Delta VFD300C43S-HS User Manual page 563

ID* Display on LCM Keypad
10
Action level
Action time
Fault treatment parameter
Reset method
Reset condition
Record
Cause
Power voltage is too high
ON/OFF switch action of phase-in
capacitor in the same power
system
Incorrect wiring of brake resistor or
brake unit
Malfunction caused by interference
Hardware failure in voltage
detection
Motor ground fault
ID* Display on LCM Keypad
11
Action level
Action time
Fault treatment parameter
Reset method
Reset condition
Record
Cause
Power-off
Power voltage changes
Start up the motor with large
capacity
The load is too large
DC BUS
Check if there is short-circuit plate
or any DC reactor installed
between terminal +1 and +2
Fault Name
Over-voltage at stop
Over-voltage at stop
(ovS)
Action and Reset
820V
DC
Immediately act when DC BUS voltage is higher than the level
N/A
Manual reset
Reset only when DC BUS voltage is lower than 90% of over-voltage level
Yes
Check if the input voltage is within the rated AC motor drive input voltage range,
and check for possible voltage spikes.
If the phase-in capacitor or active power supply unit activates in the same power
system, the input voltage may surge abnormally in a short time. In this case,
install an AC reactor.
Check the wiring of brake resistor or brake unit.
Verify the wiring of the control circuit and wiring/grounding of the main circuit to
prevent interference.
Check if other error code such as cd1–cd3 occur after cycling the power. If yes,
return to the factory for repair.
The ground short circuit current charges the capacitor in the main circuit through
the power. Check if there is ground fault on the motor cable, wiring box and its
internal terminals.
Troubleshoot the ground fault.
Fault Name
Low-voltage during
DC BUS voltage is lower than Pr. 06-00 setting value
acceleration
during acceleration
(LvA)
Action and Reset
Pr. 06-00 (Default = depending on the model)
Immediately act when DC BUS voltage is lower than Pr. 06-00
N/A
Manual reset
Reset when DC BUS voltage is higher than Pr. 06-00 + 30V (Frame A–D) / 40V
(Frame E and below)
Yes
Improve power supply condition.
Adjust voltage to the power range of the drive
Check the power system.
Increase the capacity of power equipment.
Reduce the load.
Increase the drive capacity.
Increase the acceleration time.
Install DC reactor(s).
Connect short circuit plate or DC reactor between terminal +1 and +2.
If the error still exists, return to the factory for repair.
14-9
Chapter 14 Fault Codes and DescriptionsC2000-HS
Fault Descriptions
Corrective Actions
Fault Descriptions
Corrective Actions