Okuma Alarm-C 3774 EC circuit breaker
The circuit breaker of the EC is tripped.
This alarm occurs when a circuit breaker in the EC control circuit is tripped. Check the tripped breaker to locate the cause of the alarm.
Code
None->The circuit breaker of the EC is tripped.
1->The circuit breaker of the EC is tripped.
(The 1st circuit breaker of EC)
2->The 2nd circuit breaker of the EC is tripped.
3->The 3rd circuit breaker of the EC is tripped.
4->The 4th circuit breaker of the EC is tripped.
5->The 5th circuit breaker of the EC is tripped.
6->The 6th circuit breaker of the EC is tripped.
7->The 7th circuit breaker of the EC is tripped.
Probable Faulty Locations
An EC power circuit is shorted.
Measures to Take
Turn on the EC circuit breaker.