12. Troubleshooting
12
45
438 9152-11/03
04.03
Service
Manual
LOW DC VOLTAGE
The motor controller indicates the DC level is
too low.
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.
Voltage too low Voltage OK
The motor controller is
probably defective.
2. Inspect the power supply (230 V) at the main power
switch Q1 on the machine.
Voltage too low Voltage OK
Defective cabling.
Troubleshoot the mains.
39
5181
X311
Fig.
39
40
5365
Main power switch Q1
Fig.
40
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