Rockwell Automation Publication 750-PM001N-EN-P - February 2017 465
Application Notes Appendix C
Fine-Tuning
P1195 [Pump Off Level], P1196 [Pump Off Speed], and P1197 [Pump Off
Time] all contribute to the productivity of the well and must be adjusted. For
more information read the parameter descriptions in Chapter 3
.
Occasionally the position starts to drift relative to the torque signature. If drift
occurs, set P1188 [Pump Off Setup] Bit 1 “Pos Offset” to 1. See Figure 81
for an
example of what this drift would look like.
Figure 81 - Correcting Drift
Notice how the position has drifted relative to the torque. This drift causes the
incorrect part of the waveform to be averaged as the down stroke torque and
results in a false pump off condition. The drift can be corrected by setting the
position offset bits properly.
Sleep Mode
If P1189 [Pump Off Action] is set to 1 “Always Stop,” 2 “Stop After 1,” or 3 “Stop
After 2,” the Sleep Wake function must be configured. Set the following
parameters.
Parameter Setting
Start Features
P350 [Sleep Wake Mode] 1 “Direct” (Enabled)
P351 [SleepWake RefSel] 1207 (Entered through the Numeric Edit tab.)
P355 [Wake Time] Desired restart time (64800 seconds maximum).
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