Honeywell HercuLine 10260A Installation, Operation And Maintenance Manual page 39

1. Remove the cover (terminal cover, see Figure 1-1).
2. Using a slotted screwdriver on the slots at the edge of the cams, or your finger, rotate the cams until the
switches are set (see Figure 4-1).
•
Rotate the actuator shaft, using the manual handwheel or the auto/manual switch, to the 0 %
position (this is the 0 % for CCW operation using the left-hand scale or 100 % for CW operation
using the right hand scale). If the actuator is installed on a damper or valve, also make sure that
this position is synchronized with the travel of the final control element.
•
Rotate the #1 limit switch operating cam to activate at this position. The switch roller arm should
go from being in an up, not depressed state, to a depressed state as the cam is rotated in the
direction of the shaft rotation going toward the limit position. This will cause the switch to go
from NC to NO and turn off the power to the motor when the switch activates. Switch activation
may be detected by the clicking sound or with a continuity tester connected to the terminals. Both
the NC and NO contact states are available to the customer at the terminals (see Figure 3-11).
•
Rotate the actuator shaft, using the manual handwheel or the auto/manual switch, to the 100 %
position (this is 100 % for CCW operation using the left-hand scale or 0 % for CW operation
using the right hand scale). If the actuator is installed on a damper or valve, also make sure that
this position is synchronized with the travel of the final control element.
•
Rotate the #2 limit switch operating cam to activate at this position. The switch roller arm should
go from being in an up, not depressed state, to a depressed state as the cam is rotated in the
direction of the shaft rotation going toward the limit position. This will cause the switch to go
from NC to NO and turn off the power to the motor when the switch activates. Both the NC and
NO contact states are available to the customer at the terminals (see Figure 3-11).
•
If optional auxiliary switches were ordered, these switches may also be set at this time. (See
Section 4.5 for details of setting auxiliary switches.)
3. No additional adjustments are required.
4. Double check limit switch actuation by first manually driving the actuator to each end of travel and
hearing the switch click or by detecting it with a continuity tester. Secondly, drive the actuator to both
ends of travel (using the auto/manual switch or by providing minimum and full input signal) and make
sure the switches activate and turn off the motor.
2/03 10260A Series Actuators – Installation, Operations, and Maintenance
Calibration Procedures
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