Maintenance 65
Replacing the LCL filter cooling fans
WARNING! Obey the safety instructions on page 9. If you ignore the
instructions, physical injury or death, or damage to the equipment can
occur.
1. Before you start, stop the inverter and do the steps in Performing electrical work on
page 12.
2. Open the ISU cabinet cover plates.
3. Disconnect the power and control cables of the LCL cooling fans.
4. Loosen the locking screws of the LCL cooling fan.
5. Pull the fan out.
6. Install the new LCL cooling fan.
7. Tighten the screws.
8. Connect the power and control cables of the LCL cooling fans.
9. Attach the ISU cabinet cover plates.
10. Apply auxiliary power to the inverter and check that all of the cooling fans start.
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