Yaskawa AC Drive Z1000 Bypass Technical Manual - Manual (Page 273)

u Cooling Fan Replacement: 2A0011 to 2A0059, 4A0005 to 4A0040, and 4A0052ooB
When the heatsinks are externally mounted, these models enable access to the fans from the back or top of the drive when the
fans need replacing.
The drive can also be dismounted when replacing the fans. When dismounting the drive, be careful not to damage the mounting
flange gasket. If the gasket is damaged, contact a Yaskawa representative or the nearest Yaskawa sales office.
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 replacement instructions. Improper fan replacement could cause damage to equipment. Make sure the fan is
facing upwards when installing the replacement fan into the drive. Replace all fans when performing maintenance to help ensure maximum
useful product life.
n Removing the Cooling Fan Finger Guard and Cooling Fan: 2A0011 to 2A0059, 4A0005 to
4A0040, and 4A0052ooB
1.
Depress the right and left sides of the fan cover tabs and pull upward. Remove the fan cover from the top of the drive.
The following figure illustrates a drive with a single cooling fan.
Note: The cooling fan and finger guard are mechanically joined.
Figure 7.3 Remove the Cooling Fan Finger Guard: 2A0011 to 2A0059, 4A0005 to 4A0040, and 4A0052ooB
2.
Unplug the protective tube and relay connector from the cooling fan unit.
Figure 7.4 Unplug the Protective Tube and Relay Connector: 2A0011 to 2A0059, 4A0005 to 4A0040, and 4A0052ooB
3.
Slide the protective tube towards the cooling fan to expose the connector. Unplug the connector.
7.5 Drive Cooling Fans
YASKAWA ELECTRIC SIEP YAIZ1B 01D YASKAWA AC Drive – Z1000 Bypass Technical Manual 273
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Periodic Inspection & Maintenance