Figure 21. Connecting 3-Way Valve To Neptune Meter - Truck Lp Gas Installations - Veeder-Root EMR3 Installation Manual

EMR3 Truck Installation
Cord Grip (Typ)
Power Connections
IB Terminal Signal Wire Color
Ground Truck Ground White
V+ 12 or 24 Vdc (ACC) Red
Diagnostic LED
RS-232 Cable Connections
IB Terminal Wire Color
RX Green
TX Black
Ground White
DTR* Red
*Red is the data terminal read (DTR)
signal and is cut off - not used for
most applications.
Printer Cable Connections
IB Terminal Wire Color
Ground White
Power Red
PRN-RX Green
PRN-TX Black
12 AWG Barrier Ground
Table 8.- Intrinsically Safe Wiring for IB
Input
Display Head 1
Display Head 2
(or optional Remote Dis-
play)
Input
Bushing
Power
Nut
Pulse
Voltage
Selector
Start DH1
Switch
Inputs
Start
Start DH2
Pulse
DH1
Start
Pulse
DH2
Pulse
Output
DH1
Pulse
Output
DH2
IB
Network
RS-232
Serial
Port
Printer
Interface
Relay
Display
2
Head
Relay
No. 1
1
Relay
Display
2
Head
Relay
No. 2
1
Figure 22. Wiring the Interconnection Box
Terminal Label
IB-A
IB-B
Gnd
Pwr
IB-A
IB-B
Gnd
Pwr
Pulse Ouput voltage jumper.
Set jumper between Input V
and 5, 12, or 24 V as required.
Ground
V+
GP- IN
GP- OUT
Input V
5V Out
12V Out
24V Out
Ground
Stop DH1
Ground
Stop DH2
Ground
Start SP1
Ground
Start SP2
Ground
POUT-1
Ground
POUT-2
RS-485B
RS-485A
Ground
RX
TX
Ground
Ground
Power
PRN-RX
PRN-TX
COM
N.O.
COM
N.O.
COM
N.O.
COM
N.O.
Intrinsically safe circuitry cover
shown open to left for access
to Display Head terminal blocks
30
Installing the Interconnection Box (IB)
CHASSIS GND ONLY
DH1
IB-A
IB-B
GND
PWR
DH2
IB-A
IB-B
GND
PWR
CHASSIS GND ONLY
emr/trkib3wir.eps
Connect Drain wire
of Display Head 1
cable to ground clamp
Display Head 1
Cable Connections
IB Terminal Wire Color
IB-A Green
IB-B White
GND Black
PWR Red
1/4"
1/8"
Insert
screwdriver
to insert
or remove
wire
Cable (and drain wire)
from Display Head 2 (or
optional Remote Display)
is wired exactly as shown
for Display Head 1 above