13
80-0042-00, Rev. 06.9
Setting the Extend Travel Limit
Switch (S4)
1. Remove the control module cover.
2. Extend the output shaft to the desired travel
limit. For Options 3 & 5, skip to step 3. For
Option 7: De-energize the motor by turning
toggle switch S1 (see Fig. 3) to stop (center
position). Turn the Handwheel until the
position feedback signal (measured across
terminals 14 (+) & 13 (–)) increases by .005 ±
.001 mA (1.25 mV ± .25). The .005 mA is the
over-travel range. NOTE: If direction of travel
is set for retract on increasing demand, then
turn the Handwheel until the output signal
decreases by .005 ± .001 mA (1.25 ± .25 mV).
3. Disconnect the power from the drive.
4.
a. For actuators with Option 3 or 5, connect
the continuity meter across terminals 2
and 10. Rotate the cam (see Fig. 2 at
right) until the meter shows an increase
in resistance from approx. 100 ohms to
more than 1 M ohms (switch contacts
open, switch clicks).
b. For actuators with Option 7, remove the
cable tie holding the switch wires, remove
the two wires from the extend limit switch
(top switch), and attach the meter across
these contacts. See Fig. 3 at right.
Rotate the cam (see Fig. 2 at right) until
the meter shows no continuity (switch
contacts open, switch clicks).
5. Disconnect the meter and reconnect switch
wires and actuator power.
6. Retract the output shaft and note the direction
that the Retract limit switch cam rotates. The
correct cam lobe motion is away from the
switch lever and the switch lever should be on
the lower part of the cam. If this is not correct,
return to step 2 and reset the cam to the proper
orientation.
7. Retract the output shaft to the desired travel
limit. If the desired stopping point is reached,
the switch is properly set.
8. For Option 7, redress the switch wires and secure
to the control board standoff with a cable tie.
9. Replace the control module cover.
Adjust cam by inserting a small screwdriver
(or similarly sized tool) in one of the
adjustment slots and slowly rotating the cam.
Figure 2
Figure 3
Cam Adjustment
Cam Adjustment Slots
(any one may be used)
Meter connections for S4 switch
(Push on connectors shown
without wires for clarity)
