Hitachi MICRO-EHV+ OBV-AIG Quick Start Manual page 6

(3) OBV-RTD terminal layout (3-wire)
Terminal layout
[RTD input]
1 5
2 6
3 7
4 8
(4) OBV-RTD terminal layout (2-wire)
Terminal layout
[RTD input]
1 5
2 6
3 7
4 8
No. Signal Function
1
1A CH1 input A
2 1b
CH1 input -
3
1B CH1 input B
4
- NC
5 3A
CH3 input A
6
3b CH3 input -
7
3B CH3 input B
8 -
NC
No. Signal Function
1
1A CH1 input A
2 1B CH1 input B
3
2A CH2 input A
4
2B CH2 input B
5 3A CH3 input A
6
3B CH3 input B
7
4A CH4 input A
8 4B CH4 input B
- 6 -
Internal circuit
0.49 mA
Pt100
1 1A
2 1b
3 1B
NC
4
Pt100
5 3A
3b
6
7 3B
NC
8
Internal circuit
0.49 mA
Pt100
1 1A
2 1B
3 2A
2B
4
3A
5
3B
6
7 4A
4B
8
NJI-669(X)