Instruction Manual
D103785X012
Maintenance and Troubleshooting
June 2017
79
4. Loosely assemble the bias spring (key 78), screw (key 80), plain washer (key 163), and nut (key 81) to the feedback
arm (key 79), if not already installed.
5. Attach the feedback arm (key 79) to the travel sensor shaft.
6. Using a Field Communicator, perform the appropriate Travel Sensor Adjust procedure in the Calibration section.
Install the remote feedback unit on the actuator when travel sensor adjustment is complete.
Note
If a Field Communicator is not available, perform the Travel Sensor Adjustment with a Multimeter procedure below.
Travel Sensor Adjustment with a Multimeter (DVC6035)
1. Align the feedback arm (key 79) to the housing (key 1) by inserting the alignment pin (key 46) through the hole
marked “A” on the feedback arm. Fully engage the alignment pin into the tapped hole in the housing. Position the
feedback arm so that the outer surface is flush with the end of the travel sensor shaft.
2. Connect a multimeter set to a resistance range of 50,000 ohms. Measure the resistance between terminals 1 and 3
of 1680 to 2100 ohms.
4. Re‐range the multimeter to a resistance of 3000 ohms between terminals 2 and 3 of the remote feedback unit.
Refer to figure 6‐8 for terminal location.
5. Adjust the travel sensor shaft to obtain the calculated resistance determined in step 3,
$
100 ohms.
Note
In the next step, be sure the feedback arm outer surface remains flush with the end of the travel sensor shaft.
6. While observing the resistance, tighten the screw (key 80) to secure the feedback arm to the travel sensor shaft. Be
sure the resistance reading remains at the calculated resistance determined in step 3,
$
100 ohms. Paint the screw
to discourage tampering with the connection.
7. Disconnect the multimeter from the travel sensor connector.
8. Travel sensor adjustment is complete. Install the remote feedback unit on the actuator as described in the
Installation section.