10-Pin Connector Wiring Diagrams - Omega Platinum Series User Manual

3.2 10-PIN Connector Wiring Diagrams

The 10-pin universal input connector pin assignments are summarized in Table 4.
Pin
Code Description
No.
1 ARTN Analog return signal (analog ground) for sensors and remote Setpoint
2 AIN+ Analog positive input
3 AIN- Analog negative input
4 APWR Analog power reference
5 AUX Auxiliary analog input for remote Setpoint
6 EXCT Excitation voltage output referenced to ISO GND
7 DIN Digital input signal (latch reset, etc.), Positive at > 2.5V, ref. to ISO GND
ISO
8 Isolated ground for serial communications, excitation, and digital input
GND
9 RX/A Serial communications receive
10 TX/B Serial communications transmit
Table 5 summarizes the universal input pin assignments for different sensor inputs. All sensor selections
are firmware-controlled and no jumper settings are required when switching from one type of sensor to
another.
Diff Process
Pin
Voltage Voltage
(2)
1 Vref - Rtn
2 Vin + Vin +/-
3 Vin -
(2)
4 Vref +
5
(1)
Remote Setpoint cannot be used with RTD inputs.
(2)
Reference voltage required for Ratio-metric mode only.
(3)
2 Wire RTD Requires external connection of Pin 1 and Pin 4.
Figure 3 shows the wiring diagram for connecting RTD sensors. For 2 wire RTD sensors use a jumper
wire, included in the provided wire kit, to connect pins 1 and 4.
Table 4. 10-Pin Input Connector Wiring
Table 5. Sensor Pin Assignments
Process 2-Wire
Current RTD
(3)
I+ RTD1+
I-
RTD1-
1 2 3 4 5
Figure 3. RTD Wiring Diagram
3-Wire 4-Wire
Thermistor
RTD RTD
RTD2- RTD2+
RTD1+ RTD1+ TH+
RTD2- TH-
RTD1- RTD1-
10
6 7 8 9
Hardware Setup 6
(1)
Remote
Setpoint
Rtn
V/I In