Installation & Operation Manual
ECON actuator Fig. 7917EX, type ELSA50 – 260
www.eriks.com
Rev. 0 – April 10
th
, 2019
14
For modulating unit, ensure to loosen the sector gear of potentiometer first before
adjusting the following settings.
4.4.1 Adjustment procedure for spring-return actuators in the fail-close position
upon loss of supply voltage.
Adjust FULLY-CLOSED (spring released) stop point. Follow the steps below:
a. Turn the power off and loosen the end stop protection cover using a 5mm hex key.
b. Loosen the hex locknut of the End Stop using a 17mm hex wrench. Hold the locknut and
turn the End Stop using a 10mm hex wrench to adjust the end position
c. Turn the buffer or End Stop in order to adjust the fully-closed stop point.
ELSA50 : One turn = 2.3 degrees
ELSA130 to ELSA260 : One turn = 1.4 degrees
d. Once completed, tighten the hex nut, replace the cover and tighten the bolts.
If the buffer or End Stop is adjusted, TC2 must be reset in accordance with
the buffer or the End Stop
e. Loosen the M3 cap bolt of the cam TC2 with a 2.5mm hex key.
f. Rotate the cam TC2 counter-clockwise until a light click is heard and then slowly rotate
the cam TC2 clockwise until a light click is heard.
g. Tighten the cap bolt of cam TC2.
Spring released 0°
Clockwise (CW)
Counter-clockwise (CCW)
Spring compressed 90°
Desired Position
Original Position
End stop
Hex Nut
End stop
Protection
Cover
O-ring