Fuses (Option +F260); Replacing The Fuses - ABB ACS880-7407LC Hardware Manual

Semiconductor switch units
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48 Maintenance

Fuses (option +F260)

Replacing the fuses

WARNING!
Obey the safety instructions of the drive. If you ignore them, injury or death,
or damage to the equipment can occur. If you are not a qualified electrical
professional, do not do installation or maintenance work.
WARNING!
Be very careful when you remove bolts and screws. Do not drop anything inside
the cabinet.
1. Stop the drive and do the steps in section
2. Open the door of the cubicle.
3. Remove the shroud(s) in front of the fuses (option +C121).
4. Loosen the screws on top and on bottom of the fuses and carefully remove the screws
and the washers from the cabinet. Make note of the correct order of the washers on the
screws.
5. Pull the fuse blocks out.
6. Insert new fuse blocks and install the screws and washers. Make sure to keep the
washers in the original order. Pre-tighten the screws first by hand.
7. Tighten the screws to 50 N·m (37 lbf·ft).
8. Attach the shroud(s) and close the door.
Electrical safety precautions (page
24).

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