Interroll DL Series - Troubleshooting

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Version 1.2 (08/2022) en
Translation of original operating instructions
Troubleshooting
11 Troubleshooting
Troubleshooting
Fault Possible cause Remedy
Motor does not
start or stops
during operation
No voltage 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 during regular operation”.
Motor overload Disconnect main power supply, determine and repair cause of
overload.
Internal thermal circuit
breaker tripped/failure
Check whether there is overload or overheating. After cooling
o,checkcontinuityofinternalthermalprotection.Seethefault
„Motor heats up during regular operation”.
External overload
protection tripped/ failure
Check whether there 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 the local Interroll dealer.
Motor winding short
circuit (insulation fault)
Replace drum motor or contact the local Interroll dealer.
Motor does not
start or stops
during operation
Drum shell or conveyor
belt blocked
Ensure that belt and drum motor are not blocked and that all
rollers and drum shells can turn freely.
If the drum motor cannot turn freely, the gear box or the bearing
may be blocked. In that case, contact the local Interroll dealer.
Low ambient
temperature/ high oil
viscosity
Install a heater or a more powerful drum motor. In that case,
contact the local Interroll dealer.
Gear box or bearing
blocked
Check by hand if the drum shell can be turned freely.
If not, replace the drum motor or contact the local Interroll dealer.
Incorrect assembly Check whether a starting capacitor is required for a single-phase
motor.
Ensure that the motor is not rubbing against the conveyor belt
frame.
Motor is running,
but drum shell
does not turn
Transfer loss Contact the local Interroll dealer.