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3.1.2 WIRING DIAGRAM FOR INPUT Ma
(±0 to 20) mA / (4 to 20) mA
-
+ EXC
+ OUT
- mA
+ mA
2 wire connection
[ only (4 to 20) mA ]
1
8
EXTERNAL
EXCITATION
SENSOR
(4 to 20) mA
- EXC
+ EXC
+ OUT
- OUT
- mA
+ mA
4 wire
connection
1
8
SENSOR
(0 to 20) mA
(4 to 20) mA
+ mA
+ EXC
+ OUT
1
8
SENSOR
(4 to 20) mA
2 wire connection
[ only (4 to 20) mA ]
External Excitation
Internal Excitation
- EXC
+ EXC
+ OUT
- OUT
- mA
+ mA
1
8
EXTERNAL
EXCITATION
SENSOR
(0 to 20) mA
(4 to 20) mA
4 wire
connection
EXTERNAL
EXCITATION
-
+ EXC
+ OUT
COMM
- mA
+ mA
SENSOR
(0 to 20) mA
(4 to 20) mA
1
8
3
wire connection
+ EXC
+ OUT
COMM
- mA
+ mA
1
8
SENSOR
(0 to 20) mA
(4 to 20) mA
3
wire connection
If the excitation supplied by the unit to
the sensor has to be (5 or 10) V connect
the +EXC wire to PIN3 instead of PIN2