Red Lion PAX2C - Manual (Page 8)

8
4.1 POWER WIRING
1
2
AC/DC
AC/DC
4.2 VOLTAGE/RESISTANCE/CURRENT INPUT SIGNAL WIRING
IMPORTANT: Before connecting signal wires, the Input Range Jumpers and Excitation Jumper should be verified for proper position.
Process/Current
Signal
(external powered)
Voltage Signal Process/Current Signal
(2 wire requiring 18V
excitation)
Excitation Jumper: 18 V
6 7 8
+ ̶
200VDC MAX.
V-
TC
-R
TD I
N
I INPU
T
INP COMM
Current Signal (3 wire
requiring 18 V excitation)
Terminal 3: +Volt supply
Terminal 6: +ADC (signal)
Terminal 8: -ADC (common)
Excitation Jumper: 18 V
Voltage Signal (3 wire
requiring 18 V excitation)
Terminal 3: +Volt supply
Terminal 7: +VDC (signal)
Terminal 8: -VDC (common)
Excitation Jumper: 18 V
6 8
2A DC MAX.
I INPU
T
INP COMM
Load
- +
-
+
Resistance Signal
(2 wire requiring
excitation)
Terminal 3: Jumper to
terminal 7
Terminal 7: Resistance
Terminal 8: Resistance
Excitation Jumper:
1.05 mA REF.
T/V Jumper: V position
Voltage/Resistance Input
Jumper: Set per input signal
3 7 8
V EX
C
INP COMM V-TC-RTD-I
N
1.05 mA
REF.
10K MAX
Potentiometer Signal as Voltage Input
(3 wire requiring excitation)
Terminal 3: High end of pot.
Terminal 7: Wiper
Terminal 8: Low end of pot.
Excitation Jumper: 2 V REF.
T/V Jumper: V
Voltage/Resistance Input Jumper: 2 Volt
Module 1 Input Range: 2 Volt
Note: The Apply signal scaling style
should be used because the signal
will be in volts.
6 7 8 3
V-TC-RTD-I
N
I INPU
T
V EX
C
INP COMM
+ 3 WIRE TRANSMITTER
_
Vout Iout
3 7 8
Rmin=1KΩ
V EX
C
INP COMM V-TC-RTD-I
N
2V REF.
2V
INPUT
5 6 3
RT
D EX
C
V EXEC I INPU
T
2 WIRE
TRANSMITTER - +
4
COMM
CAUTION: Sensor input common is NOT isolated from user input common. In order to preserve the safety of the controller application, the sensor input
common must be suitably isolated from hazardous live earth referenced voltages; or input common must be at protective earth ground potential. If not,
hazardous live voltage may be present at the User Inputs and User Input Common terminals. Appropriate considerations must then be given to the
potential of the user input common with respect to earth common; and the common of the isolated plug-in cards with respect to input common.
4.3 TEMPERATURE INPUT SIGNAL WIRING
IMPORTANT: Before connecting signal wires, verify the T/V Jumper is in the T position.
3-Wire RTD Thermocouple 2-Wire RTD
5 7 8
RTD EX
C
V-TC-RTD-I
N
INP COMM
Sense Lead
Jumper
5 7 8
RTD EX
C
V-TC-RTD-I
N
INP COMM
Sense Lead
RTD (Excitation)
7 8
+ ̶
V-TC-RTD-I
N
INP COMM
CAUTION: Sensor input common is NOT isolated
from user input common. In order to preserve the
safety of the controller application, the sensor
input common must be suitably isolated from
hazardous live earth referenced voltages; or input
common must be at protective earth ground
potential. If not, hazardous live voltage may be
present at the User Inputs and User Input Common
terminals. Appropriate considerations must then be
given to the potential of the user input common with
respect to earth common; and the common of the
isolated plug-in cards with respect to input common.
1
2
AC/DC
AC/DC +
-
1
2
AC/DC
AC/DC
+
-
OR
AC Power DC Power
The power supplied to the meter shall employ a 15 Amp UL approved circuit breaker for AC input and a 1 Amp, 250 V UL approved fuse for DC input. It shall be
easily accessible and marked as a disconnecting device to the installed unit. This device is not directly intended for connection to the mains without a reliable means
to reduce transient over-voltages to 1500 V.