Fuses; Checking And Replacing The Dc Fuses Of A D7T Supply Module - ABB ACS880-07 Hardware Manual

Fuses

Checking and replacing the DC fuses of a D7T supply module

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WARNING!
Obey the safety instructions of the drive. If you ignore them, injury or
death, or damage to the equipment can occur.
WARNING!
Use the required personal protective equipment. Wear protective gloves and
long sleeves. Some parts have sharp edges.
1. Disconnect the drive from the AC power line and make sure it is safe to start the
work. See section
2. Undo the screws of the cover panel of the module's DC fuses and lift and remove
the panel.
3. Check the condition of the fuses and replace if necessary.
4. To replace a fuse, remove two M10×20 (17 mm) bolts which connect the DC fuse
to the DC busbar.
5. When you replace the fuse, make sure that the possible fuse indicators point to
the module to prevent a short circuit or earth fault with the cover plate.
6. Tighten two M10×20 (17 mm) bolts to 42 N·m to attach the fuse.
7. Attach the cover and close the door.
Electrical safety precautions (page 21).
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Maintenance 213
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