Diagnostics and Fault Finding 5-2
514C Product Manual
DRIVE TRIPS
When a fault occurs the drive will trip and display the cause of the trip on the indicator LEDs
or on the diagnostic (test point 6) for the Thermistor/Microtherm Trip.
The Stall Trip (LED2 on) and the Thermistor/Microtherm Trip are reset by re-applying the
run signal to Terminal 5. The drive will then re-start. (It is necessary to remove then re-apply
the run signal).
An Overcurrent (LED3 on) is not reset by the Run signal re-application as this trip can
indicate that a major fault has occurred. The overcurrent trip is reset by removing then re-
applying the auxiliary supply. Remove the Run signal before removing the auxiliary supply.
Resetting the Stall Trip does not reset the drive’s internal timer that caused the trip. If the
drive is operated in current limit (LED5 illuminated) immediately after a Stall Trip the trip
could re-occur. This protects the drive and the motor from continuous overload operation.
However, it is possible to prevent the stall trip by using the Stall Override (Terminal 15).
DIAGNOSTIC TEST POINT DESCRIPTIONS
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