16
+050003290 - 1.4 - 29.09.2006
Relation between AWG and wire cross-section
AWG Cross-section (mm
2
) Current
20 0.5 2
15 1.5 6
14 2.5 8
pLAN network/user terminal connection
type RS485 half-duplex asynchronous
transmission speed 62.5 Kbps or 115.2 Kbps, selectable via software
terminal connector 6 pin telephone (J10)
pLAN network/graphic terminal/aria terminal connector 3 pin plug-in connector (J11)
The maximum distance between the pCO and user terminal is shown in the following table.
cable type power supply distance power supply
telephone 50 m taken from the pCO (150 mA)
AWG24 shielded cable 200 m taken from the pCO (150 mA)
AWG20/22 shielded cable 500 m separate power supply via TCONN6J000
The maximum distance between two pCO
3
controllers with AWG20/22 shielded cable is 500 m.
Note:
• a maximum of one terminal (pCOT, pCOI, pGD0, pGD1) can be connected, or two terminals but without using use the backlighting
on display. One version of the pCO
3
features optically-isolated connection to the pLAN network.
• the graphic terminal and aria terminal should be always powered with a separate power supply.
• the 21 Vdc present at +Vterm (J24) can be used to power an external terminal with a maximum input of 2 W. Only one terminal
can be connected (for example PLD terminal or ARIA terminal) in addition to the one connected to terminal J10.
Other specifi cations
storage conditions -40T70 °C, 90% RH non-condensing
operating conditions -25T70 °C, 90% RH non-condensing
index of protection IP20, IP40 front panel only
environmental pollution normal
class according to protection against electric shock to be incorporated into Class I and/or II appliances
PTI of the insulating materials 250 V
period of stress across the insulating parts long
type of action 1C
type of disconnection or microswitching microswitching
category of resistance to heat and fi re category D (UL94 - V0)
immunity against voltage surges category 1
ageing characteristics (operating hours) 80,000
no. of automatic operating cycles 100,000 (EN 60730-1); 30,000 (UL 873)
software class and structure Class A
category of immunity to voltage surges (CEI EN 61000-4-5) Category III
The device is not designed to be hand-held
WARNING
• for applications subject to strong vibrations (1.5 mm pk-pk 10/55 Hz), secure the cables connected to the µ pCO
3
using clamps
placed around 3 cm from the connectors
• If the product is installed in industrial environments (application of the EN 61000-6-2 standard) the length of the output connections
must be less than 30 m.
• installation must be performed according to the standards and legislation in force in the country where the appliance is used;
• for safety reasons the appliance must be housed inside an electrical panel, so that the only accessible part is the display and the
control keypad;
• all the very low voltage connections (analogue and digital inputs at 24 Vac/Vdc, analogue outputs, serial bus connections, power)
must have reinforced or double insulation from the mains;
• in the event of malfunctions do not attempt to repair the appliance, but rather contact the CAREL service centre;
• in domestic environments, the connection cable between the pCO
3
and the terminal must be shielded.
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