STULZ CyberRow Chilled Water Series Installation, Operation & Maintenance Manual
(
Dec.
, 2013)
4-5
4.2.3 Display
Variables
The user interface display panel provides screens with three
(3) different forms of both the read only and the modifi able
variables:
Numbers
are displayed as positive (+) or negative (-)
integers.
Dual-State
can be toggled between two (2) values i.e.
On/Off, Yes/No.
Word Variables
have a unique text message for each
of the variable's possible choices.
4.2.4 Cursor Position in Screens
The following display screen is shown as an example
after accessing a new menu loop display screen using the
function keys. The name of the menu loop is the line in
the upper-most fi eld of the screen. A fl ashing window also
appears in the left of the uppermost fi eld indicating you're
in the top level of that menu loop.
CONTROL MENU
Alarm Set
CLOCK
Version
Flashing
Window
From this position the Up ( ) and Down
( )
arrow keys may
be used to access additional selections within the current
display menu.
Each screen supports a specifi c functional requirement.
Pressing the Enter (
) key allows you access to the
selected display screens to adjust any of the modifi able
fi elds. If a screen with modifi able values is accessed, you
may use the Enter key to insert a fl ashing cursor in the
modifi able fi elds within that screen.
Flashing
Cursor
SET CLOCK
Time:
00:00
Date:
00/00/0000
Day:
XXXXXXX
If the fl ashing cursor is located in a modifi able fi eld, the
value of the fi eld will be changed with the use of the Up (
) and Down
( ) arrow keys. When the Enter (
) key is
pressed the cursor moves to the next modifi able fi eld. After
entering the last modifi able fi eld within a screen, pressing
the Enter key removes the cursor and the fl ashing window
reappears in the left-hand corner of the upper-most fi eld
of the current screen. From here advancement to the next
adjacent menu loop screen will occur when the Up or Down
key is pressed. Successive use of the Enter key will advance
the cursor through the various modifi able fi elds of the
display screen eventually returning to the fi rst fi eld.
Values that are already correct may simply be skipped over
by using the Enter (
) key without modifi cation of the
variable. The current value, if not changed, will be retained
after pressing the Enter (
) key
.
Values for fi elds being
adjusted will automatically wrap when adjusted beyond the
high or low limit established for that fi eld.
Whenever the fl ashing cursor is located in a modifi able fi eld,
pressing the Escape
(
Esc
)
key one time returns the user to
the next menu up. Each successive use of the Escape key
returns you to the next menu level up until the Main screen
is reached.
4.2.5 Modifi able Variables
SET CLOCK
Time:
00:00
Date:
00/00/0000
Day:
XXXXXXX
Modifi able
Variable
For the purpose of this manual the examples of user
modifi able variables within display screens will be denoted
by
bold text
. (Please note the actual display may not use
bold text.) Pressing the Enter (
) key accepts the value
displayed and advances the cursor to the next modifi able
fi eld. The Up ( ) or Down
( ) key may be used to modify
the values of these fi elds.
If the modifi able fi eld is a positive (+) number, the positive
value is indicated by the absence of a (+) or (-) symbol.
The (-) negative symbol will be displayed to the left of the
fi rst digit for negative numbers.
4.2.6 Password Authorization Levels
Access to a menu loop may be requested from the main
menu. Modifi able control screens have variables that affect
system performance. Improper settings may result in erratic
operation and possible system failure or damage. Anyone
is allowed direct access to the
Info
and
Alarm log
display
menus with no security password.
Only authorized personnel who possess a thorough
understanding of the system operation should perform
modifi cations to secured menu settings (Control, Service
and Factory). These menus are confi gured with password
protection, thus requiring a higher level of authority to
access them. The screens must have accurate variables
entered otherwise erratic operation may occur.
