General Troubleshooting - GE VAT200 Quick Start Manual

5.2 General troubleshooting

Status
Is power applied to L1(L), L2, and L3(N)
terminals (is the charging indicator lit)?
Are there voltage across the output terminal
T1, T2, and T3?
Is overload causing the motor blocked?
Motor can
Are there any abnormalities in the inverter?
not run
Is forward or reverse running command issued?
Has analog frequency signal been input?
Is operation mode setting correct?
Are wiring for output terminals T1, T2, and T3
correct?
Motor runs
inversely
Are wiring for forward and reverse signals
correct?
Are wiring for analog frequency inputs correct?
The motor
speed can
Is the setting of operation mode correct?
not be
regulated.
Is the load too heavy?
Are specifications of the motor (poles,
voltage...) correct?
Motor
running
Is the gear ratio correct?
speed too
high or too
low
Is the setting of the highest output frequency
correct?
Is the load too heavy?
Motor speed Does the load vary largely?
varies
unusually
Is the input power lack of phase?
Checking point
Chapter 5 Troubleshooting and maintenance
‧Is the power applied?
‧Turn the power OFF and then ON again.
‧Make sure the power voltage is correct.
‧Make sure screws are secured firmly.
‧Turn the power OFF and then ON again.
‧Reduce the load to let the motor running.
‧See error descriptions to check wiring
and correct if necessary.
‧ Is analog frequency input signal wiring
correct?
‧Is voltage of frequency input correct?
‧Operate operations through the digital
panel.
‧Wiring must match U, V, and W
terminals of the motor.
‧Check wiring are correct if necessary.
‧Check wiring are correct if necessary.
‧Check the operation mode of the
operator.
‧Reduce the load.
‧Confirm the motor's specifications.
‧Confirm the gear ratio.
‧Confirm the highest output frequency.
‧Reduce the load.
‧Minimize the variation of the load.
‧Increase capacities of the inverter and the
motor.
‧Add an AC reactor at the power input
side if using single-phase power.
‧Check wiring if using three-phase power.
5-6
Remedy