Troubleshooting
112 UM-PRORUNNER_Mk5-1.2-EN-US
13.2 RollerDrive conveyor
Problem Possible cause Solution
The motor does not run. Electrical failure. Remedy the electrical failure.
The operation or main power
supply switch is on "OFF".
Set the operation/main power
supply switch to "ON".
The door switch or emergency
stop is active.
Release the emergency stop
switch after having checked if
the situation is safe.
The motor does not run and
makes a humming sound.
Mechanical or electrical failure. An authorised qualified person
should disconnect the motor.
Refer to section 7.4.1.
No full power. Check the power cable for a
break or short circuit.
Poor contact. Check the terminal clamps.
Defect in the motor. Check the connection and the
motor winding.
Blown fuse. Replace the fuse.
Thermal safeguard triggered. Investigate and remedy the
cause of the overheating.
Motor protection triggered by
short circuit or overload.
Investigate and remedy the
cause. Then reset the motor
protection.
Defective power controller. Investigate and remedy the
cause. Replace the power con-
troller.
The motor starts with difficulty. Electrical faults such as "The
motor does not run and makes
a humming sound".
Check the starting current and
the nominal current. Investi-
gate and remedy the cause of
the increased use of energy.
The motor is overheated. The motor was designed for a
star connection but has been
connected in a triangle.
Change the connection from tri-
angle into star.
Voltage and/or frequency devi-
ates from the nominal value
when switching on.
Connect the motor according to
the data on the type plate.
The supply voltage deviates
more than 5% from the nominal
motor voltage.
Find out why it deviates and try
to remedy this.
Insufficient motor cooling. Check the ventilation openings
in the motor housing for block-
age. Check the fan for damage.
The motor overheats and runs
at a low speed.
Loose contact or broken cable
in the power circuit of the motor.
Check the power circuit for
loose contacts or broken
cables.
Too high use of energy. Investigate and remedy the
cause.
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