UM-PRORUNNER_mk9-2.0-EN
39
Troubleshooting
The motor gets overheated 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.
Check the weight of the product
according to the data on the
type plate.
Check the motor on easily free
movement.
The settings of the frequency
inverter are incorrect.
Adjust the settings.
The motor hums and does not
run properly.
The motor runs with 2 phases,
e.g. because of a faulty connec-
tion, broken cable or a defective
winding.
Check the connections and the
cable. Dismount the motor for
repair.
The fuses blow and/or the
motor protection is triggered.
The power has been connected
incorrectly.
Connect the power in the cor-
rect way.
Short circuit in the power.
Remedy the short circuit.
Wrong fuse (too low value).
Adjust the fuse to the nominal
motor current.
Motor protection poorly set.
Adjust the motor protection to
the nominal motor current.
Short circuit in the winding or
with respect to the earth.
Dismount the motor for repair.
The motor does not run. The
motor protection is triggered
immediately.
Incorrect setting of the motor
protection.
Check and/or adjust the motor
protection to the correct value.
The mechanical drive (chains,
belts, rollers or guides) are
blocked.
Remove the blockage. Clean
the machine. If possible,
shorten the inspection/mainte-
nance/cleaning intervals.
Check the chains, drive belts,
rollers, guides and the like for
damage or incorrect adjust-
ment.
Use of energy (motor current)
too high and higher motor tem-
perature.
The weight of the products is
too much.
Make sure the specifications for
use of the machine have been
observed.
Use of energy (motor current)
too high.
The drive belt does not run in
line.
Align the drive belt.
Use of energy (motor current)
too high and high temperature
of the bearing housing (some-
times accompanied by sound).
Ball bearing, ball bush, return
roller or the like is blocked.
Check the ball bearing, ball
bush, return roller or the like
and replace if necessary.
Problem
Possible cause
Solution