Typical circuits
A.2 Typical circuits for safety-related shutdown
SIRIUS 3RM1 motor starter
Manual, 06/2016, A5E0345285095020A/RS-AE/005
175
Loss of the safety function
In continuous operation, the key safety values apply in the case of a function test interval
(state change of the outputs) ≤ 1 year.
• Actuate the connected sensors.
• Check their effect on the safety relay and the downstream actuators.
• Activate the safety relay via the connected sensors.
• Check their effect on the safety relay and the downstream actuators.
• Defective devices must be replaced.
Loss of the safety function in the event of a fault in the case of 3RM11 / 3RM13 Failsafe
motor starters with 110 to 230 V AC/110 V DC control supply voltage.
Can cause death or serious injury.
The control signal for the control inputs in the case of 3RM11/3RM13 Failsafe motor
starters with 110 to 230 V AC control supply voltage must come from A1. Otherwise, the
safety function is bypassed in the event of a fault. Thus, only relay outputs are admissible
when using a PLC.
Do not use a separate control voltage. Only use the relay outputs when using a PLC.
Loss of the safety function when using device connectors.
Can cause death or serious injury.
When the product is operated with a 3SK safety relay and a device connector, the supply
voltage for 3RM1 motor starters is fed in via the device connectors.
In this case, do not connect anything to terminals A1 and A2 of the 3RM1 motor starters, in
order to prevent bypassing of the safety function.
Loss of the safety function during hybrid operation of Failsafe and Standard motor starters.
Can cause death or serious injury.
Hybrid operation of 3RM10/3RM12 Standard motor starters with 3RM11/3RM13 Failsafe
motor starters in safety-related applications is not admissible.
Only ever use safety-related motor starters (3RM11 Failsafe and 3RM13 Failsafe) in safety-
related applications.
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