Johnson Systems DE90-3000 Series Retrofit Control System - Manual (Page 18)

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Programming
Switches
LCD Display
Infrared LED
System Status LED Indicators
User Interface
All DE90-3000 Series retrofit 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 into 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 37
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 22 to 37.