Yaskawa AC Drive Z1000 Bypass Technical Manual - Manual (Page 282)

u Cooling Fan Replacement: 4A0124
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, disconnect all power to the equipment. The internal capacitor remains charged even after the power supply
is turned off. The charge indicator LED will extinguish when the DC bus voltage is below 50 Vdc. To prevent electric shock, wait for at least
the time specified on the warning label, once all indicators are OFF, measure for unsafe voltages to confirm the drive is safe prior to servicing.
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: Follow cooling fan and circulation fan replacement instructions. Improper fan replacement may cause damage to equipment. When
installing the replacement fan into the drive, make sure the fan is facing upwards. Replace all fans when performing maintenance to help
ensure maximum useful product life.
n Removing and Disassembling the Cooling Fan Unit: 4A0124
D
A
B
C
A – Fan unit
B – Cable gland C – Fan cable
D – Relay connector
Figure 7.24 Cooling Fan Replacement: 4A0124
1.
Remove the terminal cover. Refer to the User Manual packaged with the drive for details on removing the terminal
cover.
2.
Loosen the four screws on the drive cover.
CAUTION! Be sure to keep a firm grip on the drive cover when removing it from the drive. Failure to comply may result in minor
or moderate injury from the cover falling.
Figure 7.25 Loosen the Screws on the Drive Cover: 4A0124
3.
Pull forward on the drive cover to free it from the drive.
7.5 Drive Cooling Fans
282 YASKAWA ELECTRIC SIEP YAIZ1B 01D YASKAWA AC Drive – Z1000 Bypass Technical Manual