ABB ACQ810-04, Руководство по оборудованию, Страница: 114 / 144

114 Maintenance
Replacing the drive module
WARNING! Follow the safety instructions, page 11 . Ignoring the
instructions can cause physical injury or death, or damage to the
equipment.
Handle the drive module carefully. Make sure that the module does not fall
down when moving it on the floor and during installation and maintenance
work: Open the support legs by pressing each leg a little down and turning
it aside (1, 2). When ever possible secure the module also with chains.
Do not tilt the drive module (A). It is heavy (over 160 kg [350 lb]) and its
center of gravity is high. The module will overturn from a sideways tilt of
5 degrees. Do not leave the module unattended on a sloping floor.
1. Ensure that the drive is disconnected from the power line and all other precautions
described under Safety in installation and maintenance on page 12 have been taken
into consideration.
2. Remove the left-hand side upper and lower front covers of the drive module by
undoing the fastening screws. M4×8 combi screws, 2 N·m.
3. Disconnect the drive module busbars from the input cabling panel. Combi screw M12,
70 N·m (52 lbf·ft).
4. Disconnect the drive module busbars from the output cabling panel. Combi screw
M12, 70 N·m (52 lbf·ft).
5. Undo the screws that fasten the drive module to the cabinet at the top and behind the
front support legs.
6. Fasten the extraction ramp to the cabinet base with two screws.
7. Disconnect the power supply cable and the fibre optic cables from the external control
unit and coil them on the top of the drive module. If you have an internal control unit
(+P905), detach the control unit from the drive module by undoing the fastening
screws below the optional modules and turn the control unit and the cables aside.
(Alternatively remove the clamp plate, and disconnect the cables from the control
unit.)
1
2
3
A