Yaskawa Z1000U HVAC Matrix Bypass - Manual (Page 289)

Figure 7.9 Reattach the Fan Guard
5.
Turn on the power supply and set o4-03 to 0 to reset the Maintenance Monitor cooling fan operation time.
u Cooling Fan Replacement: 2o0154, 2o0192, 4o0156, and 4o0180
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 capacitor for the control power supply 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. 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: Prevent Equipment Damage. Follow cooling fan and circulation 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 Fan Guard and Cooling Fan
1.
Loosen the four screws that hold the fan guard in place.
A
A –Screw locations
Figure 7.10 Loosen the Screws
2.
Slide the fan guard toward the front of the drive to remove it from the drive.
Figure 7.11 Remove the Fan Guard
7.5 Drive Cooling Fans
YASKAWA SIEP YAIZ1D 01A Z1000U HVAC MATRIX Drive Bypass Technical Manual 289
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Periodic Inspection & Maintenance