Software Release: [App: 02.09.10039.00; Config: 2.9.20024; Built in PowerVision Configuration Studio Version:
2.9.23042; BTL: 02.09.10015.00]
Section 40
44
00-02-0996
2019-06-13
Pressure Transducer
(Pump All Purpose, Center Pivot/Linear Irrigation, Air Compressor, Hose Reel
Irrigation) read
Pressure Type
in detail below under Pressure Transducer menu for understanding
of setup.
Level Transducer
(Pump All Purpose) read
Level Type
in detail below under Level Transducer menu
for understanding of setup.
Flow Transducer
(Pump All Purpose, Center Pivot/Linear Irrigation) read
Flow Type
in detail below
under Flow Transducer menu for understanding of setup.
Local Throttle Input
for use when an analog input is selected for 0-5V throttle input. (Pump All
Purpose, Center Pivot/Linear Irrigation, Air Compressor, Hose Reel Irrigation)
Running Loaded Inc/Dec
(Pump All Purpose) allows the controller to ramp the engine speed up
and down using the Inc/Dec buttons on the keypad while using the controller for auto start.
Auto Throttle Type
–
(Medium Security):
Factory set to NON PID Auto Throttle.
NON PID Auto Throttle:
this type does not use the P I D adjustments found in the Transducer setups
within the Application menu.
PID Auto Throttle:
this throttle type uses the PID adjustments found in the Transducer setups
within the Application menu. This setting should only be used by a technician who understands in
detail the method of tuning the proportional-integral-derivative control loop commonly used in PLC
programming language.
NOTE:
When selecting PID Auto Throttle as the auto throttle type the Ramp Inc Rate
and Ramp Dec Rate in the Throttle menu should be set to 0 RPM per Second so the
PID does not combat the ramp rates set in the controller. This will require the user to
manually adjust the throttle rate in manual mode.
Linear Auto Throttle:
this type uses the Pressure, Level, or Flow start and stop set points as well as
the minimum and maximum RPM set points to linearly throttle the engine from start to stop
depending on Pressure, Level, or Flow. The throttle should increase or decrease depending on the
setting in the transducer type selected. The linear tie to the start/stop should be used when desiring
to decrease throttle as approaching the stop setting. See the figure below as an example.
Example, Linear Auto Throttle:
This example shows level with the transducer type set to Empty
with auto level start at 7ft and auto level stop at 4ft. This example also shows a maximum RPM of
1800 and a minimum RPM of 1200. The pump starts and ramps to 100% maximum throttle then
slows linearly as the level decreases until set stop level is reached with a 0% minimum throttle.