Troubleshooting
2/03 10260A Series Actuators – Installation, Operations, and Maintenance 75
9.2.6 Actuator CW/CCW Switch does not operate correctly.
Table 9-7 explains how to troubleshoot the actuator CW/CCW Switch.
Table 9-7 Troubleshooting the CW/CCW Switch
Step What to Do How To Do it or Where to Find the Instructions
1
Check that the CW/CCW Switch and
the jumper on the NCS Output Board
are correct.
Verify that when the CW/CCW Switch is toward
the CCW position that jumper W10 on the NCS
Output Board is between pins 1 and 2. See Figure
4-8.
2
Continue Step 1. Verify that when the CW/CCW Switch is toward
the CW position that jumper W10 on the NCS
Output Board is between pins 2 and 3. See Figure
4-8.
3
Check terminal wiring. Using the wiring label located on the cover of the
actuator verify that the wiring to the units is
correct.
4
Check Non-contact Sensor. Verify that the NCS sensor is positioned correctly.
Position actuator to 0 % SPAN for CCW drive
(100 % SPAN for CW drive) and make sure NCS
spoilers are in zero position. (See Figure 4-4.)
Using a DVM, measure voltage between pins on
W11. Voltage should be between 0.01 V and
0.02 V in ZERO position and should increment as
actuator goes CCW.
See Section 4 to recalibrate.
5
Replace CW/CCW Switch. Refer to the replacement procedure in Section 8 –
Replacement/Recommended Spare Parts. Or if
an external controller is being used refer to it’s
Operators Manual.
6
Replace NCS Output Board. Refer to the replacement procedure in Section 8 –
Replacement/Recommended Spare Parts. Or if
an external controller is being used refer to it’s
Operators Manual.
To Next Page
Loading...
