TECO N310 Series - Motor Instability Troubleshooting Flow Chart; Motor Overheat Troubleshooting Flow Chart; Motor Overheating; Motor Runs Unevenly

Chapter 5 Troubleshooting and maintenance
5-12
Motor Overheating
Reduce the load.
Increase capacities of N310
and the motor.
Select the motor again
N310 faults
Correct the bad connection
Clear the deterrence
Bad connection between
N310 drive and the motor
Is load or current
exceeding the specified
value?
Is motor running at
low speed for a long
time?
Is motor voltage
between
U-V,V-W,W-
U correct?
Is there any
deterrence preventing
coolin
g
of the moto
r
Motor runs unevenly
Is the load
fluctuating?
Does it happen
during deceleration?
Are the output voltages
between U-V,V-W,W-U
balanced?
Any mechanical vibration or
gear backlash?
Is the
acceleration time
correct?
Increase the Acc/ Dec time
Reduce the load.
Increase capacities of
N310
and the motor.
N310 faults
Reduce the load fluctuation
or add a flywheel.
Inspect the mechanical system
N310 faults
YES
YES
YES
YES
YES
(
within ±3% of the normal value
)
YES
(
within ±3% of rated out
p
ut volta
g
e
YES
YES
YES
N
O
N
O
N
O
N
O
N
O
N
O
N
O
Minimal
Figure 5-5 Motor Overheat Troubleshooting Flow Chart
Figure 5-6 Motor Instability Troubleshooting Flow Chart