Johnson Systems EDI-120 Control Retrofit - Manual (Page 14)

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Programming
Switches
LCD Display
Infrared LED
System Status LED Indicators
User Interface
EDI-120 retrofit control systems are equipped with a
user interface. The user interface provides access to all
programming and configuration settings. System status is
easily visible on the LCD display and LED indicators. An
infrared LED allows for printout of all system configuration
settings when used with a hand held infrared printer (Johnson
System Inc., Part Number: JS-IP).
All of the programming is accomplished using four (4)
switches. Within a few minutes most users will find the menu
structure very intuitive and easy to navigate. All configuration
settings are automatically stored in the on-board EEPROM.
LCD Display
The LCD display is capable of displaying 2 lines of 8
Characters. A backlight automatically comes on when activity
is sensed on the switches. The LCD contrast can be easily
adjusted for optimum viewing. Refer to menu item “LCD VIEW”
on page 32 for further details.
Programming Switches
The MENU UP/DOWN ( ) switches are used for navigating
through the various system configuration menu items. They
also allow for programming of other specific parameters within
a selected menu. Pressing and holding either switch will
speed up the scroll rate, which can be helpful to speed up the
configuration time.
The EXECUTE ( ) switch is normally used to select/enter a
menu item, advance forward within a selected menu item, or
toggle between parameters within a selected menu item.
The ESCAPE ( ) switch is normally used to back up within
a selected menu item one step at a time or exit the menu
completely.
NOTE: The programming switches can be locked out to
prevent inadvertent configuration changes. To toggle
between “LOCKED!!” and “UNLOCKED” press and
hold down the EXECUTE and then ESCAPE switches
at the same time for 4-5 seconds.
The RESET switch has two purposes. First, it allows for
quick exit from a menu item after a programming change and
automatically puts the system into normal run mode. Second, it
provides a soft reboot for the systems microcontroller.
NOTE: A detailed procedure for programming all system
configuration menu items can be found on page 18 to 32.