29
ENG
pRack PR300T +0300018EN rel. 1.5 - 02.05.2017
5. USER
INTERFACE
5.1 Graphic
terminal
The pRack PR300T user interface is represented by the pGDE terminal,
panel or built-in versions. The functions associated with the 6 buttons on
the pGDE terminal are the same on all the screens and are described in
the table below.
Functions of the 6 buttons
Button
Function associated
(ALARM)
displays the list of active alarms and accesses the alarm
log
used to enter the main menu tree
returns to the higher level screen
(UP)
scrolls a list upwards or increases the value highlighted
by the cursor
(DOWN)
scrolls a list downwards or decreases the value
highlighted by the cursor
(ENTER)
enters the selected submenu or confi rms the set value.
Tab. 5.a
The LEDs associated with the buttons have the following meanings.
Meaning of LEDs
LED
Button
Meaning
Red
Flashing:
active alarms present and not acknowledged
Steady:
alarms present and acknowledged
Yellow
pRack PR300T on
Green
pRack PR300T powered
Tab. 5.b
5.2 Description of the display
There are three fundamental types of screens shown to the user:
•
Main screen
•
Menu screen
•
Screen for displaying/setting the parameters
Main screen
The main screen is the screen that the software on board pRack PR300T
automatically returns to 5 minutes after the last button was pressed.
An example of the main screen is shown in the fi gure, highlighting the
fi elds and icons used:
pRack 14:30 20/01/10
Suction:
L1: 26.16barg
L2: 12.06barg
Gas Cooler: 64.44barg
Unit OFF by
keyboard
1
3
4
5
2
Fig. 5.a
1 Time and date
2 Main values.
3 Unit status (unit off ) or compressor and fan status (unit on)
4 Active alarm Signal and manual operation
5 Access further information screens (menu branch A.a) by pressing button
.
The information relating to the main values (Fig. 5.a) shown on the main
screen when fi rst starting vary according to the system confi guration
(one line, two lines, two lines with shared condenser) and the type of
control value (pressure, temperature).
Note
: The other information shown in menu branch A.a. varies
according to the system confi guration. For two line systems,
pressing
from the main screen accesses a diff erent screen based on
the starting point (line 1, line 2).
Starting in version 3.3.0, the main screen can be modifi ed, both in terms
of the probe displayed and the value used, from the menu at: F.SETTINGS
Æ
b.Language
Æ
Fb04
Main mask config Fb04
Probes configuration
CONFIGURE
Info configuration:
DON’T CONFIGURE
After having set the “probe confi
gurations” (screen Fb04) under
“CONFIGURE” and having pressed “ENTER” button, screen Fb05 can be
accessed:
Main mask config Fb05
L1-Suction: PRESS.
L2-Suction: PRESS.
[Empty] PRESS.
GC out temp.: TEMPER.
Gas cool.: PRESS.
Select prb info & UoM
Confirm conf -> EXIT
Here, for example, the receiver pressure can be entered (rather than the
discharge or intercooler temperature), the order of the probes shown can
be reversed, and the saturated values of the probe readings displayed.
In the same way, the positon of the compressor or fan status information in
the unit status display (3, Fig.5.a) can be changed, accessing “CONFIGURE”
for the “Info Confi guration” fi eld on screen Fb04:
Main mask config Fb04
Probes configuration
DON’T CONFIGURE
Info configuration:
CONFIGURE
Once again, pressing “ENTER” accesses screens Fb09 and Fb10:
Main mask config Fb09
Double line config.
I1% value: L1 - Compr.
I2% value: L2 - Compr.
I1% I3%
I2% I4%
MAN
Main mask config Fb10
Double line config.
I3% value: L1 - FANS
I4% value: HPV
I1% I3%
I2% I4%
MAN
In this way, for example, the backpressure or fl ash gas valve opening
percentage can be entered
Page 78 of 172
Copyright HPL March 2021
P4114S Rev 03
Содержание Hubbard GCU2040PXB1
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