28
M A I N T EN A N C E
Clean dust and residues near the module and
close to the fan outlet. Check wires and
connection terminals for corrosion. Tighten
screws connecting power cables and the module
to a torque of 2 N⋅m.
7.4 Replacing the fan
WARNING:
Only a qualified electrician should
replace the fan inside the module. Only replace
the fan when the equipment is turned off and
fully de-energized. Wait 20 minutes after
disconnecting the equipment for capacitors to
discharge.
Replace the fan on your module if it has been
damaged, if the system is overheating or after
40 000 hours of operation. You can order fan
replacement kits from your ABB supplier.
To replace the fan:
•
Unscrew the three screws on the front cover of
the module as displayed in Figure 25
•
Take out the old fan, disconnect its power
socket
•
Screw the new fan in, orienting it to evacuate
hot air out of the module
•
Plug the new fan into the power socket
•
Replace the front cover of the module as
displayed in Figure 25
•
Reset the fan operating hours on the Wi-Fi user
interface (Section 3.7.5)
7.5 Troubleshooting
To solve technical issues,
contact your ABB service provider at
be-bess.services@hitachi-powergrids.com
—
Figure 25: Replacing the fan