14
4.2 Elevator performance fine tuning
Stage Symptom Diagnostics Remedies
Start
Rollback Brake device releases too early Increase F8-57,ranging 0 to 0.5s
Start frequency is too low Increase F6-03, ranging 0 to1.5Hz
Torque output is insufficient Make sure F3-00=0, F3-01=0
Starting jerk Brake device releases too late Decrease F8-57, ranging 0 to 0.5s
Start frequency is too high Decrease F6-03, ranging 0 to 1.5Hz
Too fast acceleration at this section Increase F6-08, ranging 0 to 80%;
Or increase F0-17, ranging 0 to 20s
Jerk when
acceleration end
Too fast acceleration at this section Increase F6-09, ranging 0 to (95-(F6-08))%
Or increase F0-17, ranging 0 to 20s
acceleration ends
Too big speed loop PI gains Decrease F2-03, ranging 0 to 100
Or increase F2-04, ranging 0to 10
Vibration Too small margin between F2-02 and F2-05
Make sure F2-05 - F2-02 > 3
F2-05, ranging from F2-02 to 7Hz
Overcurrent stall prevention occurs Make sure F3-18=170%
Nominal
speed
Vibration Too big speed loop PI gains Decrease F2-00 or F2-03, ranging 0 to 100;
Or increase F2-01 or F2-04, ranging 0.01 to 10.00
Too big current loop PI gains Double check the motor parameters and then
perform motor auto-tuning once more
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