K&R GT600-4T132G User Manual page 303

Operating Panel Display
Cause
Load is too heavy or locked-rotor occurs on
motor.
The AC drive power class is small.
Operating Panel Display
Cause
Motor switchover via terminal during drive
running of the AC drive.
Operating Panel Display
Cause
Encoder parameters are set improperly.
Motor auto-tuning is not performed.
F9-69 (detection level of speed error) and
F9-70 (detection time of speed error) are set
incorrectly.
Operating Panel Display
Cause
Encoder parameters are set improperly.
Motor auto-tuning is not performed.
F9-67 (Overspeed detection level) and
F9-68 (Overspeed detection time) are set
incorrectly.
Operating Panel Display
Cause
Cable connection of temperature sensor
becomes loose
The motor temperature is too high.
Operating Panel Display
Cause
Resistance of braking resistor is too small.
Operating Panel Display
Cause
Braking IGBT is abnormal.
Operating Panel Display
Pulse-by-pulse current limit fault
Cause
Reduce load or check motor and mechanical conditions.
Replace a drive of larger power class.
Fault Name
Motor switchover fault during running
Possible Solution
Perform motor switchover after the AC drive stops.
Fault Name
Speed error
Possible Solution
Set encoder parameters properly.
Perform motor auto-tuning.
Set F9-69 and F9-70 correctly based on actual condition.
Fault Name
Motor overspeed
Possible Solution
Set encoder parameters properly.
Perform motor auto-tuning.
Set F9-67 and F9-68 correctly based on the actual
situation.
Fault Name
Motor overtemperature.
Possible Solution
Check cable connection of temperature sensor.
Decrease carrier frequency or take other measures to
cool the motor.
Fault Name
Braking unit overload
Possible Solution
Replace a braking resistor of larger resistance.
Fault Name
Short-circuit of braking circuit
Possible Solution
Contact the agent or Inovance.
10. Troubleshooting
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