Description
3.5 Functions
SIRIUS 3RM1 motor starter
Manual, 11/2013, A5E0345285095020A/RS-AB/002
35
These devices are maintenance-free.
Repairs to the device may only be carried out by the manufacturer.
To meet the conditions of the warranty, you must observe the safety and commissioning
instructions.
You will find further information on the Internet at
● Internet (http://www.siemens.com/sirius)
● Information and Download Center (http://www.siemens.com/sirius/infomaterial)
● Product and Information System (ProdIS) (http://www.siemens.com/sirius/support)
● Service and Support (http://www.siemens.com/sirius/technical-assistance)
● Certificates (http://www.siemens.com/sirius/approvals)
Shutdown on malfunction
Shutdown via integrated monitoring
The 3RM1 motor starter has integrated monitoring of the main circuit components. During
operation, the 3RM1 motor starter detects when a switching element fails to switch, or when
a phase has failed.
Monitoring before switching on in the case of 3RM11/3RM13 Failsafe motor starters
In the case of the 3RM11 Failsafe and 3RM13 Failsafe motor starters, monitoring prevents
the load from switching on in the case of the following malfunctions:
● Damage to the power semiconductors
● Damage to the relay contacts
● Faults in the control electronics
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