SIRIUS 3RA6 Compact Starter
System Manual, 02/2008, GWA 4NEB 560 0601-02 DS 02
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Functions
7
7.1 Normal switching duty
Compact starters are mainly used for switching and protecting motors and also as main
switches and disconnectors. The actuator can be used to switch the compact starter
manually; together with the "ON I" LED it indicates the compact starter's current status.
The actuator has three positions:
●
READY: Compact starter is ready
●
OFF: Compact starter is out of service
● TRIPPED: Malfunction or short circuit trip
Actuator OFF
When the actuator is in the OFF position, the main contacts are open and the active areas
of the control electronics are disconnected. Only the thermal motor model and display
elements remain in operation.
When the actuator is in the
OFF position, the 3RA61 compact starter direct starter can
adopt the following statuses:
Table 7-1 Actuator display elements OFF (direct starter)
LEDs
Actuator
ON I A1/A2
Compact starter status
OFF
OFF
OFF
Compact starter is off:
- The circuit breaker mechanism is off.
- The main contacts are open.
- The control voltage is not present.
OFF
OFF
GREEN
Compact starter is off:
- The circuit breaker mechanism is off.
- The main contacts are open.
- The control voltage is present.