Lcl Filter - ABB ACS880-37 Hardware Manual

160 Maintenance

LCL filter

Replacing the LCL filter

WARNING! Ignoring the following instructions can cause physical injury, or
damage to the equipment:
•
Use extreme caution when maneuvering modules that run on wheels. The modules
are heavy and have a high center of gravity. They topple over easily if handled
carelessly.
•
When removing a module on wheels, pull the module carefully out of the cubicle along
the ramp. While pulling on the handle, keep a constant pressure with one foot on the
base of the module to prevent the module from falling on its back.
•
When reinserting the module, keep your fingers away from the edge of the module
front plate to avoid pinching them between the module and the cubicle. Also, keep a
constant pressure with one foot on the base of the module to prevent the module from
falling on its back.
•
Do not tilt the module. Do not leave the module unattended on a sloping floor.
•
Do not use the module installation ramp with plinth heights which exceed the
maximum height marked on the ramp. (The maximum plinth height is 50 mm [1.97 in]
when the telescopic ramp is fully retracted and 150 mm [5.91 in] when the ramp is fully
extended.)
WARNING! Obey the instructions in chapter
ignore them, injury or death, or damage to the equipment can occur.
1. Stop the drive (if running) and do the steps in section
work (page 21) before you start the work.
2. Open the cubicle door.
3. Undo the four screws of the shroud in the upper part of the cubicle. Remove the
shroud.
4. Unplug the signal connector cable on top of the module.
5. Remove the screws in the busbars on top of the LCL filter module. Be careful not to
drop the screws inside the module!
6. Remove the fan of the LCL filter module. Unplug the signal connector cable and
remove the screws in front of the fan.
7. Remove the fastening screws in the busbar behind the module.
8. Remove the two screws that fasten the bottom of the module to the base of the
cabinet.
9. Install the module pull-put ramp: lift the module pull-out ramp against the cabinet base
so that the hooks of the base go into the ramp's holes.
10. Remove the two fastening screws that fasten the top of the module to the cabinet
frame.
Safety instructions. If you
Precautions before electrical