GE Industrial Solutions AF-300 C11 - Manual (Page 68)

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(9) Input phase failure (Lin) and imbalance
Is the inter-phase imbalance ratio
within 2%?
Are all the three phases of the
input voltage supplied?
No
Yes
Yes
Connect the input wires correctly.
Lin
Probable faulty drive. Contact
GE Fuji.
No Examine the power supply system
to satisfy the specification value.