5 Replace Cooling Fans and Circulation Fans
YASKAWA
TOEP C730600 0FC Fan Replacement Procedure
53
5.
Safety the cable through the clamps.
A - Clamps
B - Fan cable
Figure 5.84 Safety the Fan Cable through the Clamps
6.
Install the drive cover.
7.
Energize the drive and set
o4-03 = 0 [Fan Operation Time Setting = 0 h]
to reset the fan
operation time.
◆
Fan Replacement (Procedure H)
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.
Remove the drive cover.
CAUTION
Crush Hazard. Loosen the cover screws. Do not fully remove them. If you
fully remove the cover screws, the terminal cover can fall and cause moderate injury.