Description
3.5 Functions
SIRIUS 3RM1 motor starter
Manual, 11/2013, A5E0345285095020A/RS-AB/002
31
If voltage is present at terminals A1/A2 and at control inputs IN1/IN2 after resetting the
overload trip, the 3RM1 motor starter restarts.
The rated current of 10 A must not be set for motorized loads but only for resistive loads. In
this setting, the tripping characteristics deviate from Class 10A; see Chapter "Overload
protection/device protection characteristic (Page 125)".
You can find information about typical switching frequencies in Chapter "Number of starting
operations (Page 124)".
WARNING
Hazardous Voltage.
Can Cause Death, Serious Injury, or Property Damage.
Health hazard from automatic hot restart
If the DEVICE LED shows a yellow light and the FAILURE LED a red light, and a manual
RESET or auto RESET takes place following an overload trip, the machine starts up
immediately if there is a control command at IN1/IN2. Personnel in the danger area can be
injured.
Make sure that the danger area of the machine is kept clear of people.
Reset in manual operation
If the RESET method is set to manual RESET, acknowledge an overload trip as follows:
1.
Wait for the cooling time to elapse.
2.
Press the "TEST/RESET/RESET MODE" button to acknowledge.
As an alternative, in the case of the 3RM10/3RM12 Standard motor starters, you can use
the RESET control input IN3 for acknowledgement.
Note
If you briefly switch the control supply voltage off and on again, there is no automatic
acknowledgment.
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