Siemens SIRIUS 3RM1 Manual page 53

Using device connectors with 3SK safety relays
Multiple 3RM11/3RM13 Failsafe motor starters can be connected in a group for joint safety-
related shutdown by a 3SK safety relay. Safety-related applications up to SILCL 3 to EN
62061, PL e/Cat. 4 to EN ISO 13849-1 can be realized.
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.
3RM1 motor starters are shut down by interrupting the control supply voltage by means of
the 3SK safety relay. For this reason, the control supply voltage must not also be applied to
the 3RM1 motor starters.
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.
With device connectors, up to five Failsafe motor starters can be operated on one 3SK
safety relay. For configuration using 3SK safety relays, also follow the configuration rules in
the manuals for the "3SK Safety Relays"; see Chapter "Further documentation (Page 13)."
The last motor starter in a row must be placed on a device termination connector. This
closes the circuits that were built up with the connectors.
SIRIUS 3RM1 motor starter
Manual, 06/2016, A5E0345285095020A/RS-AE/005
WARNING
WARNING
3.6 Accessories and article number scheme
Description
53