ABB ACS 6000 - Changing Clamp Diodes in 3;5 MVA Phase Modules; Required Tools and Accessories; Changing Procedure

ABB
ACS 6000 Maintenance Manual 3BHS202077 ZAB E01 Rev. C 6-1 (4)
Chapter 6 - Changing Clamp Diodes
in 3/5 MVA Phase Modules
See section 4.1 Required Tools and Accessories .
1 Remove the phase module from the cabinet. Follow section
4.2
Removing a Phase Module
.
2 Place the module on a flat surface.
3 To change the NP diode the phase module needs to be turned onto
the side where there are no water connections.
Unscrew the retaining brackets of the fastening bolts (see
Figure 6-1 )
before turning the phase module over or place the phase module on
two wooden beams (see
Figure 6-2 ) to prevent damaging the
brackets.
Figure 6-1 Phase Module with Fastening Bolts Removed
6.1 Required Tools and Accessories
6.2 Changing Procedure