Installation & Operation Manual
ECON actuator Fig. 7917EX, type ELSA50 – 260
www.eriks.com
Rev. 0 – April 10
th
, 2019
17
close stop point is not aligned with the valve or damper properly, then it must be
adjusted.
b.
Turn the power off and let the spring unit drive the actuator back to its fully-open
(spring released) position.
c.
If it is required to adjust, loosen the cap bolt of cam TC1 with a 2.5m hex key.
To increase the opening angle, turn the cam clockwise.
To decrease the opening angle, turn the cam counter-clockwise.
【
ELSA50
】
ELSA130 up to ELSA260
】
d.
After adjusting the cam, apply power to drive the actuator to the fully-closed position.
e.
Verify that it is in the correct fully-closed position.
If it is in correct position, turn the power supply off and lock the cap bolt of cam
TC1.
If it is not in the correct position, repeat step
C
until the correct position is reached.
f.
If auxiliary switches will be used for feedback, cams TC3 and TC4 need to be
calibrated.
Adjust cam TC3 so it trips just before cam TC1 does
Adjust cam TC4 so it trips just before cam TC2 does.
For modulating actuators, after completing the calibration, turn the actuator to the
fully-closed position and follow the procedure below:
a.
Loosen M5 set screw.
b.
Rotate the sector gear clockwise
to the position shown in the
figure below.
Ensure that the round gear and
sector gear are engaged
properly.
c.
Tighten M5 set screw.
增加角度
Decrease the
opening angle
Increase the opening
angle
Decrease the
opening angle
Increase the
opening
angle
Sector
Round
Shaft
M5 Set
End Position
of Sector Gear