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8. SERVICE SECTION
Fault finding:
Disconnect the machine from main power supply.
Check overvoltage varistors
Disconnect the incoming leads from the E5 EMC-filter.
Make a visual inspection of the three varistors if any looks damaged then the machine has
been connected to a voltage exceeding the approved 440VAC.
Check the incoming voltage and replace the varistors.
If the varistors are undamaged then measure between the three phases with a resistance test.
Correct value is OL or unlimited, if the value is low then replace the varistors.
Содержание UPC 1041
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