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Service Manual Combics
4-20mA / 0-10V interface, Option (A9)
Slot for UNICOM 4-20mA /0-10V Interface.
The operating mode setting is carried out via switches SW1-1 and SW1-2.
The PCB factory setting is 4-20mA operation. The switch must be reset to enable the card to
operate via 0-10V.
Important!
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Switch settings must be made when replacing the PCB.
The following lists the configuration options:
Connection Function
1 I_out(+)
2 I_in(-)
3 V_out(+)
4 V_in (-)
5 GND galvanic isolation
6 GND galvanic isolation
SW1-1 SW1-2 Mode
Open Open 4-20mA
Closed Open 0-10V
Open Closed 0-20mA
Closed Closed 0-24mA
Interface Description | Unicom PCBs