Cooling Fan Replacement: 4A0515 And 4A0675 - YASKAWA A1000 Technical Manual


Installing the Cooling Fan Unit
1.
Reverse the procedure described above to reinstall the cooling fan unit.
Figure 7.31
2.
Reattach the covers and digital operator.
3.
Turn the power supply back on and reset the cooling fan operation time for the Maintenance Monitor by setting
o4-03 to 0.
 Cooling Fan Replacement: 4A0515 and 4A0675
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 69
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 connectors for the cooling fan relay and the circuit board cooling fan.
Figure 7.32
A – Fan Unit
B – Fan Relay Connector
C – Circuit Board Cooling Fan
D – Circuit Board Cooling Fan Case
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
Figure 7.31 Installing the Cooling Fan Unit: 4A0414
A
C
D
E F G
Figure 7.32 Component Names: 4A0515 and 4A0675
7.4 Cooling Fan and Circulation Fan
for detail.
B
F E
E – Hook
F – Circuit Board Cooling Fan Connector
G – Circuit Board Cooling Fan Cable
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