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5.2 Cleaning/Checking or Replacing the Fan – 400 to 600A Models
Every 6-12 months (depending on the dust
level of the installation) blow a compressed
air jet downward through the upper rectan-
gular cooling grilles (on the side opposite the fan). This
will clean the internal heat dissipater and the cooling
fan.
IN CASE OF OVERHEAT ALARM:
If periodic cleaning does not eliminate the problem,
perform the following operations after first checking
that the CFW has been turned off and cut off from the
electrical power supply to ensure the operator’s safety:
1. Extract the 24V power supply connector from the
fan.
2. Use a crosshead screwdriver to unscrew the two
screws holding the fan in place (see drawing ).
3. Extract the fan, complete with its protective grid,
and inspect.
4. Clean or replace the fan.
CAUTION: before putting the fan back into
the product, make sure that the arrow show-
ing the direction of the air flow on the fan is
pointing toward the dissipater.
5. Insert the fan, complete with its protective grid, cen-
tring it on the two reference pins.
6. Screw in the two screws fixing it in place with a
crosshead screwdriver, tightening to a torque of 0.8
Nm.
7. Insert the fan’s 24V power supply connector.
8. Turn on the power to the product and check that the
fan turns in the right direction.
Содержание CFW
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