Rockwell-automation 21G PowerFlex 750-Series AC Drives Programming Man Manual de usuario descargar pdf (Pagina 467)

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Rockwell Automation Publication 750-PM001J-EN-P - October 2014 467

Application Notes Appendix B

Store Pump Cycle Torque

1. Verif y the well is fu ll.

2. Enter a command speed.

3. Start the Pump Jack from the HIM.

4. Set P1192 [Pump Cycle Store] to option 1 “Enable.”

If the Pump Off feature detects a pump jack torque signature waveform,

the waveform is stored and the parameter resets to 0 “Disabled.”

If this parameter does not reset to 0 “Disabled,” set P1187 [Pump Off

Config] to option 2 “Cycle.” In this mode the entire cycle torque is used as

the down stroke torque was used in the original pump off detection.

Setting top of stroke is not necessary in this mode.

Initialize Pump Stroke Position

1. Set P1193 [Set Top ofStroke] to option 1 “Enable.”

Use a Human Interface Module (HIM) to avoid any communication

delays.

2. Press enter when you visually see the Horsehead at the top position. This

action sets the stroke position to the stored pump cycle torque.

3. Stop the drive.

4. Set up DriveObserver with the following parameters.

• P5 [Torque Cur Fdbk]

• P972 [Testpoint Lval]

• P1198 [Pct Cycle Torque]

• P1200 [Pct Drop Torque]

• P1201 [Stroke Pos Count]

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Rockwell-automation 21G PowerFlex 750-Series AC Drives Programming Man Manual de usuario Pagina 467

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