ACD320user manual Fault Diagnosis and countermeasures
- 111-
U-05
input voltage is a bitter high Check input power supply
There is external force driving the motor
in accelerating process.
Cancel this force or addbraking
resistor
Accel time is set to too short Prolong accelerating time properly
Restart rotating motor Set to be speed tracking starting
U-06
Input voltage is too high Check input power supply
There is external force driving the motor
in decelerating process.
Cancel this force or addbraking
resistor
Decelerating time is too short Prolong decelerating time
Have potential energy load or big inertia
load
Increase braking power of external
energy consumption braking
subassembly
U-07
Input voltage is too high Check input power supply
There is external force driving the motor
in operating process.
Cancel this force or addbraking
resistor
Accel/Decel time is set to too short
Prolong accelerating decelerating
time properly
Input voltage change abnormally Assemble reactor
Load inertia is a bit big
Use energy consumption
subassembly
Unwonted input voltage
Check input power supply or look
for service
U-09
Under voltage
failure
transient power off Reset falure.
Input voltage is too low Check input power supply
U-10
Accel time is too short Prolong accelerating time
DC injection braking is too big
Reduce DC injection braking
current.prolong braking time
Improper V/F curve Adjust V/F curve and torque boost
Restart rotating motor Set to be speed tracking starting
power source voltage is too low check power source voltage
Load is too big or motor is blocked.
Reduce the load and check the
motor and macine.
Power of inverter is a bit small Choose inverter with high-power
To Next Page
Loading...
General