TECO N310-4005 - The motor can not run

Chapter 5 Troubleshooting and maintenance
5-11
Is MCCB
applied?
Can MCCB be
applied?
Are voltages
between power
terminals correct?
Is LED lit?
Are there outputs between the
U,V, and W terminals of the
motor?
Are outputs between
U,V,W even
Short circuited wiring
․The power is abnormal
․Incorrect wiring
N310fault
The operation switch is set to
“RUN’ position
N310 fault
N310 fault
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
N
O
N
O
N
O
Is the operation switch
in “RUN’ ?
N
O
N
O
N
O
N
O
The motor can not run
z Figure 5-4 Motor RUN failure Flow chart