ABB ACS880-07, Hardware Manual

Page: 160 / 274

Supply and inverter modules
￭ Replacing a frame D7T supply module
WARNING!
Only qualified electricians are allowed to do this work. Read the complete safety
instructions of the drive. Ignoring the instructions can cause physical injury or
death, or damage to the equipment.
WARNING!
Use extreme caution when maneuvering the supply module. It is heavy and have
a high center of gravity. Ignoring the following instructions can cause physical
injury, or damage to the equipment.
• Wear appropriate safety equipment.
• Be careful when removing bolts and washers on top of the module not to drop anything
inside the module.
• Use a lifting device:
• Attach the lifting device securely to the module lifting eyes before removing the
module fastening bolts. Keep the lifting device attached to the module until you
have lifted the module onto a pallet and made sure that the module is supported
and cannot topple over.
• Lift a replacement module only with a lifting device. Keep the lifting device attached
to the module during the work until you are tighten the module fastening bolts.
• Do not tilt the module. Do not leave the module unattended on a floor.
• When you push the replacement module into the cabinet, keep your fingers away from
the edge of the module edges to avoid pinching them between the module and the
cabinet.
Obey these instructions for replacing the module. Refer to the drawings below.
1. Stop the drive and do the steps in section Electrical safety precautions (page 19) before
you start the work.
2. Open the cubicle door.
3. Remove the shroud.
4. Unplug the plug connector on top of the module (a), and the plug connector and fiber
optic connector in front of the module (b).
5. Remove the lower support bracket of the module.
6. Remove the fastening bolts of the DC busbars (a) and the DC busbars carefully. Do
not drop anything inside the module. Remove the fastening bolts of the AC busbars (b).
7. Remove the cooling fan plug connector (a) and the cooling fan (b). See also section
about the cooling fan replacement.
8. Remove the side fastening screws of the module on the top (a) and bottom (b).
9. Attach a lifting device to the lifting eyes of the module (a).
10. Remove the upper support brackets of the module (a).
11. Pull the module out of the cabinet carefully. Keep the weight on the lifting device
constantly.
12. Lift the module down onto a pallet.
13. Keep the lifting chain attached to the module and attach the module safely to the pallet.
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