Section 40 00-02-0994
2016-06-28 - 37 -
Throttle Increase / Throttle Decrease The increase and decrease outputs are used for the pulse
inc/dec throttling type.
Digital Input (1-6)
A digital input can be assigned to turn on a digital output.
Analog (1-8) Digital
An analog input configured to be a digital input can be assigned to turn on a digital
output.
Application Configuration
Application
Pump All Purpose: The Pump All Purpose application houses most all auto start functions and auto
throttling methods of the controller. This application is the most versatile application thus requiring
so many combinations of settings for the operator to choose. Factory Default
Center Pivot / Linear Irrigation: The Center Pivot / Linear Irrigation application houses the auto start
functions and auto throttle methods meant to be used on center pivot and linear movement
irrigation applications.
Air Compressor: The Air Compressor application houses the auto start functions and auto throttle
methods meant to be used on all engine-driven air compressor applications. The MPC-20 allows for
the compressor to start/stop and maintain a desired pressure during operation.
Hose Reel Irrigation: The Hose Reel Irrigation application houses the auto start functions and auto
throttle methods meant to be used on hose reel irrigation systems. The MPC-20 allows for the hose
reel pump to auto start with several methods, including the Local Key Start which may be the most
used in this application. The key feature of this application is the auto throttling method. This feature
allows the controller to manage the pump’s throttle in order to maintain a pressure in the hose
during irrigation.
Frost Protection: The Frost Protection application houses the auto start functions and auto throttle methods
meant to be used on frost protection systems. This application allows for wind machine, sprinkler or
other forms of frost protection using single contact or a temperature transducer.
Auto Start / Stop Function
Single Contact (Center Pivot/Linear Irrigation, Air Compressor, Hose Reel Irrigation, Frost Protection)
Local Start Key (Center Pivot/Linear Irrigation, Hose Reel Irrigation)
Two Contact Maintained (Center Pivot/Linear Irrigation, Air Compressor, Hose Reel Irrigation) Factory
Default
Two Contact Momentary (Center Pivot/Linear Irrigation, Air Compressor, Hose Reel Irrigation)
Pressure Transducer (Air Compressor, Hose Reel Irrigation)
Level Transducer (Pump All Purpose)
Flow Transducer (Pump All Purpose)
Temperature Transducer (Frost Protection)
Auto Throttle Method
Maximum RPM (Pump All Purpose, Center Pivot/Linear Irrigation, Air Compressor, Hose Reel Irrigation,
Frost Protection) Factory Default
Pressure Transducer (Pump All Purpose, Center Pivot/Linear Irrigation, Air Compressor, Hose Reel
Irrigation)
Level Transducer (Pump All Purpose)
Flow Transducer (Pump All Purpose, Center Pivot/Linear Irrigation)
Local Throttle Input - this is 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)
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