Siemens SIRIUS 3RM1 - Page 127

Operator control and monitoring
7.1 Operator controls
SIRIUS 3RM1 motor starter
Manual, 06/2016, A5E0345285095020A/RS-AE/005
127
Manual RESET
After an overload trip, reset the 3RM1 motor starter manually after a cooling time of three
minutes using the "TEST/RESET/RESET MODE" button. As an alternative, in the case of
the 3RM10/3RM12 Standard motor starters, you can use the RESET control input IN3 for
acknowledgment.
Auto RESET
After an overload trip, the 3RM1 motor starter is reset automatically after a cooling time of
three minutes.
WARNING
Automatic restart following reset.
Can cause death or serious injury.
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.
Note
Restriction in the hazardous area
In applications for the protection of motors in hazardous areas, a 3RM11/3RM13 Failsafe
motor starte
r may only be operated with the "Manual RESET" setting. The "RESET Mode"
LED must be off.
Procedure
When it is delivered, the 3RM1 motor starter is set to manual RESET. You can change the
setting as follows:
1. Press the "TEST/RESET/RESET MODE" button and hold it down. Switch on the supply
voltage via A1-A2.
2. The set RESET method is changed to the other RESET method.
– "RESET MODE" LED lit: Auto RESET selected
– "RESET MODE" LED not lit: Manual RESET selected
Note
Briefly switching the supply voltage off and
on again does not shorten the cooling time and
there is no automatic acknowledgment.