Description
3.5 Functions
SIRIUS 3RM1 motor starter
40 Manual, 06/2016, A5E0345285095020A/RS-AE/005
Setting the rated motor operational current
Set the 3RM1 motor starter to the rated motor operational current (according to the type
plate or design test certificate of the motor).
On this topic, refer to the Chapter "Setting the rated operational current (Page 126)".
Note
Observe the trip class or the tripping characteristic of the 3RM1 motor starter in Chapter
"
Overload protection/device protection characteristic (Page 145)". The motor and cables
must be designed for the selected trip class.
Note
Restriction in the hazardous area
In applications for the protection of motors in hazardous a
reas, a 3RM11/3RM13 Failsafe
motor starter may only be operated with the "Manual RESET" setting. The "RESET Mode"
LED must be off.
Short-circuit protection must be handled by separately arranged overcurrent protection
devices.
On this topic, refer to the Chapter "Load feeders - protection against short circuit (Page 69)".
Avoid impermissibly high cable surface temperatures by correctly dimensioning the cross
sections. Select an adequate cable cross-section.
Cyclic test of the protection functions
The tests are run by means of the "TEST/RESET/RESET MODE" button and can take place
when the motor is either on or off. The test consists of three function tests.
Carry out the tests during commissioning
and cyclically every 36 months at the latest.
You will find out how to run the test in Chapter "Carrying out the function test (Page 45)".
See the chapter "Ambient conditions (Page 63)".
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