8
Ver. 1.0
SHIN HWA Eng.Co.,Ltd.
CONTROL ACTUATOR
CA01H~CA120H
2-4 Limit switch adjustment (In RB, SB option)
Position limit switch adjustment method (In viewing of output shaft, it is based on clock
direction-Open)
①
In Fig-8, upon 2ea of limit switch LS2, LS4 are close direction (clock), below 2ea limit
switch LS1, LS3 are open (Counter-clock)
direction
②
Limit switch LS1, LS2 are limit switch for
position control and LS3, LS4 are limit switch
for signal control.
③
It should be matched between dial gauge and
damper operation direction.
For example if the damper direction is the
closing direction, the dial gauge should be 0%
④
Actuator should be operated with complete
close by auto and manual method.
⑤
Dial gauge should be matched into 0% exactly.
Unscrew set screw which is fixed to needle, and
adjust it into 0%
⑥
Before adjustment of built-cam, loose cam edge’s
bolt (cam axis bolt from Fig-8.), keep condition
that cam may be operated manually.
⑦
The
adjustment
of
limit
switch(LS2)
for
close(clock direction) position control limit switch
(LS2) should be slightly rotated into arrow
direction and matched until there are happening on small sound and move into LS2 CAM
with arrow (clock) direction by using flat screw driver when dial gauge indicates in 0%
(note Fig-10,11)
(Please check whether stop position is correct or not after moving actuator with electric
power supply.)
⑧
In Case that actuator stop position is not exact, please do above process 1-2 times
repeatedly and match.
Fig-9. Procedure of adjusting
the dial
Fig-10. How to adjust
Limit switch cam
Fig-11. How to adjust
limit switch cam2
Clockwise
Fig-8. Arrangement of limit switch
Cam edge’s bolt