7.4 Drive Cooling Fans and Circulation Fans
338 YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual
◆ Cooling Fan Replacement: CIMR-LU40370
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 and a fan unit. 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 and
the fan unit have cooled down.
NOTICE: Prevent Equipment Damage. Follow cooling fan and circulation fan replacement instructions. Improper fan replacement
could result in damage to equipment. When installing the replacement fan into the drive, make sure the fan is facing upwards. To
ensure maximum useful product life, replace all fans when performing maintenance.
■ Removing and Disassembling the Cooling Fan Unit
1. Remove the terminal cover and front cover 1 and 2.
Refer to Removing the Terminal Cover on page 63 for detail.
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 causing an injury. Take special care when removing/reattaching the terminal covers for larger drives.
2. Remove the fan connector (CN6).
Figure 7. 26
Figure 7.26 Component Names: 40370
3. Remove the circulation fan relay cable from the hook. Remove the fan connector (CN7).
4. Remove the screws holding the fan units in place and slide the fan units out of the drive.
Figure 7. 27
Figure 7.27 Removing the Fan Unit: 40370
A – Fan Unit E – Fan Relay Cable
B – Circulation Fan Unit F – Fan Connector (CN6)
C – Circulation Fan G – Hook
D – Circulation Fan Relay Cable H – Fan Connector (CN7)
SIEP_C710616_38F_5_0.book 338 ページ ２０１５年１１月９日 月曜日 午後３時３６分
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