Electrical connection
Leuze electronic
ML2R-SR4
11
6
Electrical connection
The following must be observed for the current supply of the safety relay:
• Supply voltage 24 V DC ±20 %.
• Safe mains separation acc. to EN/IEC 60742 possible.
• A corresponding power supply unit handles interruptions of the supply voltage up to 10 ms in dura
-
tion acc. to EN/IEC 61496-1.
The following conditions apply for the electrical connection:
• The safety relay is to be integrated in the control acc. to ISO 13849-1.
• No safety-relevant signals are switched via the message outputs.
• There are always two switching contacts integrated in the system switch-off circuit.
• Relay switching contacts are fused/protected externally according to their specifications (see
6.1
Circuit plan
Figure 6.1: Circuit plan – ML2R-SR4
DANGER
Risk of death by electric shock!
Depending on external wiring, dangerous voltages may be present at the switching outputs.
During all work at the electrical system or electronics, make certain that each voltage supply has been
interrupted and protected against being restarted.
WARNING
Improper electrical connection may result in serious injury!
Only allow competent persons to perform the electrical connection.
Make certain that supply and signal lines are laid separately from power lines.
Use appropriate spark extinction for contactors in the cabinet.
Observe the installation notices and operating instructions of the products that are to be connected via
the safety relay (drive motors, brakes, etc.).
PE
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MLD530 - Betriebsart 5
13
42
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electronic
24V
S12
2 A
O
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D
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4
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S31
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23
S22
34
14
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24
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PE
PK
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CB-M12-2000E-8GF
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CompactPlus
Hirschmann CB-LDH-xxxxx-12GF
Hirschmann CB-LDH-xxxxx-12GF
or 1,5mm²
D
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N
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33
IV
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BN
S35
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MSI-SR4B-02
24V
41
