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10.2 - FAN
OPERATION FLOW SIGNAL
The machine is cooled by a ventilation system consisting of a fan which runs constantly. The fan is supplied by a +15Vdc voltage provided
by the switching feeder.
BLOCK DIAGRAM
Fault Possible problem Suggestions
The fan will not start 1. Fan broken
2. +15Vdc supply failure
If the fan is correctly supplied by a voltage
of +15Vdc but does not work, replace the
fan.
The +15Vdc supply voltage is not present
between CN6/1 CN6/2 on the input
filter board 15.14.243.
Check the supplies. If the DC_LINK correctly
shows a voltage of +325Vdc, the problem
will then lie in the switching feeder found on
board 15.14.243.
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