Service
Manual
12. Troubleshooting
12
38
438 9152-31/06
05.03
45E
Indicates tacho pulses missing at requested revolutions.
If the power is on, be very careful when working on 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, first verify:
• that phase is not missing to the motor
• that the tacho generator generates pulses
• that there are no interruption in tacho
• the cabling between the tacho generator and the RDC/motor control-
card
If the error remains, the RDC/motor control-card is probably defective.
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