Rockwell Automation 2706 DL20 SERIES G USER MANUAL - Manual (Page 174)

Appendix H
Parallel Input Converters
H–2
Figures H.1 and H.2 provide block diagrams of the converter circuits.
Figure H.1
Series A and B Parallel Input Converter Block Diagram
Common
D0
D0
Common
120 VAC
Converter Circuit Input to DL20
VDC
0
5
Time
AC Input On AC Input Off
Figure H.2
Series C and Later Parallel Input Converter Block Diagram
Common
D0
D0
Common
120 VAC
Converter Circuit Input to DL20
VDC
0
5
Time
AC Input On AC Input Off
+
The Parallel Input Converter is available in two different mounting styles:
•
Catalog Number 2706–NG1 is a display mounted input converter which
mounts directly to the parallel port terminals 11A through 22. No wiring
between the display and the converter is necessary. With the 2706–NG1
installed, the overall depth of the display is increased by 0.46 inches.
•
Catalog Number 2706–NG2 is panel mounted and wired to terminals 11A
through 22 of the DL20 parallel port.
Note: A Parallel Input Converter does not fit inside the 2706–NE1 or
2706–NE2 enclosure. If a parallel input converter is used with a display in
one of these enclosures, use a panel–mounted input converter (Catalog
Number 2706–NG2) in a separate enclosure.
Terminals on both input converters are marked identically to the terminals on
the back of the DL20.
Description