ABB ACS800-67LC, Hardware Manual

Page: 95 / 154

Maintenance 95
Converter module

Replacing the converter module
WARNING! Read and follow the instructions in chapter Safety
instructions . Ignoring the instructions can cause physical injury or death,
or damage to the equipment.
Note: Performing this action requires following accessories that are not included in the
delivery as standard: winch (not available from ABB) and installation stand (order code:
3AUA0000078146).
1. Ensure that the converter is disconnected from the power supply network and all other
precautions described in section Safety in installation and maintenance , page 12 have
been taken into consideration.
2. Disconnect the external control cables from connectors X1 and X2 at the right-hand
side of the cabinet.
3. Remove the shrouds of the cubicle.
4. The cubicles with swing-out frame: remove the screws on the shroud of the swing-out
frame. Open the swing-out frame.
5. Close the inlet and outlet valves of the liquid cooling unit, and drain the cooling circuit
(see Draining the internal cooling circuit on page 117 .) Note: Drain and bleed valves
have locking handles. Release the mechanism before turning.
6. Decouple the cooling circuit inlet and outlet pipes from the module: Unscrew the
locking nut until fully open and pull the pipe out.
WARNING! When re-attaching the coolant hoses, do not
overtighten the outer nuts of the union - leave 2…3 mm
(0.08…0.1 in.) of thread visible. Overtightening will break the
hose.
7. Unplug the fiber optic cables from the module.
8. Disconnect the DC output busbars from the module. Beware not to drop the screws
inside the module!
9. Remove the module mounting screws at top (two at top, two at bottom).
10. Fasten a module installation stand to the frame of the cubicle. For instructions, see
page 98 .
11. Pull the module out enough to attach a lifting chain to the front of the module.
12. Pull the whole module onto the installation stand. Keep the pipes and wires away from
the sharp edges and be careful not to damage the coolant inlet.
13. Attach a second lifting chain to the rear of the module. Ensure that the lifting chains
are evenly adjusted.
14. Lift the module onto a pallet or other platform for transportation.
WARNING! The module is heavy and its centre of gravity is high. The module
topples over easily. Never maneuver it in upright position untied. It is
recommended to lay the module on its side before moving the pallet.
15. Before installing a new module, check and service the quick connector through which
the AC output busbars of the cubicle connect to the module. Clean all contact surfaces
2 mm