12. Troubleshooting
12
41
438 9152-11/04
05.42
Service
Manual
Continued from previous
4. Replace X3. Remove the contactor X312
and measure the resistance of the contactor
with the motor cabling between X312:4 - 5.
Contact Interruption
Defective cabling
between motor controller
and motor. Inspect the
cabling and replace if
necessary.
Internal error in the thermal sensor of the motor
controller detector.
5. Switch of the wall-mounted power switch. Undo the
contactor at X3 on the motor. Use an ohmmeter to
measure the resistance towards the motor. Measure
between 1-2, 1-3, and 2-3.
Resistance
W365H 4 ohm
W375H 4 ohm
W3105H 4 ohm
W3130H 2 ohm
W3180H 1,2 ohm
W3240H 0,8 ohm
W3300H 0,8 ohm
Correct resistance One of the resistance values is
incorrect
The motor is probably
defective.
Troubleshoot the cabling between the motor and motor
controller.
34
3402
Contactor X3, female towards motor
Measure resistance between pins 1, 2 and 3
33
5181
X312
Fig.
33
Fig.
34
1
3
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