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C) Fail position setting

- User can select the fail position of the actuator in case of control signal failure by adjusting the DIP switches as follows:

NOTE: If not specified, the factory setting of the output signal is 4 - 20mA.

D) Special signal setting for fully open and fully closed

E) Auto setting

This function is used for automatic setting of the PCU card to the predefined limits.

While the actuator is corrected mounted on the valve, check input power, input and output signal connections.

Press ASCAN button once, regardless of the position of the actuator, then the actuator will perform the Auto Setting motion:

1) The blue LED flicker

2) Opening (the red LED flickering) for 5 seconds

3) Pause for 2 seconds

4) Fully closing (the green LED flickering)

5) Pause (the green LED on) for 3 seconds

6) Fully opening (the red LED flickering)

7) Pause (the red LED on) for 3 seconds

8) Moving back to the previous position

NOTE: Since the unit is already set at the factory, no further setting is

required unless the user has adjusted the mounting state of Limit Switch or the Potentiometer.

F) Manual operation

This function allows the user to manually operate the actuator.

To access this function, press the ZERO (black) and SPAN (white) buttons simultaneously for 2 seconds and the yellow LED will be lit to

indicate that the actuator is in Manual Operation mode

Pressing the ZERO button will move the actuator to close and pressing the SPAN button will move the actuator to open

If no operation occurs within 5 seconds, the PCU automatically terminates the Manual Operation mode or alternatively press the ZERO

and SPAN buttons simultaneously for 2 seconds. In either case, the yellow LED will be lit off to indicate the termination of the Manual

Operation Mode.

NOTE: During the manual operation mode, the input signal is ignored.

Know-how makes the difference

FAIL CLOSE

Fail Position

Setting

Switch

FAIL OPEN

Fail Last Position

CH 2 Switch

CH 1 Switch

Auto-Full Switch

Open when fail

Close when fail

Auto-Full Switch

(Switch 3) On (up)

Auto-Full Switch

(Switch 3) Off (down)

Signal: 4.3mA

Fully Closed

Signal: 19.7mA

Fully open

Signal: 4.0mA

Fully Closed

Signal: 20.0mA

Fully open

ZERO

SPAN

Button

ASCAN

Button