Hit Products Pro-Two - Manual (Page 24)

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22 PRO 2
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Two Wire Operation
Controller Operation Controller Operation
When the controller is activated by either “Auto” programming or a “Manual” Input, the
power and an encoded signal is supplied to the Line Out Terminals.
Decoder Operations Decoder Operations
The Decoder operates as an electronically controlled switch. When the decoder recog-
nizes the encoded signal that matches its programmed data, it then allows or “switches”
power to the solenoid on the valve.
Line Short/Valve Short Codes
The controller, through its current monitoring ability, can display two fault conditions: One
being “Short Line” the second being “Valve Short.” These faults are triggered when cur-
rent draw has exceeded a pre-set level.
Note: No Output is sent to the field during the following conditions:
• If excessive current draw is sensed at a programs initial start a “Line Short”
will be displayed.
• If excessive current draw is sensed during a specific valve run time
then “Short Valve” with a valve number will be displayed. then “Short Valve” with a valve number will be displayed.
“Short line” will retry after 20 minutes. Turning the dial out of “Run” and back will clear
the display. The controller will then try to continue any scheduled program. If the short
has not been corrected the controller will go back into “Line Short.”
“Short Valve” will stay displayed during that specific valve’s run time. The controller will
monitor the program status and standard operation will resume when the next valve is
activated. If the problem has not been corrected by the time the controller is scheduled to
Run again the “Short Valve” will repeat for that specific valve until the short is repaired.
No irrigation will occur for that specific valve’s run time but all valves that do not have a
No irrigation will occur for that specific valve’s run time but all valves that do not have a
“short” condition will continue to irrigate as programmed.
Note: These high current draw codes are designed to protect the controller and
transformer. In extremely long wire runs the current level may not be reached to
activate “Line Short” or “Short Valve ” due to line loss.
or or