Figure 29: Removing the Fan
6. Remove the fan from the holder.
7. Install the new fan in reverse order.
8. Restore power.
Capacitors
Reforming the Capacitors
The capacitors must be reformed if the drive has been stored
for a year. For information on reforming the capacitors, refer
to Guide for Capacitor Reforming (3AFE68735190 [English]),
available on the Internet (go to http://www.abb.com and enter
the code in the Search eld).
Power Connections
WARNING
Read and follow the instructions in chapter Safety on page 15.
Ignoring the instructions can cause physical injury or death, or
damage to the equipment.
1. Stop the drive and disconnect it from the power line. Wait
for ve minutes to let the drive DC capacitors discharge.
Ensure by measuring with a multimeter (impedance at
least 1 Mohm) that there is no voltage present.
2. Check the tightness of the power cable connections.
3. Restore power.
6
OM 1190-1 • MD4 VFD 100 www.DaikinApplied.com
maInTenanCe and Hardware dIagnosTICs
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