Yaskawa AC Drive Z1000 Bypass Technical Manual - Manual (Page 290)

u Cooling Fan Replacement: 2A0343 and 2A0396
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: 2A0343 and 2A0396
1.
Remove the terminal cover and front cover.
2.
Remove the fan connectors (CN6, CN7).
A
B
D
E
C
A – Fan unit
B – Fan relay cable
C – Fan connector (CN6) D – Circulation fan relay cable
E – Fan connector (CN7)
Figure 7.44 Cooling Fan Replacement: 2A0343 and 2A0396
3.
Remove the screws holding the fan unit in place and slide the fan unit out of the drive.
CAUTION! Injury to Personnel. Use two hands to remove the fan unit. Failure to comply may cause the fan unit to fall, resulting in
minor to moderate injury.
Note: Use a magnetized screwdriver when removing the screws to prevent the screws from falling.
Figure 7.45 Remove the Fan Unit: 2A0343 and 2A0396
4.
Remove the fan guard and replace the cooling fans.
Note: Do not pinch the fan cable between parts when reassembling the fan unit.
7.5 Drive Cooling Fans
290 YASKAWA ELECTRIC SIEP YAIZ1B 01D YASKAWA AC Drive – Z1000 Bypass Technical Manual