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GE Zenith Controls 7
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ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A)
Entelli-Switch 250 Controller (cont’d)
Figure 9
LCD & Keypad
These options are accessible through the LCD and
keypad (see figure below). To become familiar with the
options loaded into a particular unit, scrolling through
the SET and CFG menu will show the descriptions of
the options (see pages 16-17). These menus are the very
same menus that are used to access the setting and/or
configuration of these options. The SET (setting) menu
is primarily used to show or change, time and voltage
settings. The CFG menu is primarily used to turn an
option on or off. When scrolling through these menus,
no changes can be made without entry of the access code.
The factory set six-digit access code is located on a white
label on the back of the unit (see figure 11 pgs. 16-18).
The Entelli-Switch 250 has many logic options. Each
controller is downloaded with options at the time of
manufacture. The collection of options that any one
controller has is specified at the time of order placement.
The following pages include all the options that can
reside in the controller. Not all units include all options.
Entelli-Switch 250
S1 OK
01: 50
FRI 31 MAY 2003
Source 2 (Red)
indicates Source 2
is acceptable for use
Source 1 LED (Green)
indicates Source 1 is
acceptable for use
Exercise Event
"Impending"
SET Menu
MORE CFG TEST SET
#1 or the word
on the LCD above the key.
The word above the key
changes depending on which
screen is being displayed.
#2 or the word
on the LCD above the key.
The word above the key
changes depending on which
screen is being displayed.
#3 or the word
on the LCD above the key.
The word above the key
changes depending on which
screen is being displayed.
#4 or the word
on the LCD above the key.
The word above the key
changes depending on which
screen is being displayed.
Current Time,
Day and
Date of Display
Source 1 Position LED (Green)
indicates Power Panel (ATS)
is closed to Source 1 position
Source 2 Position
LED (Red) indicates
Power Panel (ATS)
is closed to
Source 2 position
Menus (MORE, CFG, TEST)
Keypad
* E *
LCD Screen