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10. Pull the module carefully out onto the service platform. Keep the module secured
to a hoist or equivalent to prevent the module from falling. For information on
using the lifting device, see
hardware manual (3AXD50000210268
Reinstalling the module
￭
1.
Push the module carefully into its bay.
2.
Fasten the retaining screws at the top and the bottom of the module.
3.
Reinstall the DC busbars at the top of the module.
4.
Reconnect the coolant pipes to the module. Tighten to specified torque. R8i module
coolant connections: 15 N·m (11.1 lbf·ft). Other connections: 20 N·m (14.75 lbf·ft).
5.
Reconnect the control wiring to the module.
6.
Fill up the cooling system. For instructions, see section
the internal cooling
7.
Close the swing-out frame (if present). Reinstall all shrouds removed earlier.
Capacitors
The intermediate DC circuit of the drive contains several electrolytic capacitors.
Operating time, load, and surrounding air temperature have an effect on the life of
the capacitors. Capacitor life can be extended by decreasing the surrounding air
temperature.
Capacitor failure is usually followed by damage to the unit and an input cable fuse
failure, or a fault trip. If you think that any capacitors in the drive have failed, contact
ABB.
Converter module lifting device for drive cabinets
[English]).
circuit.
Maintenance 83
Filling up and bleeding
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