Reversal Acting Switch (Ch2); Ch2 Dip Switch - Emerson EIM PCU REV A4 Installation And Maintenance Manual

Service Instructions
HQ-401-0217
Figure 9
zero
close
4.9

Reversal acting switch (CH2)

Generally, clockwise-rotating direction of actuator is to close but if user wants reverse
action, please do the following:
Switch "5 " Up
Switch "5 " Down : Signal : 4mA Full Closed
Put the actuator to 50% open (or close) position, and push the AUTO SETTING button.
Supplying 4-20mA, check operation and rotating direction.
Figure 10
zero
close
Function of a PCU
CH1 DIP switch
span
AUTO
open
SETTING
LD1 LD2 LD3 LD4
VIEW C
: Signal : 20mA Full Closed
Signal : 4mA Full Open
Signal : 20mA Full Open

CH2 DIP switch

span
AUTO
open
SETTING
LD1 LD2 LD3 LD4
VIEW C
Section 4: Function of a PCU
OPEN
AUTO
CLOSE
FAULT
F CLOSE
CH1
F OPEN
A FULL
CH1
CH2
1 2 3 4 5
OPEN
AUTO
CLOSE
FAULT
F CLOSE
CH2
F OPEN
A FULL
CH1
CH2
1 2 3 4 5
February 2017
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