K&R GT600-4T132G User Manual page 294

10. Troubleshooting
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Drive in Feedback Vector Control (F0-01 = 1)
It is applicable to the application with an encoder for speed feedback. In this mode, you need
to set the encoder pulses per revolution (F1-27), the encoder type (F1-28) and the encoder
direction (F1-30) correctly.
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Problem Solutions
Set F1-27, F1-28 and F1-30 correctly.
Overload or
overcurrent fault
detected during motor
start
Overload or 1. Set motor parameters F1-01 to F1-05 according to the motor
overcurrent detected nameplate.
during motor running
2. Select a proper motor auto-tuning mode by setting F1-37 and perform
motor auto-tuning. If possible, select dynamic auto-tuning (F1-37 = 2).
Poor torque or speed 1. If motor torque and speed response are too slow, increase the setting
response and motor of F2-00 (speed loop proportional gain 1) by 10 gradually or decrease
oscillation at speeds the setting of F2-01 (speed loop integral time 1) by 0.05 gradually
below 5 Hz
2. If motor oscillation occurs, decrease the setting of F2-00 and F2-01.
Poor torque or speed 1. If motor torque and speed response are too slow, increase the setting
response and motor of F2-03 (speed loop proportional gain 2) by 10 gradually or decrease
oscillation at speeds the setting of F2-04 (speed loop integral time 4) by 0.05 gradually.
above 5 Hz
2. If motor oscillation occurs, decrease the setting of F2-03 and F2-04.
Low speed accuracy If speed error when motor runs with load is large,, increase the setting of
F2-06 (vector control slip compensation gain).
Obvious speed
If motor speed fluctuation is large, increase the setting of F2-07 (SVC
fluctuation torque filter time) by 0.001s gradually.
Too loud motor noise Increase the setting of F0-15 (carrier frequency) by1.0 kHz gradually.
Note that increase in carrier frequency will result in an increase in the
leakage current of the motor.
Insufficient motor Check whether torque upper limit is small. If yes, please:
torque
●
●
Increase the setting of F2-10 (digital setting of torque upper limit in
speed control mode) in the speed control mode.
Increase the torque reference (A0-03) in the torque control mode.