8.4 Replace a Cooling Fan and Circulation Fan
322 SIEPYEUOQ2A01A AC Drive Q2A Technical Manual
5. Push the hooks on the left and right sides of the fan finger guard and click it into place on the drive.
Figure 8.33 Reattach the Fan Finger Guard
6. Energize the drive and set o4-03 = 0 [Fan.Oper Setting = 0 h] to reset the cooling fan operation time.
◆ Replace Fans (Models 4371, 4389)
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. To remove the fan finger guards from the drive, push the hook on the back side of each guard and pull up.
A - Fan finger guard
Figure 8.34 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.
Note:
The number of fans is different for different drive models.
A - Cooling Fan
Figure 8.35 Remove the Cooling Fan
■ Install a Fan
Reverse the removal procedure to install a fan unit.
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