Periodic Inspection and
Maintenance
7
7.4 Replace a Cooling Fan and Circulation Fan
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual 423
4. Safety the fan cable to the hook.
A - Hook B - Fan cable
5. Reattach the drive cover.
6. Energize the drive and set o4-03 = 0 [Fan Operation Time Setting = 0 h] to reset the cooling fan operation
time.
◆ Replace Fans (Procedure G)
WARNING! Electrical Shock Hazard. Do not examine, connect, or disconnect wiring on an energized drive. Before servicing,
disconnect all power to the equipment and wait for the time specified on the warning label at a minimum. The internal capacitor
stays charged after the drive is de-energized. The charge indicator LED extinguishes when the DC bus voltage decreases
below 50 Vdc. When all indicators are OFF, remove the covers before measuring for dangerous voltages to make sure that the
drive is safe. Failure to obey will cause death or serious injury.
CAUTION! Burn Hazard. Do not touch a hot drive heatsink. De-energize the drive, wait 15 minutes minimum, and make sure
that the heatsink is cool to replace the cooling fans. Failure to obey can cause minor to moderate injury.
NOTICE: Follow cooling fan replacement instructions. Replace all fans when performing maintenance to help ensure maximum
useful product life. Improper fan replacement could cause damage the drive.
■ Remove a Fan
1. Remove the drive cover.
CAUTION! Crush Hazard. Only loosen the cover screws. Do not fully remove the cover screws. Make sure that the
covers do not fall. Missing cover screws can cause the cover to fall and cause injury.
2. Unplug the fan cables from the fan connectors.
A - Fan unit
B - Fan connector
C - Fan cable
Figure 7.48 Circulation Fan Components
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