YASKAWA GA800

4 Maintenance
YASKAWA TOEPC71061779D GA800 Drive Installation Manual 31
Model Cooling Fan Circulation Fan
Circuit Board Cooling
Fan
Procedure Ref.
4477 - 4605
T477 - T605
2 1 2 Procedure G 49
4720
5382 - 5472
T720
3 1 2 Procedure H 57
■ Fan Replacement (Procedure A)
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.
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.
Fan Removal
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 4.1 Remove the Fan Finger Guard
2. Pull the cooling fan straight up from the drive. Disconnect the relay connector and remove the fan from the
drive.
A - Cooling fan
Figure 4.2 Remove the Cooling Fan
Fan Installation
Reverse the removal procedure for fan installation.