Operating Instructions

Fault Codes
Digital Keypad
310 | 443
Incorrect wiring of brake resistor or brake
unit
Check the wiring of the brake resistor or braking unit.
Malfunction caused by interference
Verify the wiring of the control circuit and the wiring/grounding of the main circuit to prevent
interference.
Hardware failure in voltage detection
Check if other error codes such as cd1 to 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*
Display on LCD 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 the DC bus voltage is lower than Pr.06-00
Fault treatment parameter
N/A
Reset method
Manual reset
Reset condition
Reset when the DC bus voltage is higher than Pr.06-00 + 30V
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*
Display on LCD 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
Immediately act when the DC bus voltage is lower than Pr.06-00
Fault treatment parameter
NA
Reset method
Manual reset
Reset condition
Reset when the DC bus voltage is higher than Pr.06-00 + 30 V