Rockwell Automation SD3100 DISTRIB PWR SYS SD3100 DC PWR MODULE - Manual (Page 15)

Mechanical/Electrical Description 2-1
C
HAPTER
2
Mechanical/Electrical Description
Rockwell Automation SD3100 DC Power Modules are built using a Distributed Power
System PMI regulator and a high-horsepower silicon-controlled rectifier (SCR) bridge.
All components are housed in a NEMA 1 metal enclosure.
This chapter provides general information on the mechanical and electrical
characteristics of SD3100 Power Modules, followed by specific information on the
1250A, 1650A, and 3000A units.
Figure 2.1 – SD3100 Power Module System Components
–
+
DC
MOTOR
FIELD
POWER
MODULE
TO P4/
DCPT
CURRENT
XFMRS
L1
L2
L3
LINE FUSES OR CIRCUIT BREAKER
RESISTOR
SCALING
MODULE
DELTA/WYE
PHASING
XFMR
FROM DC
FWD GATE
REV GATE
SIGNALS
GATE COUPLING CIRCUITS
PGA RACK
115 VAC
ARMATURE
FEEDBACK
FWD GATE SIGNALS
REV GATE SIGNALS
TO FIELD
POWER MODULE
PMI RACK
ARMATURE
SCALING UNIT
RESOLVER
TO RESISTOR
SCALING UNIT
EXTERNAL
FIELD ISO
XFMR
FU-A
FU-B
ARMATURE POWER
STRUCTURE (S6R)
RESOLVER FEEDBACK
L1 L2 L3
SIGNALS
DRIVE I/O