Reversal Of Direction (Non Contact Sensor); Reversal Of Direction (Film Potentiometer) - Honeywell HercuLine 10260A Installation, Operation And Maintenance Manual

10260A Series Actuators Installation, Operations, and Maintenance Manual

4.9 Reversal of Direction (Non contact sensor)

The CW/CCW Inverter Output Circuit is included on each of the versions of the NCS Output Card
(51404886-001, 002, and 003). It can be calibrated by monitoring any of the output signals or using the
scale on the actuator. For this procedure it is assumed that the pointer is set on the CW scale. (If the
pointer is not changed to the CW scale replace 0 % with 100 % in this write up and 100 % with 0 %). The
Actuator leaves the factory configured for CCW rotation. (Actuator should be calibrated for both CW and
CCW operation and should not require recalibration when reversing direction.)
To change to CW rotation:
1. Remove power from the actuator, and change the jumper on W10 (see Figure 4-8) from the pin 1 to 2
position to the 2 to 3 position. Also place the toggle switch on the terminal block plate to the CW side.
2. Connect a precision voltmeter, + and – leads, to the output terminals or read the output on the scale of
the actuator.
3. Apply the AC power to the actuator.
4. Set the input to the actuator to the 25 % point.
5. Read the voltage on the DVM or the scale position. The reading should be 25 % of the output span
± 0.75 % of span.
6. If the reading is incorrect, adjust R3 (see Figure 4-6) until the reading is within tolerance.
7. Set the input to the actuator to the 75 % point.
8. Read the voltage on the DVM or the actuator scale. The reading should be 75 % of the span, ± 0.75 %
of span.
9. If the reading is incorrect adjust R4 (see Figure 4-6) until the reading comes into line.
10. Repeat steps 4 through 9 until the readings are within tolerance.

4.10 Reversal of Direction (Film Potentiometer)

The actuator leaves the factory configured for counterclockwise rotation.
To change to clockwise rotation:
1. Remove power from the actuator, and interchange the black lead with the yellow lead at terminals 35
and 37. Place the toggle switch on the terminal block plate to the CW side.
2. Move the pointer from the Left-hand scale to the Right-hand scale.
3. Apply the AC power to the actuator.
4. Set the input to the actuator to the 25% point.
5. The scale position should be 25% of the output range +/-0.75% of span.
6. If the reading is incorrect, adjust R3 (see Figure 4-6) until reading is within tolerance.
7. Set the input to the actuator to the 75% point.
8. The scale position should be 75% of the output range +/-0.75% of span.
9. If the reading is incorrect, adjust R4 (see Figure 4-6) until reading is within tolerance.
10. Repeat steps 4 through 9 until the readings are within tolerance.
42 10260A Series Actuators – Installation, Operations, and Maintenance 2/03