ABB ACS880-17, Hardware Manual

Page: 106 / 244

106 Electrical installation
Removing the inverter module
To allow more room for cabling work, the inverter module can be removed completely
instead of only the fan carriage.
Refer to the drawings below.
WARNING! Obey the instructions in chapter Safety instructions . If you
ignore them, injury or death, or damage to the equipment can occur.
1. Do the steps in section Precautions before electrical work (page 21 ) before you start
the work.
2. Open the cubicle door.
3. Remove the shroud at the top of the cubicle.
4. Detach the terminal block [X50] at the top of the module.
5. Detach the DC busbars from the module. Make note of the order and position of the
screws and washers.
6. Detach the wiring connected to the terminals on the front of the module (including fiber
optic cabling). Move the disconnected wiring aside.
7. Attach the module extraction ramp (included) to the base of the cabinet so that the
tabs on the mounting bracket enter the slots on the ramp.
WARNING! Do not use the ramp included in the drive delivery with other plinth
heights than what the drive has.
8. Remove the two screws at the bottom front of the module.
WARNING! Before you proceed, make sure the cabinet is level, or chock the
wheels of the module.
9. Remove the two screws at the top front of the module.
10. Pull the module carefully out along the ramp. While pulling on the handle with your
right hand, keep a constant pressure with one foot on the base of the module to
prevent the module from falling on its back.
11. Move the module into a safe location outside the immediate work area and make sure
it cannot topple over. Chock the wheels of the module if the floor is not completely
level.
12. Repeat the procedure for the other inverter modules.