Delta VFD4A2ME43ANNAA User Manual

Chapter 14 Fault Codes and DescriptionsME300
14-6
ID No. Display on LCM Keypad Fault Name Fault Descriptions
10
Over-voltage at stop
(ovS)
Over-voltage at stop
Action and Reset
Action level
230V series: 410 V
DC
460V series: 820 V
DC
Action time Immediately act when DC BUS voltage is higher than the level.
Fault treatment parameter N/A
Reset method Manual reset
Reset condition Reset only when DC BUS voltage is lower than 90% of the over-voltage level.
Record Yes
Cause Corrective Actions
Power voltage is too high.
Check if the input voltage is within the rated AC motor drive input voltage range,
and check for possible voltage spikes.
ON/OFF switch action of phase-in
capacitor in the same power
system
If the phase-in capacitor or active power supply unit acts in the same power
system, the input voltage may surge abnormally in a short time. In this case,
install an AC reactor.
Incorrect wiring of brake resistor or
brake unit
Check the wiring of brake resistor or brake unit.
Malfunction caused by interference
Verify the wiring of the control circuit and wiring/grounding of the main circuit to
prevent interference.
Hardware failure in voltage
detection
Check if other error codes such as cd1–cd3 occur after cycling the power. If yes,
return to the factory for repair.
Motor ground fault
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.
ID No. Display on LCM Keypad Fault Name Fault Descriptions
11
Low-voltage during
acceleration
(LvA)
DC BUS voltage is lower than Pr.06-00 setting value
during acceleration.
Action and Reset
Action level Pr.06-00 (Default = depending on the model)
Action time Immediately act when DC BUS voltage is lower than Pr.06-00.
Fault treatment parameter N/A
Reset method Manual reset
Reset condition
Reset when DC BUS voltage is higher than Pr.06-00 + 30 V (230V series) / + 60
V (460V series).
Record Yes
Cause Corrective Actions
Power-off Improve power supply condition.
Power voltage changes Adjust voltage to the power range of the drive.
Start up the motor with large
capacity.
Check the power system.
Increase the capacity of power equipment.
The load is too large.
Reduce the load.
Increase the drive capacity.
Increase the acceleration time.
DC BUS Install DC reactor(s).
Check if there is short circuit plate
or any DC reactor installed
between terminal +1 and +2.
Connect short circuit plate or DC reactor between terminal +1 and +2.
If the error still exists, return to the factory for repair.
ID No. Display on LCM Keypad Fault Name Fault Descriptions
12
Low-voltage during
deceleration
(Lvd)
DC BUS voltage is lower than Pr.06-00 setting value
during deceleration.
Action and Reset
Action level Pr.06-00 (Default = depending on the model)
Action time Immediate activate when DC BUS voltage is lower than Pr.06-00.
Fault treatment parameter N/A
Reset method Manual reset

Delta VFD4A2ME43ANNAA Specifications

General

Brand	Delta
Model	VFD4A2ME43ANNAA
Category	DC Drives
Language	English