AuCom MVE Series User Manual page 68

Display
Instantaneous
overcurrent
Instantaneous
overcurrent S2
Int Comms Fail
Interlock Trip
Internal fault x
Internal fault 94~
Internal fault 98
Internal fault 99~
Internal fault 101
Internal fault 105
Internal fault 106
Internal fault 107
Internal fault x
L1-T1 shorted
L2-T2 shorted
L3-T3 shorted
Possible cause/Suggested solution
There has been a sharp rise in motor current, probably caused by a locked rotor condition
(shearpin) while running. This may indicate a jammed load.
A trip may also occur when a medium level fault current has been detected. This may
indicate a system short circuit.
Related parameters: 4E, 4F, 16D
There has been a sharp rise in output current, possibly caused by a short circuit condition.
Identify and resolve the cause of the fault.
Related parameters: 4U, 4V, 16D
Communication has failed between the controller and the power interface board.
Check that the controller is receiving control voltage within the specified range
•
(terminals A11, A12).
Check that the fibre-optic cables between the controller and the interface board are
•
firmly connected.
• Check that each fibre-optic cable is emitting light at the Rx end.
This trip is not adjustable.
This is a name selected for a programmable input. Refer to Input A trip.
Where 'X' is a number.
This trip is not adjustable.
The MVE has tripped on an internal fault. Contact your local supplier with the fault code (X).
There has been an internal communication error within the soft starter. Remove then
restore control power.
This trip is not adjustable.
There is a problem with the non-conduction fibre-optic connections. Internal Fault 99
corresponds to phase 1, Internal Fault 100 corresponds to phase 2, Internal Fault 101
corresponds to phase 3.
• Check that the fibre-optic cable is properly connected between the non-conduction
PCB on the phase arm and the non-conduction readback connector on the power
interface board.
If the problem persists, replace the fibre-optic cable.
•
This trip is not adjustable.
The power interface board is faulty or damaged. Replace the board.
This trip is not adjustable.
The selected configuration for the CT ratio selection switches on the power interface board
is not valid.
• Check the DIP switch settings on the interface PCB.
This trip is not adjustable.
Mains voltage has been applied to the starter but no start signal has been received.
The starter will wait 5 seconds for a start signal, after mains voltage is applied.
•
• The starter will wait 30 seconds after a stop signal, before checking for mains voltage.
This trip is not adjustable.
The MVE has tripped on an internal fault. Contact your local supplier with the fault code (X).
This trip is not adjustable.
During pre-start checks the starter has detected a shorted SCR or a short within the
bypass contactor as indicated. Isolate the heatsinks and measure the resistance across
each SCR pair. The resistance of healthy SCRs should be approximately 100 kΩ per SCR
pair.
Related parameters: 6S
TROUBLESHOOTING
MVE User Manual (710-17074-00H) |
67