ABB ACS880-37LC, Hardware Manual, Page: 127 / 202

Supply and inverter modules
￭ Replacing a supply or inverter module
WARNING!
Make sure the replacement module has exactly the same type code as
the old module.
WARNING!
Obey the safety instructions of the drive. If you ignore them, injury or death,
or damage to the equipment can occur.
WARNING!
Make sure that the replacement module has exactly the same type code as the
old module.
WARNING!
Beware of hot coolant. Do not work on the liquid cooling system until the pressure
is lowered down by stopping the pumps and draining the coolant. High-pressure
warm coolant (6 bar, max. 50 °C) is present in the internal cooling circuit when it
is in operation.
WARNING!
Use the required personal protective equipment. Wear protective gloves and long
sleeves. Some parts have sharp edges.
Removing the module
1. Repeat the steps described in section Electrical safety precautions.
2. Remove the shrouding in front of the module.
3. Undo the locking screws of the swing-out frame (if present) and open it.
4. Unplug the wiring from the module and move it aside. Use cable ties to keep the wiring
out of the way.
5. Remove the L-shaped DC busbars at the top of the module. Make note of the orientation
of the screws as well as the order of the washers.
Maintenance 127