Rockwell Automation 1395 DC Drive, 800-1250 Hp, FRN 5.XX-9.30 - Manual (Page 17)

Chapter 2
Hardware Description
2-4
DC Current Sensing – DC overcurrent sensing is provided using a DC
transducer.
Figure 2.3
AB0678A
Snubber
Snubber
Snubber
Snubber
Snubber
Snubber
Snubber
Snubber
Snubber
Snubber
Snubber
Snubber
(–) Bridge A22 24FA
24FB
1R
4F
21FA
21FB
4R
1F
(+) Bridge A21
25FA
25FB
3R
6F
6R
3F
22FA
22FB
26FA
26FB
23FA
23FB
2R
5F
5R
6F
S1
To TB5 To Feedback Board
PR
M1
A2 A1
A2 A1
Fld + Fld –
TB7
FCT
L1A
L3A
Field
Bridge
To Field Pulse Transformer
& Snubber Board
To Feedback Board
TB1–8&9
To Power Stage
Interface Board
To Feedback Board
To Armature Pulse
Transformer Board
To Armature Pulse
Transformer Board
To Armature Pulse
Transformer Board
To Armature Pulse
Transformer Board
To Armature Pulse
Transformer Board
To Armature Pulse
Transformer Board
M1