Rockwell Automation 8720MC 8720MC Regenerative Power Supply User Manual - Manual (Page 52)

4-14 Wiring
Unit
Rated Current
8720MC-RPS027
50 Amps
8720MC-RPS065
100 Amps
The table assumes the maximum rated RPS current is required. The
8720MC drive user manual, publication 8720-RM001C-US-P
provides fuse data for specific drive/RPS combinations in chapter 4.
Also, as a measure against ground fault, install a fuse to protect the
DC bus. The recommended fuses are as follows.
For Model 8720MC-RPS065BM and 8720MC-RPS065BS units:
FERRAZ SHAWMUT A130URD70LI0100
For Model 8720MC-RPS027BM unit: FERRAZ SHAWMUT
A100P50-4
Installing Line Filters
If an 8720MC-RPS Regenerative Power Supply is used as a unit
conforming with the requirements of CE Mark, install a line filter
for AC input power on each AC incoming power line. Table 4.7
shows the designated line filters for AC input power. The
8720MC-RPS Regenerative Power Supply listed in Table 4.7 have
CE marks.
Installing Harmonic Filter
Install an adequate harmonic filter as shown in Figure 4.1, 4.2 or
4.3 to remove higher order harmonics generated by switching
operation of Power Modules, from AC input power. Also be sure to
connect the harmonic filter on the incoming AC line side of the AC
contactor. The following are the designated harmonic filter and
wire size.
8720MC-HF-B2
Wire size: 3.5 square millimeters
Installing Input Fuses
Install a fuse on the AC incoming power line. The following is the
recommended fuse for the single unit.
Gould A4J or equivalent (Class J Fuse)
Rated current of fuse unit is shown in Table 4.6.
Table 4.6
Rated Current of Fuses for Unit
Table 4.7
Designated Line Filter for AC Input Power
8720MC-RPS
Regenerative
Power Supply Unit
When units are used
for both of the power
supply mode and
power regeneration
mode
8720MC-RPS065BM/
8720MC-RPS065BS
Schaffner: FN3100-80-35
Soshin Electric: HF3080C-TOA
8720MC-RPS027BM
Schaffner: FN3100-35-33
Soshin Electric: HF3030C-
TMA