29 April 2022
Brake Motor Upgrade
WEBB-ELEC was recently asked to engineer a brake motor upgrade
solution for a customer who had issues with brake motors that were continually failing in production.
The motors were used in a brick
packaging application. In this instance,
the customer was suffering from
premature brake failure with the existing
brake motors. The fault was the same in
all instances, with the brake coils being
the point of failure. The customer called
Webb-elec to discuss the problem, and
the next day an engineer attended site
and inspected the problematic motors as
they ran through their full operation.
The engineer noted that the customer
had increased its production rate and that the duty cycle of the
existing brake unit was now
far in excess of its designed
operating window. Hence
the brake was running very
hot, resulting in the coil
finally burning out.
The solution was
to supply a new SEW
Eurodrive unit. This is a
brake motor complete
with a force ventilation fan
that would enable a constant stream of
cooling air to keep the motor and brake
unit cool during its operating cycle. This
was not possible with the standard motor
shaft-mounted fan due to the continual
stop-starting action of the production process. In addition, the brake rectifier
was reconnected to shorten the brake
response time to ensure it was already
released upon motor startup.
webb-elec.co.uk
Unit 27, Owen Road, Willenhall, WV13 2PY
+44 (0)12152 65070
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