Veikong VFD500 Series User Manual page 93

Chapter 5 Function code
23 Group Drive protection function setting
Function Parameter
code name
DC Bus voltage
P23.00
control option
Overvoltage
P23.01
stall threshold
Undervoltage
P23.02
threshold
Overvoltage stall
P23.03
ratio
Undervoltage
P23.04
stall ratio
Undervoltage
P23.05
trip threshold
Undervoltage
P23.06 fault detecting
time
VFD500 high performance vector control frequency inverter user manual
Description
Unit'digit :Overvoltage stall control

0:overvoltage stall disabled
1:overvoltage stall enabled
2:overvoltage stall enabled self-adjustable
The over-voltage stall function limits the amount of

power generated by the motor by extending the
deceleration time or even increasing the speed,
avoiding over-voltage on the DC side and reporting
over-voltage faults
Ten'unit: Undervoltage stall control
0:undervoltage stall disabled
1:Undervoltage stall(decelerate to zero speed
and be in standby mode, after power
restoring ,it will run again automatically)
2: Undervoltage stall deceleration(decelerate to
zero and stop)
The undervoltage stall function reduces the

motor power consumption or reduces the
power consumption of the motor or turns it
into a power generation operation to avoid the
undervoltage fault on the DC side.
The undervoltage stall function is used when the

input power supply quality is poor (the power
supply voltage fluctuates downward or the
sporadic short power is suspended), and it is
necessary to keep the inverter running as much as
possible.
220V Level: 320V～400V
380V Level: 540V～800V
480V Level：650V～950V
220V level: 160V～300V
380V level: 350V～520V
480V level: 400V～650V
0～10.0
0～20.0
220V Level:160V～300V
380V Level:350V～520V
480V Level:400V～650V
0.0s～30.0s
- 91-
Default Property
01
★
Depend
★
Depend
★
1.0
☆
4.0
☆
Depend
★
1.0s
☆