10
Ver. 1.0
SHIN HWA Eng.Co.,Ltd.
CONTROL ACTUATOR
CA01H~CA120H
2-5 Adjustment of Resistance (Potentiometer:Jp-30)
Let the position check needle indicate 50% on the scale plate manually or electrically.
Hold the potentiometer with your hand and lift up.
And hold the “Adjustment plate” and rotate it so that
the point is positioned as shown below (Fig-17.)
(Red point is marked on the “Adjustment plate”)
After that, gently place the potentiometer on its
orginal state
If positioned as shown below, 500
Ω
will be output
(The potentiometer’s output is 0 ~ 1000
Ω
)
2-6 Adjustment of Current Transmitter (CA-
□□
HF TYPE)
(Feedback Signal : DC 4 ~ 20 mA)
It is attached for “F” type of control method in “1-5 terminology” (Feedback signal : DC 4-
20mA)
The Current Transmitter is a device that changes an input resistance signal into an output
current signal.
Check if the power supply is turned on. When the power supply is on, it is normal for the
LED to flicker with an interval of 0.5 seconds.
Control the Actuator to the position of completely closing automatically.
Finish the '2-5 Adjustment of Potentiometer', and check if the control is completely done.
If the LED flickers (with a shorter interval than 0.5 seconds), it means the resistance value
is out of range
Measure the current between P1 and N1 of the terminal block, and check if it makes DC
4mA.
If DC 4mA is not made, push the R/I Converter Zero control switch for three to four seconds
to set to DC 4mA.
And let the Actuator to the status of completely opening by turning automatically.
Measure the current between the P1 terminal and the N1 terminal to check if DC20mA is
made.
Fig.-16. Position of the scale plate
Fig.-17. Adjustment of resistance
Adjustment
plate