Non-Contact Sensor; Figure 4-4 Location Of Ncs Assembly - Honeywell HercuLine 10260A Installation, Operation And Maintenance Manual

10260A Series Actuators Installation, Operations, and Maintenance Manual

4.6 Non-Contact Sensor

WARNING
While the unit is powered, a potentially lethal shock hazard exists inside the case.
ATTENTION
The 10260A Series Actuator comes with the Non-Contact Position Sensor (NCS) already adjusted from the
factory to 90 degree rotation.
If it becomes necessary to do an adjustment in the field, use the procedure given below.
1. Loosen the allen screw in the hub of the NCS spoiler just enough to be able to rotate the spoiler. (See
Figure 4-4.)
2. Drive the actuator to the zero position (this refers to the position on the actuator scale for CCW
rotation). This should be done manually with the hand wheel or manually with the auto/man electric
switch. Next, rotate the NCS spoiler to its 0º position (it is shown in Figure 4-4 at a 45 degree angle or
10:00 o'clock zero position for CCW operating units). For CW operating units, the actuator is
positioned at its 100 % position and the NCS spoiler is again at a 45 degree angle or 10:00 o'clock
position. Tighten NCS spoiler set screw with allen wrench, holding spoilers in position. Spoilers need
to be held in position both rotationally and longitudinally along the drive shaft extension (the gaps
between each of the spoilers and the sensor circuit board should be approximately equal and any
plastic or paper insulating material may be used to aid in this longitudinal positioning). Make sure that
neither spoiler is touching the sensor electronics board when the adjustment is complete.
3. Connect the lead wires of a precision digital voltmeter to connector W11 pins on the 4-20 mA output
card on the actuator. (The output board is positioned over the control shaft and the W11 connector is
on the underside of the board just to the right of the center mounting screw). Connect the positive lead
(+) to the W11 pin #2 and the negative lead (–) to pin #1.
4. Read the voltage. Voltage should be between 0.01 V and 0.02 V if the spoiler is positioned correctly.
5. If voltage is not correct, re-position the spoiler and take another voltage reading.
6. Once the voltage is within the correct range, the spoiler is in the 0° position.
7. Tighten the spoiler set screw with allen wrench.
Output Board
Non-contact Sensor
Sensing PWA
34 10260A Series Actuators – Installation, Operations, and Maintenance
W11
PIN #1
-
Allen screw

Figure 4-4 Location of NCS Assembly

W11
PIN #2
W11
+
Non-contact sensor spoiler
Shown in zero position for
counterclockwise operation of
the drive.
(Clockwise rotation of spoiler.)
Actuator shaft extension
2/03