Emerson Keystone OM1 - EPI2 - 4-20 mA;0-10 V DC Input Setting; 4-20 mA;0-10 V DC Output Setting

June 2022
Installation, Operation and Maintenance Manual
VCIOM-01494-EN Rev. 0
18
OM1 Module Setting and Conguration
Section 3: OM1 Module Setting and Conguration
3.1.3 4 - 20 mA/0 - 10 V DC Input Setting
The setting of the input signal 4 - 20 mA or 0 - 10 V DC is done on the hardware of the
OM1 card.
By moving switches SW3 and SW5 shown below, it is possible to select 4 - 20 mA or 0 - 10 V DC.
Input setting is 4 - 20 mA by default.
!
WARNING
This configuration is an hardware setting; so it is mandatory to do it with system off
(no power supply).
Input 4 - 20 mA
In order to set input as a 4 - 20 mA signal, please proceed as follows:
SW3_1 = OFF; SW3_2 = ON
SW5 = ON
Impedance = 385 Ohm
Input 0 - 10 V DC
In order to set input as a 0 - 10 V DC signal, please proceed as follows:
SW3_1 = ON; SW3_2 = OFF
SW5 = OFF
Impedance = 200 kOhm
3.1.4 4 - 20 mA/0 - 10 V DC Output Setting
The setting of the output signal 4 - 20 mA or 0 - 10 V DC is done on the hardware of the
OM1 card.
By moving switches SW1 and SW6 shown below, it is possible to select 4 - 20 mA or
0 - 10 V DC.
Output setting is 4 - 20 mA by default.
!
WARNING
This configuration is an hardware setting; so it is mandatory to do it with system off
(no power supply).
Output 4 - 20 mA
In order to set output as a 4 - 20 mA signal, please proceed as follows:
SW1_1 = ON; SW1_2 = OFF; SW1_3 = OFF;
SW1_4 = ON
SW6 = OFF
Impedance = 250 Ohm