5-9
Is MCCB
applied?
Can MCCB be
applied?
Are voltages
between power
terminals correct?
Is LED lit?
Are there outputs between the
U-V-W terminals of the motor?
Are outputs between U-
V-W even
Short circuited wiring
․The power is abnormal
․Incorrect wiring
E310fault
The operation switch is set to
“RUN’ position
E310fault
E310fault
YES (within ±3% of the normal value)
YES (voltage deviation between output pairs are even if
within ±3% of the normal value without the motor
․Motor
․Motor faults
․Incorrect wiring
YES
YES
O
O
O
Is the operation switch
in “RUN’ ?
O
O
O
O
The motor can not run
z Figure 5-4 Motor RUN failure Flow chart
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