YASKAWA U1000 Series Technical Manual page 412

7.4 Cooling Fan and Circulation Fan
CIMR-U40477, 40590
■
WARNING! Electrical Shock Hazard. Do not connect or disconnect wiring while the power is on. Failure to comply can result in serious
personal injury. Before servicing the drive, disconnect all power to the equipment. The internal capacitor remains charged even after
the power supply is turned off. After shutting off the power, wait for at least the amount of time specified on the drive before touching
any components.
CAUTION! Burn Hazard. Do not touch a hot drive heatsink. Failure to comply could result in minor or moderate injury. Shut off the
power to the drive when replacing the cooling fan. To prevent burns, wait at least 15 minutes and ensure the heatsink has cooled
down.
NOTICE: Prevent Equipment Damage. Follow cooling fan and circulation fan replacement instructions. Improper fan replacement
could result in damage to equipment. Follow the instructions and replace the whole unit when replacing the cooling fan.
Removing the Cooling Fan Unit
CAUTION! Crush Hazard. Do not completely remove the cover screws, just loosen them. If the cover screws are removed completely,
the terminal cover may fall off and cause an injury. Take special care when removing and reattaching the terminal covers for larger
drives.
1.
Loosen the nine screws that hold the drive cover 1 in place and free it from the drive.
Figure 7.37
2.
Loosen the nine screws that hold the terminal cover in place and free it from the drive.
Figure 7.38
412
Nine-screw locations
Figure 7.37 Remove the Drive Cover 1
Nine-screw locations
Figure 7.38 Remove the Terminal Cover
YASKAWA ELECTRIC SIEP C710636 02B YASKAWA U1000 Technical Manual