Connecting an process dc voltage signal, A - b, U28 u20 – Rockwell Automation 44887-PUB, 44887 Enwatch User Manual
Page 23: Mode select
Publication GMSI10-UM031C-EN-E - January 2009
Installing the Enwatch 19
Connecting an Process DC Voltage Signal
The following diagram shows the wiring from a process DC voltage signal to
the terminals of the Enwatch unit.
A - B
Network Input
RJ-45 Jack
Status LED's
RS-232
DB-9 (female)
DC Power In
J6
J5
J4
J3
JP 19
JP 18
JP 20
JP 21
JP 17
A - B
A - B
A - B
A - B
A - B
A - B
A - B
A - B
A - B
A - B
A - B
A - B
A - B
A - B
A - B
TX
RX
LK
OB
+
_
J9
J8
J11
U28
U20
1 - 2 - 3 - 4 - 5 - 6 - 7 - 8
9-10-11-12-13-14-15-16
1 - 2 - 3 - 4 - 5 - 6 - 7 - 8
9-10-11-12-13-14-15-16
3
3
2
2
1
3
3
2
2
1
3
3
2
2
1
3
3
2
2
1
Normal / Monitor
Mode Select
RV2
RV3
RV1
4
3
2
1
TYPICAL WIRING FOR PROCESS DC VOLTAGE SIGNAL
Cable shield not
connected at this end
Shield Ground
Terminal 1 - Signal
Terminal 2 - Ground
A - B
Jumper in xB position
for DC Signal
Process DC
Source