Start/restart interlock (RES)
Restart Automatic
Manual

Characteristic Parameters:-

SIL 3, IEC 61508
SILCL 3, IEC/EN 62061
Performance Level (PL) e, EN ISO 13849-1
MTTFd 73 years, EN ISO 13849-1
PFHD 2,1E-08 per hour
PFHD, nop = 4800 0.0000000014 per hour
PFHD, nop = 28800 0.0000000045 per hour
PFHD, nop = 86400 0.000000015 per hour
Mission time 20 years, EN ISO 13849-1
Category 4, EN ISO 13849-1
STOP category 0, IEC/EN 60204-1
B10d at DC13 (inductive load) 1,000,000 number of cycles
B10d at AC15 (inductive load) 1,400,000 number of cycles

Electrical Data:-

Protective circuit Fuse on switching output, upstream
Switching frequency, max. 3600 switching cycles/h
Continuous current per current path, max. 3 A
Input current, max. 100 mA
External safeguarding for supply circuit 200 mA delay-action
Permissible input line resistance, max. 30 Ω

Performance Data:-

Supply voltage UB 24 V, AC/DC, -20 … 20 %
Current consumption, max. Without external load
Power consumption, max. 3 W, For 24 V, plus output load

Outputs:-

Number of safety-related switching outputs (OSSDs) 3 Piece(s)

Safety-related Switching Outputs:-

Type Safety-related switching output OSSD
Voltage type AC/DC

Safety-related Switching Outputs 1:-

Switching element Relay, NO

Safety-related Switching Outputs 2:-

Switching element Relay, NO

Safety-related Switching Outputs 3:-

Switching element Relay, NO

Open Circuit:-

Number of outputs, safety-oriented, non-delayed, contact-based 3 Piece(s)
Number of outputs, safety-oriented, delayed, contact-based 0 Piece(s)
Number of outputs, signaling function, non-delayed, contact-based 1 Piece(s)
Max. thermal continuous current Ith, release current paths 6 A

Time Behavior:-

Response time 10 ms
Pickup delay, automatic start 300 ms
Pickup delay, manual start 30 ms
Regression delay 10 ms
Test pulse acceptance, max. 1 ms
Time window for signal sequence monitoring 20 ms

Connection:-

Number of connections 1 Piece(s)

Connection 1:-

Function Connection to device
Type of connection Terminal
Type of terminal Screw terminal
No. of pins 16 -pin

Cable Properties:-

Connection cross sections 0.2 to 2.5 mm²

Mechanical Data:-

Dimension (W x H x L) 22.5 mm x 99 mm x 114.1 mm
Housing material Plastic
Plastic housing PA 66
Electrical contact material Silver alloy
Net weight 170 g
Housing color Gray
Type of fastening Snap-on mounting
Mechanical life time 10,000,000 actuation cycles

Operation and Display:-

Type of display LED
Number of LEDs 4 Piece(s)

Environmental Data:-

Ambient temperature, operation 0 … 55 °C
Ambient temperature, storage -25 … 70 °C

Data Sheet: PDF

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