HEIDENHAIN iTNC 530 Service Manual page 673

The list does not claim to be complete; ask your machine tool builder!
Possible
You may add your own experiences!
causes of error
July 2010
Power failure
Failure of one or several phases in the supply line
Supply voltage fallen below minimum
Interruption in the electrical cabinet
Inverter (power supply module) defective
Short circuit of drives (drive modules, motors)
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