5.4.4.2 Multiload Ii 4 - 20 Ma Input Wiring - Toptech MultiLoad II EXL Installation Manual

CHAPTER 5– CONNECTING FIELD DEVICES TO THE I/O BOARD
5.4.4.2 MultiLoad II 4 – 20 mA Input Wiring
I/O DIGITAL/ I/O 2 METER
ANALOG METER 0
IO_DA TB6
✓
I+ 1
4-20 mA
✓
IN
I- 2
V+ 1
COM 2
4-20 mA
OUT
IOUT 3
N/A 4
*
Note: The 4-20 mA receiver does not contain a voltage source. The loop must be powered either by the transmitter or by an external power
supply. The I/O Board adds 75 Ohms to the loop.
†
Note: "4-20 mA IN.I-" MUST CONNECT TO LOOP SUPPLY- !
‡
Note: A separate supply powers the transmitter. 4-20 mA IN.I+ must be connected to the transmitter's current output.
DO NOT CONNECT "4-20 mA IN.I+" TO LOOP SUPPLY+ !
44
MultiLoad II/ RCU II Explosion Proof Lite (EXL) Installation Guide - Part # 6070
4-20 mA-IN
4-20mA
METER 1
i
%
4-20 mA-IN
4-20mA
4-20 mA IN.I+
i
4-20 mA IN.I-
%
4-20 mA-IN
4-20mA
4-20 mA IN.I+
i
4-20 mA IN.I-
%
4-20 mA IN.I+
4-20 mA IN.I-
†
†
†
4-20 mA
I-
I+
+
* +
- -
4728 BS&W
4-20 mA
+
4-20
mA-IN
-
+
EXT.
* +
‡
-
INVALCO WCM 7300
4-20 mA
+
LOOP
-
-
24 GND
+
24+
*
+
‡
-