8.4 Replace Cooling Fans and Circulation Fans
388 YASKAWA SIEPC71061737B GA800 Drive Technical Reference
◆ Replace a Fan (Procedure D)
DANGER! 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. If
you do work on the drive when it is energized, it will cause serious injury or death from electrical shock. The drive has internal
capacitors that stay charged after you de-energize the drive.
CAUTION! Burn Hazard. Do not touch a hot drive heatsink. De-energize the drive, wait for a minimum of 15 minutes, then make
sure that the heatsink is cool before you replace the cooling fans. If you touch a hot drive heatsink, it can burn you.
NOTICE: Use the instructions in this manual to replace the cooling fans. When you do maintenance on the fans, replace all the fans
to increase product life. If you install the fans incorrectly, it can cause damage to the drive.
■ Remove a Fan
1. To remove the fan finger guard from the drive, push the hooks on the left and right sides of it and pull up.
A - Fan finger guard
Figure 8.20 Remove the Fan Finger Guard
2. Pull the cooling fan straight up from the drive. Disconnect the power supply connector and remove the fan
from the drive.
A - Cooling fan
Figure 8.21 Remove the Cooling Fan
■ Install the Cooling Fans
Reverse the removal procedure to install a cooling fan.
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