UM-PRORUNNER_Mk5-1.2-EN-US 113
Troubleshooting
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. Refer to section 7.8.11.
The fuses blow and/or the
motor protection is triggered.
The power has been incorrectly
connected.
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.
Refer to section 7.8.11.
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.
The motor does not run. 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.
Make sure that the situation is
safe. Then release the emer-
gency stop or the switch.
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 and wear of chains
and/or drive belts.
The chain or drive belt has
been tensioned too tightly.
Lower the tension of the chain.
Refer to section 7.7.
The drive belt does not run in
line over the drive return
wheels.
Align the chain or 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
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