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INSTALLATION MANUAL
Troubleshooting
20
9 Troubleshooting
Troubleshooting may only be performed by qualified staff (see Section 1.3).
Risk of injury or death! Risk of injury or death due to electrical or mechanical forces!
Before starting to work on the motor gearbox or related parts, always switch the power off at the master
switch or operating switch and lock it out with a padlock to prevent switching on again.
9.1 Fault: power outage
•
Disconnect power to prevent unintentional operation of the motor gearbox during work activities;
•
In emergency situations the motor gearbox can be turned to the desired position using an electric drill and a
hex bit inserted in the hex socket on the motor shaft.
Caution!
When driving the motor with a hex bit, keep the speed under 250 rpm to protect the socket in the motor
shaft.
9.2 Fault: drive does not run
•
Check the motor protection switch and its setting. If the fault occurs again, there may be an overload;
•
Check whether the emergency switch of the motor gearbox is actuated;
•
Check the wiring, including the limit switch wiring;
•
For motor gearboxes with 3-phase mains supply, check whether rotation directions I and II correspond to limit
switches S11 and S12;
•
If the thermal protection (bimetallic switch) of the motor gearbox has tripped, the motor gearbox must cool
down for approximately 20 minutes. After this it can be used again. If this protection trips repeatedly, contact
your installer to resolve this problem.
9.3 Fault: travel past end position
•
Check whether the set screws in the limit switch mechanism are tight, and check the adjustment of the limit
switches;
•
Re-adjust the limit switches if necessary (see Section 4.5);
•
Check the operation of limit switches S11 and S12 and emergency switches S21 and S22. The switches must
be wired and monitored as normally closed (NC) contacts;
•
Check the operation of the relay and replace it if necessary.
9.4 Fault: oil leak
•
Check whether the vent plus is fitted and installed in the right place (see Section 4.1);
•
Contact the installer if oil leaks occur.
9.5 Fault: humming noise from motor
•
Check the voltages on all three phases, which should all be the same and correspond to the value on the
motor rating plate;
•
Check that all nuts on the terminal block are properly tightened;
•
Contact the installer if the fault persists.
De Gier B.V., Westlandseweg 9, 2291 PG WATERINGEN, THE NETHERLANDS, Tel. +31 (0)174 292089, Fax +31 (0)174 295644, E-mail: sales@degier.nl
www.degier.eu
Version 1 – 2014 / 06 / 11
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