Carel pGD2/3 Mode D'emploi page 9

Description
pGD 2 and pGD 3 are electronic devices designed as the user interface for the pCO family controllers (contact CAREL to fi nd out
the most suitable controller that supports the PGD2/3 for the specifi c application).
2
pGD is a monochromatic (blue/white) LCD graphic terminal with 320x240 pixel resolution (code PGD2*******) and LED
backlighting.
pGD 3 is a 256-colour LCD graphic terminal with 320x240 pixel resolution (code PGD3*******) and CCFL backlighting.
Panel installation (code PGD*00*F0*)
These terminals have been designed for panel installation; the drilling template must measure 194.5x128 mm + 6 circular holes,
diameter 4 mm, as shown in Fig. 2 and 4.
For installation, proceed as follows:
• Connect the power and RS845 serial interface cables;
• Insert the terminal, without the front frame, into the opening in the panel, and using the 6 countersunk screws supplied in the
packaging, secure the device to the panel as shown in Fig. 2, then check the correct positioning of the front rubber gasket;
• Finally, install the click-on frame.
Important:
installation must be performed so that the operator may access the rear cover of the instrument only using a tool.
Turn off the device before handling it.
Wall-mounting (code PGD*00*W0*)
The wall-mounting of the terminal fi rst requires the rear of the case (Fig. 3) to be fastened to a standard 12/14 module switch
box (as per CEI23-48 – IEC60670).
Then proceed as follows:
• Fasten the rear of the case to the switch box, using the 4 countersunk screws present inside the FISCHER
• Connect the power and RS845 serial interface cables;
• Pre-fasten the front panel to the rear of the case: secure the entire assembly as illustrated in Fig. 3, using the 4 countersunk
screws included in the plastic bag inside the packaging;
• Finally, install the click-on frame.
Important:
Turn off the device before handling it.
Note:
to remove the front panel from the rear of the case, fi rst remove power and after having manually removed the click-on
frame and having undone the four fastening screws, use a screwdriver as a lever to release the top corners of the front panel.
Installation warnings
Avoid assembling the devices in environments with the following characteristics:
• relative humidity greater than the value specifi ed in the technical specifi cations;
• strong vibrations or knocks;
• exposure to continuous water sprays;
• exposure to corrosive or pollutant gases (e.g. sulphur or ammonia fumes, saline mist, smoke) so as to avoid corrosion and
oxidisation;
• strong magnetic and/or radio interference (therefore avoid installing the unit near transmitting antennae);
• exposure to direct sunlight or the elements in general;
• large and rapid fl uctuations in ambient temperature;
• environments where explosives or mixes of fl ammable gases are present;
• exposure to dust (formation of corrosive patina with possible oxidation and reduction of insulation).
• avoid touching or nearly touching the electronic components fi tted on the boards, so as to avoid electrostatic discharges
(extremely dangerous) from the operator to the components.
Further warnings
1. Using a different power supply from the one specifi ed may seriously damage the system;
2. Use cable ends suitable for the terminals. Loosen each screw and insert the cable ends, then tighten the screws. When
completed, lightly tug the cables to check that they are tight;
3. The touchscreen is a sensitive device. Exerting excessive pressure or using sharp objects may cause irreparable damage.
4. Use a dry soft cloth to clean the screen and never use water;
5. Operation at particularly low temperatures may cause a visible decrease in the response speed of the display. This is normal
and does not signify a malfunction;
6. To improve the visual performance of the application, use full colours and images that do not feature dithering (wirings).
Otherwise, especially at high temperatures, fl ickering (display fl ashing) may be visible.
9
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assembly kit;
+050001041 rel. 2.2 - 13.10.2008