T
Commissioning
Vector control
EDK82MV222 DE/EN/FR 9.0
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Drive performance Remedy
Rough motor run and motor current (C0054) > 60 %
rated motor current in idle running (stationary
operation)
1. Reduction of motor inductance (C0092) by 10 %
2. Check of motor current under C0054
3. If the motor current (C0054) > 50 % of the rated
motor current:
– C 0092 must be reduced until the motor current
amounts to 50 % of the rated motor current
– Reduce C0092 by max. 20 %!
– Note: If you r educe C0092 the torque will
decrease!
Torque too low for frequencies f < 5 Hz (starting
torque)
Increase of motor resistance (C0084) or increase of
motor inductance (C0092)
Poor constant speed at high loads (setpoint and motor
speed are not proportional).
Increase of slip compensation (C0021)
Overcompensation results in drive instability!
Error messages OC1, OC3, OC4 or OC5 during
acceleration times (C0012) < 1 s (drive controller is no
longer able to follow the dynamic processes)
Change reset time of the I
max
controller (C0078):
z Reduction of C0078 = I
max
controller becomes
quicker (more dynamic)
z Increase of C0078 = I
max
controller becomes
slower (”smoother”)
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