Delta VFD450CP43S-21 - Page 613

Chapter 14 Fault Codes and DescriptionsCP2000
14-10
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 DC bus voltage is lower than Pr.06-00
Fault treatment parameter NA
Reset method Manual reset
Reset condition
Reset when DC bus voltage is higher than Pr.06-00 + 30V (Frame A
–D) / 40V
(Frame E and above)
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.
Sudden load
Reduce the load.
Increase the drive capacity.
DC bus Install DC reactor(s).
ID* Display on LCD Keypad Fault Name Fault Descriptions
13
Low-voltage at
constant speed
(Lvn)
DC bus voltage is lower than Pr.06-00 setting value at
constant speed
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 NA
Reset method Manual reset
Reset condition
Reset when DC bus voltage is higher than Pr.06-00 + 30V (Frame A
–D) / 40V
(Frame E and above)
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.
Sudden load
Reduce the load.
Increase the drive capacity.
DC bus Install DC reactor(s).