User Manual

6
FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTION
In this chapter the main functions of the Fertigation Controller are pre-
sented. For a better understanding see the typical installation schemes
utilized for irrigation and fertilization presented in the Appendixes, Instal-
lation Block Diagram.
IRRIGAIRRIGA
IRRIGAIRRIGA
IRRIGA
TION CONTROLTION CONTROL
TION CONTROLTION CONTROL
TION CONTROL
The Fertigation Controller can control up to 24 sectors (one valve per
sector) for each of the ten irrigation programs:
24 valves (sectors) can be selected specifying the sector’s number and the
desired value of irrigation time or volume for a specified irrigation pro-
gram using Panel
S43 S43
S43 S43
S43 (SET SECTORS). The panel displays the number of
set sectors for the respective irrigation program.
Panel
C13 C13
C13 C13
C13 (SECTOR STATE) displays the current status (set value plus
irrigation extension and “Done” time or volume value) for the selected
irrigation program and sector.
Irrigation can be controlled by time or volume – irrigation control mode
can be switched between time and volume using panel
S55 S55
S55 S55
S55 (IRRIG CTRL
MODE).
Each irrigation program can be started by:
•
TIME:TIME:
TIME:TIME:
TIME: 1 to 6 different timetables (values) per program can be set
using panel
S33 S33
S33 S33
S33 (SET START TIME). “Start cond” must be the selected
option on panel
S32 S32
S32 S32
S32 (START CONDITION).
•
EXTERNAL TEXTERNAL T
EXTERNAL TEXTERNAL T
EXTERNAL T
ANK LEVELANK LEVEL
ANK LEVELANK LEVEL
ANK LEVEL: Each irrigation program can be as-
signed the external tank (level indication) input which can start the speci-
fied irrigation program – this option is set using panel
S32 S32
S32 S32
S32 (START CON-
DITION).
•
MANUMANU
MANUMANU
MANU
AL AAL A
AL AAL A
AL A
CTIVCTIV
CTIVCTIV
CTIV
AA
AA
A
TIONTION
TIONTION
TION
: :
: :
: A program can be started using panel
S47 S47
S47 S47
S47 (PROG MAN START). A program can be stopped using panel
S48S48
S48S48
S48
(PROG MAN STOP).
Each irrigation program can be repeated a specified number of repeti-
tions. The number of repetitions as well as pause time between two repeti-
tions can be specified using panel
S34 S34
S34 S34
S34 (PROGRAM REPEATS).
Each irrigation program can be given a priority in relation to others (6
priority levels). Priorities and maximum open sectors per group can be
specified for each program and can be set using panel
S31 S31
S31 S31
S31 (SET PRIOR-
ITY).