Huchez TRBoxter INOX 250, Instruction Manual, Page: 21 / 37

©
2012 by Huchez Treuils S.A.S.
Translation of the original instructions manual
21
EN
Reproduction prohibited
12 – Operating faults
If you have followed the instructions for assembly and use, any incidents that do occur should be minor.
The following instructions will help you resolve any faults quickly.
Fault Possible cause Solution
The motor does not
start.
Power supply cut.
Check and correct the problem.
Check the emergency stop.
Brake not released See "brake fault".
The contactor does not respond,
control fault.
Check the contactor control and eliminate
the fault.
Limit switch engaged. Check the limit switch.
The motor does not
start or starts with
difficulty.
The voltage or frequency varies
considerably compared to the setting
when starting.
Improve the mains conditions.
Check the cable sections.
The motor revs and
absorbs a lot of
current.
The brake is not released. See "brake fault"
Faulty winding.
Take the motor to an approved workshop for
repair.
One supply phase missing. Check the power supply.
The circuit breaker is
activated instantly.
Short circuit in the power supply cables. Eliminate the short circuit.
Short circuit in the motor.
Have the fault corrected in an approved
workshop.
Power supply cables incorrectly connected. Correct the connection.
Motor earth fault.
Have the fault corrected in an approved
workshop.
Speed greatly reduced
when loaded.
Voltage drop. Increase the power supply cable section.
Motor too hot
(temperature
measure)
Insufficient ventilation. Clear the ventilation lanes.
Ambient temperature too high. Respect the authorised temperature range.
Bad contact in the power supply cable
(operates temporarily on 2 phases)
Eliminate the bad contact.
Circuit breaker activated. Bad contact in the relays.
Service factor exceeded (S1 to S10, DIN
57530), e.g. because start speed is too
high.
Adapt the service factor to the prescribed
conditions; if necessary, call a specialist to
determine the type of motor.
Drive system too noisy Rotating parts vibrate.
Check the balances, eliminate the cause of
the vibrations.
Foreign bodies in the ventilation lanes. Clean the ventilation lanes.
Brake not released
Max. air gap exceeded due to worn
lagging.
Take the motor to an approved workshop for
repair.
The motor does not
brake.
Incorrect air gap.
Take the motor to an approved workshop for
repair.
Brake lagging totally worn.
Take the motor to an approved workshop for
repair.