YOKOGAWA VZ20X, User Manual

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IM 77V01B01-01EN 5th Edition: 2023.03.07-00
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Wiring inputs
Terminal diagram
Channel wiring diagrams
Wiring 1: DC voltage/Standard signal Wiring 2: Thermocouple
Wiring 3: 3-wire resistance temperature detector
Wiring 4: 4-wire resistance temperature detector/4-
wire resistance
Terminal Layout
Analog input channels
Terminal No.
Voltage/Standard
signal
Thermocouple
3-wire
resistance
temperature
detector
4-wire resistance
temperature
detector/4-wire
resistance
1 (Use forbidden) (Use forbidden) (Use forbidden) a
2 (Use forbidden) (Use forbidden) A A
3 V- V- B B
4 V+ V+ b b
CAUTION
Do not connect to unused terminals.
CH1
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
CH2
CH3
CH4
CH5
CH6
CH7
CH8
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4