7
8) Move actuator to the valve OPEN position using handwheel
operation.
9) Using a flat screwdriver, depress the Drive Clutch Shaft
and rotate to “SET” position as shown on the switch
mechanism faceplate.
10) The OLS Adjustment Screw must now be rotated to make
the open limit switch inside the switch mechanism. The OLS
Indicator Window will show one of four possible symbols.
Please refer to Figure 1 below for direction input.
11) Depending on where the mechanism is in the cycle, it is
possible that the switch will be approached from the wrong
direction, in which case it is necessary to move through
the limit and approach it from the correct direction. This
is done to avoid the need to wind through the whole
mechanism to reach the limit position. The correct direction
to approach the limit is shown by the arrow next to the
Adjustment Screw input.
12) Perform two checks to confirm the OPEN limit position
switch has been made correctly.
a. The feel of the Adjustment Screw will noticeably
change providing more mechanical resistance at the
switching point of the contact.
b. Confirm the switch has been made by checking the
OPEN limit indicator is illuminated on the Atronik.
13) Using a flat screwdriver, depress the Drive Clutch Shaft
and rotate to “RUN” position as shown on the switch
mechanism faceplate.
14) Rotate the OLS and CLS Adjustment Screws a small amount
in both directions to re-engage the mechanism drive. A click
will be heard as the drive drops back into engagement and
the adjustment screws will no longer move in either direction.
Step 14 must be done or the limit will be lost when
the actuator is moved.
CLS
OLS
Rotate the OLS/CLS Adjustment Shaft Clockwise.
Rotate the OLS/CLS Adjustment Shaft Anti-Clockwise.
CLS
OLS
CLS
OLS
3. Commissioning
CLS
OLS
CLS
OLS
Rotate the OLS/CLS Adjustment Shaft In the direction
shown next to the Shaft input.
The limit switching point is near or made.
Figure 1.
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