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
NO
NO
NO
Is the operation switch
in “RUN’ ?
NO
NO
NO
NO
The motor can not run
z
Figure 5-4 Motor RUN failure Flow chart