12. Troubleshooting
12
48
438 9152-11/03
04.03
Service
Manual
LINE INTERRUPT
The motor controller is missing a phase.
If the power is on, be very careful when
working on the the machine.
Switch off the machine for at least 30 seconds to
ensure the motor controller has been completely
reset. Then try to start the machine again. If the
error returns, troubleshoot as follows:
1. Verify the voltage supply (230 V) to the motor
controller at the contactor X311.
No voltage Voltage OK
The motor controller is
probably defective.
2. Inspect the voltage supply (230 V) at the main power
switch Q1 of the machine. For machine with neutral
leads, measure between L1 and N; for machines
without neutral leads, measure between L1 and L2.
No voltage Voltage OK
Defective cabling.
Troubleshoot the mains.
45
5181
X311
Fig.
45
Fig.
46
T1
T2
T3
L1
N
N
L2
L3
46
5365
Main power switch Q1
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