5.With the travel switch in the closed position, rotate the handwheel
Open Travel Switch and Travel Stop Adjustment
Manually operate the actuator handwheel Counterclockwise (CCW) until the valve is fully open. Follow the same procedure as outlined in the Closed Travel Switch and Travel Stop Adjustment section, except use the green cam (open) and the travel stop located on the left side (as seen when viewed from the travel stop side of the actuator).
Servo Commissioning
Ensure that the travel switches and travel stops are set properly before calibrating the servo. Use a controlled and known command signal source.
Setting the Input Control Signal
Set the input control signal for the input type used. See Table 1.
Setting the Potentiometer
1.Manually operate the actuator handwheel until the unit is in the fully closed position.
2.Rotate the black potentiometer drive gear adjustment knob to barely engage the potentiometer gear segment at the closed position.
3.Manually operate the actuator to the fully open position.
4.
Table 1: Input Control Signal Switch Settings
Setting the Servo
1.Wire the input signal to the incoming command signal terminals. Ensure that you maintain proper polarity when making wiring connections.
2.Connect the power supply and activate the actuator.
3.Check the Status
•If the red Status LED is flashing, refer to the Servo Troubleshooting section in the
•If the green Status LED is flashing, press and hold the CALIBRATE button until the green Status LED flashes rapidly (approximately
2 seconds), then release the CALIBRATE button. The servo drives the valve to the open and close travel limit switch settings. When the calibration is complete, the green Status LED resumes flashing at the normal rate.
•If the Status LED alternately flashes red, then flashes green, the calibration has failed. To resolve the problem, refer to the Servo Troubleshooting section in the
4.After calibration is complete, apply the desired minimum and maximum input signals, and observe the actuator operation through one full cycle for proper operation.
Repair Information
If the
Switch |
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| Input Signal |
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| 4 to 20 mA | DC 0 to 5 V |
| DC 0 to 10 V | DC 2 to 10 V |
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1 | OFF | ON |
| ON | ON |
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2 | OFF | OFF |
| ON | ON |
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3 | OFF | OFF |
| OFF | ON |
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Controls Group | Metasys® is a registered trademark of Johnson Controls, Inc. |
507 E. Michigan Street | All other marks herein are the marks of their respective owners. |
Milwaukee, WI 53202 | © 2007 Johnson Controls, Inc. |
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Published in U.S.A. | www.johnsoncontrols.com |