GE Industrial Solutions AF-300C AC Drive - Manual (Page 98)

GEK-85718
Motor Rotation Is Not Smooth
During Acceleration/Deceleration?
NO
Lengthen Acceleration/Deceleration
Time Setting.
Y E S
Input Voltage Fluctuation? Correct Power Line Problem.
NO
Large Load Fluctuation?
NO
YES
Increase Motor And lnverter Capacity.
Attach A Flywheel.
YES
Noise Interference In Analog Input? Test With Analog Frequency Setting Device.
lnverter Problem
Figure 8-2. “MOTOR ROTATION IS NOT SMOOTH” TROUBLESHOOTING CHART
Motor Overheats
NO
Do Motor And V/F Pattern Match?
YES
Correct Pattern Setting
(Function Codes 10, 11, and 12).
Is There Continuous Low Speed Operation?
YES
Use Special lnverter Motor. Lower The Torque
Boost (Function Code 19).
Is The Load Too Heavy?
YES
Reduce Load. Increase lnverter Capacity
(Use Larger HP Inverter).
Check lnverter Output Voltage Balance.
I
YES
If Good, Indicates Motor Problem.
NO
If Not Good, Indicates lnverter Problem.
I
Figure 8-3. “MOTOR OVERHEATS” TROUBLESHOOTING CHART
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