SDS Series
27
Programming
The controller uses program 7 and 8 for frost control. In the [TWO-WIRE] menu, two frost
sensors (1 and 2) are available to assign to DataNodes. Sensor 1 will activate program 7
and sensor 2 will activate program 8. When the sensors are activated, all current irrigation
activity will be stopped and a loop cycle will commence on either or both programs until the
sensor deactivates.
When the FrostWatch function is enabled, the two-wire cable will switch on every 8 minutes
for a brief period to check the frost sensor status. The FrostWatch monitoring time-window
is selectable. Depending on the frost risk, the FrostWatch function can be enabled or disa-
bled at any time via the controller keypad.
FROST PROGRAM DESCRIPTION:
Scroll to the TW Data
Nodes
From the current Time
and Date display scroll
TWO WIRE
< Press Enter >
Assign DataNodes
< Press Enter >
Use numeric keys
to enter number
Enter DN No.
00 (DN N0. 1—12)
We will assume (1) was selected
program 7 is now a frost program
< Select Input >
Nil
Scroll to Frost
sensor (1) or (2)
From the current Time
and Date display scroll
Program Entry
< Press Enter >
Select
7 or 8
<P# WaterStn 01
00 : 00 : 00 100%
Use numeric keys to
enter run time h/m/
P# Station Delay
00 : 00 Ms
Note. See page 40,41 for configuring & downloading settings to DataNodes™
ASSIGN FROST SENSORS (1) & (2) TO DATANODE:
FROST PROGRAM:
The Frost program does not
require active days to be set
P1 Day Options
NONE
< P# Mode >
Normal
P# Master Pump
Default
Select Normal or
Loop then Enter
P# Water Days
SMTWTFS SMTWTFS
< P1 Start Time 1 >
NONE
Leave the start time set to
NONE for Frost Programs
P# Total Water
00:00:00
Start Time Overlap
NONE
NONE
Start Time Overlap
Current Water %
100%
Return to Date
Time display
LOOP PROGRAMS continued
Current Water %
100%
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