beautypg.com

Eq5 ac drive operations manual – HP Anab EQ5 User Manual

Page 102

background image

EQ5 AC Drive Operations Manual

_______________________________________________________________________

TECO – Westinghouse Motor Company Trouble Shooting Chart 96

(3) If the motor stalls during acceleration






























(4) If the motor generates abnormal heat

NO

YES

YES

Is the torque
boost excessive?

Reduce the torque boost.

Has the motor been
operated continuously
at a very low speed?

Use a motor exclusive

to the inverter.

Is the load excessive?

Reduce the load or
increase motor capacity.

Is the inverter output
voltage (at terminals
U, V, W) balanced?

Faulty motor

YES

NO

YES

NO

NO

The motor generates

abnormal heat.

Faulty inverter or error
due to noise, etc.
Contact TWMC.

Note: Motor overheating following a higher frequency

setting is likely the result of current waveform.

Contact TWMC.

YES

YES

YES

Is the inertia moment
of the motor or
the load excessive?

Is a special motor used?

Has the motor terminal
voltage dropped?

Reduce the inertia moment
of the load or increase

the inverter capacity.

Is the torque of
the load excessive?

Is the torque boost

set correctly?

Increase the torque boost.

The motor stalls

during acceleration.

Prolong the time.

NO

Is the acceleration

time too short?

YES

NO

NO

NO

NO

NO

Use a thicker cable
between the inverter
and the motor or
shorten the cable length.

YES

Reduce the torque of
the load or increase
the inverter capacity.

YES

Faulty inverter or error
due to noise, etc.
Contact TWMC.

Contact TWMC.

This manual is related to the following products: