Allen-Bradley PowerFlex 20-750-DCBB2-F6 Programming Manual

Rockwell Automation Publication 750-PM001N-EN-P - February 2017 183
Drive Port 0 Parameters Chapter 3
APPLICATIONS
Pump Off
1191 Pump Off Status
Pump Off Status
RO 16-bit
Integer
Displays the status of the pump off control.
Bit 0 “Pump OffEnbl” – Pump off control is enabled.
Bit 1 “Pump Slowed” – A pump off condition was detected and the drive is running at a reduced speed.
Bit 2 “Pump Stopped” – A pump off condition was detected and the drive stopped (sleeping).
Bit 3 “Cycle Used” – The cycle torque is used for pump off detection.
Bit 4 “TopOf Stroke” – The internal position is between 0 and 500. Top of stroke is 0.
Bit 5 “PumpOff Alrm” – A pump off condition was detected, but has not yet triggered P1189 [Pump Off Action]. This is a warning of a pending pump off condition.
Bit 6 “Pump Stable” – The pump is running at a stable speed and not calculating the baseline torque.
1192 Pump Cycle Store
Pump Cycle Store
Stores the torque waveform over the course of a pump cycle. Used to determine the
downstoke when in “Automatic” or “Position” mode.
With the drive running at the desired speed, set this parameter to 1 “Enable” and press
Enter. Over the next few cycles, the waveform will be stored and this parameter will
automatically return to 0 “Disable.”
If this parameter does not return to 0 “Disable” after five pump cycles, waveform
variations may be excessive. Use of a fixed setpoint may be required. See the PowerFlex
750-Series AC Drives Reference Manual, publication 750-RM002
, for more information
on setting up the pump off feature.
Default:
Options:
0 = “Disable”
0 = “Disable”
1 = “Enable”
RW 32-bit
Integer
1193 Set Top ofStroke
Set Top of Stroke
Captures the position at the top of the pump stroke cycle.
With the drive running at the desired speed, set this parameter to 1 “Enable” and press
Enter when the rod is at its highest position. The top of pump stroke position will be
stored and this parameter will automatically return to 0 “Disable.”
Default:
Options:
0 = “Disable”
0 = “Disable”
1 = “Enable”
RW 32-bit
Integer
1194 Torque Setpoint
Torque Set Point
Sets the torque level for pump off when P1190 [Pump Off Control] is set to 2 “Fixed
Setpt.”
Units:
Default:
Min/Max:
%
0.00
0.00 / 100.00
RW Real
1195 Pump Off Level
Pump Off Level
Sets the percent change in torque from the baseline or setpoint that will indicate the
well is in the pump off condition.
When the pump is started it creates a baseline torque level, assuming the well is full. For
example, if the baseline torque is 50% and the [Pump Off Level] is set to 10%, the drive
will go into pump off when the torque drops to 45%.
Units:
Default:
Min/Max:
%
5.00
0.00 / 100.00
RW Real
File Group
No. Display Name
Full Name
Description
Values
Read-Write Data Type
Options
Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Pump Stable PumpOff Alrm TopOf Stroke Cycle Used Pump Stopped Pump Slowed Pump OffEnbl
Default0000000000000000
Bit 1514131211109876543210
0 = Condition False
1 = Condition True

Allen-Bradley PowerFlex 20-750-DCBB2-F6 Specifications

General

Brand	Allen-Bradley
Model	PowerFlex 20-750-DCBB2-F6
Category	Controller
Language	English