ABB ACS880-307LC, Hardware Manual

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￭ Checking and replacing the DC fuses
WARNING!
Obey the safety instructions given in ACS880 liquid-cooled multidrive
cabinets and modules safety instructions (3AXD50000048633 [English]).
If you ignore the safety instructions, 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!
Use the required personal protective equipment. Wear protective gloves and long
sleeves. Some parts have sharp edges.
1. Stop the motors connected to the drive.
2. Repeat the steps described in section Electrical safety precautions (page 36) .
3. Open the cubicle door.
4. Remove any shrouding in front of the DC fuses.
5. Remove the screws, nuts and washers from the old fuses. Write down the correct order
of the washers. Pull the fuses out.
6. Install the new fuses in reverse order. Make sure that the washers are in the correct
order. If necessary, loosen the bolts of the L-shape busbars somewhat. Retighten, after
the fuses are attached. See section
Tightening torques (page 98) .
Maintenance 69