Interroll Drum motor series i, S, S/A, D
96
Version 4.1 (06/2015) en-US
Translation of original instruction manual
Troubleshooting
Troubleshooting
Fault
Possible cause
Remedy
Motor does not start or stops
during operation
No power supply
Check the voltage supply.
Incorrect connection or loose/
defective cable connection
Check connection according to connection diagram.
Check whether cables are defective or connections are loose.
Motor overheating
See the fault "Motor heats up in regular operation".
Motor overload
Disconnect main power supply, determine and remove cause of
overload.
Internal thermal circuit breaker
tripped / failure
Check whether it is overload or overheating. After cooling off,
check continuity of internal thermal protection. See the fault
"Motor heats up in regular operation".
External thermal circuit
breaker tripped / failure
Check whether it is overload or overheating. Check continuity
and function of external overload protection.
Check whether the correct motor current is set in the external
overload protection.
Motor winding phase error
Replace drum motor or contact local Interroll dealer.
Motor winding short circuit
(insulation fault)
Replace drum motor or contact local Interroll dealer.
Brake does not apply
Check whether the brake works during start-up.
During the brake release, one can generally hear the clicking
noise of the brake in the motor. The drum tube must then easily
turn by hand. Depending on the gear ratio, the motors can be
turned more easily or harder.
Check connections and continuity of the brake winding.
If connections and brake winding are OK, check the rectifiers.
Wrong rotation of backstop
Immediately switch off the current supply and turn drum by
hand to determine whether the backstop is already
mechanically damaged. Check the correct rotational direction
of the connection and change the phase connection if
necessary so that the drum shell turns in the correct direction
or, if possible, reinstall the drum motor so that it turns in the
other direction.
