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15. Use the INC button to rotate the actuator
towards its maximum position while watch-
ing the millivolt readout on the controller
screen. Discontinue pressing the INC button
when the millivolt reading in the “Current”
window is approximately 4800 millivolts. You
are nearing the mechanical stop position.
16. Pulse the INC button to carefully move the slide
valve until the millivolt readout “saturates”,
or stops increasing. This is around 4800 mil-
livolts
Record millivolt maximum reading.
17. Pulse the DEC button until the millivolts just
start to decrease. (This is the point where
the channel drops out of saturation). Ad-
just millivolt value to 300 millivolts below
recorded maximum millivolts in step #17.
18. Press the “Set Max” button.
19. Press the “Main” button to complete calibra-
tion and exit the “Slide Calibration” screen.
The controller will automatically energize
the actuator and drive it back to its mini-
mum position (below 5%) for pre-start-up.
20. Note: Now the “Current Cap” or the “Current
Vol” value will be displayed in the window on the
“Main” screen and the “Slide Calibration” screen.
21. Gently lower the plastic cover over the top
of the actuator to where it contacts the
base and O-ring seal. After making sure the
cover is seated properly, gently tighten the
four #10 screws.
Caution: The plastic cover
will crack if the screws are over tightened.
22. Enable the “Slide Non-Movement Alarm” by go-
ing to the “Setup” menu and choosing “Alarm
Enable” for the “Slide Non-Movement Option”.
23. This completes the calibration for this chan-
nel either capacity or volume. Repeat the
same procedure to the other channel.
Calibration Procedure of Optical Actuators
Содержание VSG & VSSG
Страница 1: ...1 VSG VSSG Single Screw Compressor Software Manual Compact Logix PLC ...
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Страница 21: ...21 Discharge Pressure Control There are three options for the Compressor Control Setpoints ...
Страница 22: ...22 Suction Pressure Control ...
Страница 23: ...23 Process Temperature Control ...
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Страница 67: ...67 Captured Data at Shutdown The Captured at Shutdown screen shows data captured prior to compressor shutdown ...
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