Periodic Inspection and Maintenance
8
8.4 Replace Cooling Fans
YASKAWA SIEPC71061753C GA500 Technical Manual 315
◆ Replace the Cooling Fan (Procedure B)
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, measure 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.
■ Remove a Fan
1. Push the tabs toward the back of the drive and pull up to remove the fan finger guard from the drive.
A - Fan finger guard
Figure 8.10 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 8.11 Remove the Cooling Fan
■ Install the Cooling Fans
Reverse the removal procedure to install a cooling fan.
1. Connect the power supply connector between the drive and cooling fan.
Figure 8.12 Connecting the power supply connector
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