YOKOGAWA CENTUM CS, Technical Information

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3. Cabling
3-82
TI 33J01J10-01EN
l
When receiving dry contact signals (Input frequency: 0 to 10 kHz)
Select “Without Shunt Resistor” (SW1: OFF) in the IOM builder. Also install two 510 Ω shunt
resistor modules on the shunt resistor unit (Model:A2EXR001). The total resistance value will be
1.02 kΩ.
When connecting the field signal via the terminal board (A2BM4), it can be substituted by
connecting a shunt resistor unit between terminal-B and C of the external terminal block.
The following figure shows the circuit diagram.
A2SAP105
SW1
4 kΩ
SW2
FIL
12 V DC/24 V DC
IN

A
IN

B
IN

C
IN

D
Transmitter
1.02 kΩ
F030708.ai
Direct field wiring to base plate
IN

C
IN

D
DIN rail
Signal Line
Shunt resistor unit
(A2EXR001)
Terminal block of A2BN3D
Shunt resistor module

A

B 510Ω
510Ω
IN

A
IN

B

: 1 to 16
F030726.ai
A2SAP105
Field wiring via terminal board
Dedicated cable
＋
A2BM4
External
terminal block
SW1
4 kΩ
SW2
Input filter
12 V DC/24 V DC
IN

C
Transmiter
IN

A
1.02kΩ
IN

B
IN

C
IN

B
DIN rail
Signal Line
Shunt resistor unit
(A2EXR001)
External terminal block
Shunt resistor module

A

B
510Ω
510Ω
IN

A

: 1 to 16
Figure When receiving dry contact signals (Input frequency: 0 to 10 kHz)
Oct. 5, 2018-00