EAAM057608EN
GC250 Technical Manual 79
The first line under the superior status bar, allows to identify the current menu (Ref. 2) through
the identification number of the menu and the matching text. A pair of numbers is displayed
on the right of this line, 1/ 02 in the example in fig. 1. The first indicates which entry of the
menu is selected or which page is displayed, the second indicates how many entries or pages
can be displayed in the present menu/sub menu.
8.2.1
Parameters selection
The name of the current menu (in the example the menu “1-SYSTEM”) is always shown in the
first line, followed by the numeric Id of the selected item and the number of menu items. The
following lines are used to display single parameters. In detail:
Fourth and fifth rows show the univocal parameter code (four decimal digits) followed
by the description in the current language.
The sixth line shows the variable value, between brackets, aligned to the right side
“< >”.
For some parameters, on the eighth line, a value is shown, which is in some way
related to the actual parameter value. For example, in the case of the rated generator
power, the rated plant current is shown, derived from the rated generator voltage (P.
0102) and from the parameter itself (rated power, P.0106). Sometimes, this additional
measure can be displayed for showing its absolute value, when the parameter is a
percentage of other values.
Use the ▼ and ▲ buttons to cyclically scroll through the menu to the lower and upper index
items (i.e. pressing the ▲ allows to directly cycle from the first item to the last one and vice
versa). Press the
AUTO
button to enable the parameter modification procedure (see following
paragraph). Press the
STOP
button to leave the menu (back to the previous menu).
8.2.2
Modify a parameter
You may only modify parameters displayed between square brackets ([ ]). A parameter
between
(major/minor) symbols “<>” cannot be modified. In this case it could be necessary to
set an appropriate password. or stop the genset.
In case modifying the displayed parameter is allowed, press the
AUTO
button; the square
brackets ([ ]) enclosing the value will blink to signal that the modification is in progress. To
confirm the new value, press again the
AUTO
button; to abort and return to the original value,
press
STOP
.
button;
Parameter types are the following:
Numerics
:
the value can be modified by pressing the ▲▼ buttons, in order to
increase or decrease one unit (if you press the above buttons plus
AUTO
, the figure
will be increased or decreased by ten units at a time). The change is cyclical:
increasing over the maximum value when will lead to the minimum one and vice versa.
Numerics with a selection among a predefined list
(e.g. The number of phases
of the generator): it is valid what said for the numeric parameters, considering that
digits ▲▼ allow to pass to the following/previous value in the predefined list (with digit
AUTO
you pass to the following/preceding value by ten positions).
Numerics selected in a number-string couples list
(e.g. the type of pressure
sensor): same as the previous point.
Time
: same as numerical parameters, with one exception: the controller manages the
incremen
t/decrement maintaining valid values (example: increasing from “00.59”, the
value goes to “01.00” and not to “00.60”).
Strings
(e.g. Plant name): in this case the display shows (in reverse) the currently
selected character in the string. Buttons ▲▼ act on the selected character (passing
to the following/previous of the ASCII chart or to the one that follows/precedes it by
ten positions, if also pressed
AUTO
), while buttons
STOP
and
START
allow to select
the character to be modified.
You can set the ASCII characters from 32 (Space) to
