Rockwell Automation SD3100 DISTRIB PWR SYS SD3100 DC PWR MODULE - Manual (Page 47)

Maintenance and Troubleshooting 4-5
• Bridge fan and bridge fan door filter
• Slide-in Fan
• Power fuses
• Power fuse assembly
• AC input line fuses
• Snubber assembly
4.3.2 PMI Regulator
The PMI modules and the PMI rack are serviced by removing the damaged modules
or by replacing the complete PMI rack. The PMI rack is attached by four retaining
screws through its backplane and a ground lead to the panel ground.
Refer to the Power Module Interface Rack and Modules instruction manual, S-3008,
for technical information and replacement part numbers.
4.3.3 Parallel Gate Amplifier
The PGA modules and the PGA rack are serviced by removing the damaged modules
or by replacing the complete PGA rack.
Refer to the Parallel Gate Amplifier instruction manual, S-3045, for technical
information and replacement part numbers.
4.3.4 Field Power Module
The Field Power Module can be replaced by disconnecting the power and signal
cables and unfastening the mounting screws from the mounting panel. Mount the
replacement module and connect the power and signal cables to it.
Refer to Appendix C for replacement part numbers.
4.3.4.1 Replacing Internal Field Power Module AC Input Fuses
Internal Field Power Module AC input fuses may be replaced by removing the Field
Power Module’s cover. The fuses on the 60A unit are held in place by retaining washer
nuts. The fuses in the 15A unit are retained by pop-in fuse clamps.
Input fuse ratings are listed in Table 3.1. Replace Field Power Module fuses only with
fuses of the same type and rating as those originally supplied. Refer to Appendix C for
Rockwell replacement part numbers.
Table 4.1 – Field Power Module Input Fuses
Power Module
Part No.
Fuse
Number
Fuse
Ratings
Fuse Current
Interrupt Rating
805405-3R 1FU, 3FU 20A, 600V 200 kA
805405-5R 1FU, 3FU 90A, 700V 200 kA