Hitachi MICRO-EHV+ OBV-AIG, Quick Start Manual

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- 6 - NJI-669(X)
(3) OBV-RTD terminal layout (3-wire)
Terminal layout No. Signal Function Internal circuit
[RTD input]
4
B
4
A
3
B
3A
3
B
3
b
3
A
2
B
2
A
1
B
1
A
1B
1
b
1
A
3
-w
ir
e
2
-w
ir
e
3
-w
ir
e
2
-w
ir
e
1
2
3
4 7
8
5
6
1 1A
CH1 input A
In
te
rn
a
l c
irc
u
it
1A
1B
1b
NC
0.49 mA
Pt100
3A
3B
3b
NC
Pt100
1
2
3
4
5
6
7
8
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
(4) OBV-RTD terminal layout (2-wire)
Terminal layout No. Signal Function Internal circuit
[RTD input]
4
B
4
A
3
B
3A
3
B
3
b
3
A
2
B
2
A
1
B
1
A
1B
1
b
1
A
3
-w
ir
e
2
-w
ir
e
3
-w
ir
e
2
-w
ir
e
1
2
3
4 7
8
5
6
1 1A CH1 input A
In
te
rn
a
l c
irc
u
it
1A
2A
1B
2B
0.49 mA
Pt100
3A
4A
3B
4B
1
2
3
4
5
6
7
8
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