Mitsubishi Electric C80 series Maintenance Manual page 47

C80 Series Maintenance Manual
3 Maintenance of the Drive Unit
POINT
When the drive unit of E/EH Series which uses two cooling fans is in an emergency stop or alarm, one of fans (upper
one in the case of vertical layout, or either one in the case of horizontal layout) is stopped and power-saving oper-
ation is performed. If the suspended fan is restarted by canceling the emergency stop, it is not a problem with the
fan.
Replacement procedure
Replace the unit fan with the following procedures.
<MDS-E/EH-V1/V2/SP/SP2 Series>
(1) Turn the breaker for the input power OFF, and wait for the CHARGE lamp on the power supply unit to turn OFF before
removing the unit.
(2) Remove the fan guard from the back of the drive unit, and remove the two fan mounting screws.
(3) Remove the fan power cable.
(4) Disconnect the connection connector, and replace the fan.
IB-1501454-C
Remove the two screws.
18
Pull out the connection
connector and disconnect
the connector.