K&R ACD320 Series User Manual

ACD320user manual Fault Diagnosis and countermeasures
- 110-
Improper V/F curve or manual torque
boost.
Adjust V/F curve setting.adjust
manual torque boost or change to
automatic torque boost
Restart rotating motor
Set speed checking restart function
or start after the motor stopping
Low power source voltage Check input power supply
Exsit shock load in the accelerating
process.
Cansel shock load.
Power of inverter is a bit small Choose inverter with high-power
U-03
Overcurrent
during
decelerating
process
Wheter grounding or short circuit exist in
output loop of inverter.
wiring again
Wether the connecting wire from inverter
to motor is too long
Install reactor or output filter
Auto tuning of motor parameters doesnot
run in vector control mode.
Run auto tuning of motor
parameters
Decelerating time is too short Prolong decelerating time
low power source voltage Check input power supply
Have potential energy load or big Inertia
load
Increase braking power of external
energy consumption braking
subassembly
Power of inverter is a bit small Choose inverter with high-power
failure
code
failure type possible reason countermeasure
U-04
overcurrent during
constant speed
process
Wheter grounding or short circuit exist in
output loop of inverter.
Wiring again.
Wether the connecting wire from inverter
to motor is too long
Install reactor or output filter.
Auto tuning of motor parameters doesnot
run in vector control mode.
Run auto tuning of motor
parameters.
Load change suddenly or Have
unwonted phenomena
Check or reduce break of the load
Accel/Decel time is set to too short
Prolong accelerating decelerating
time properly
low power source voltage Check input power supply
Power of inverter is a bit small Choose inverter with high-power

K&R ACD320 Series Specifications

General

Brand	K&R
Model	ACD320 Series
Category	Inverter
Language	English