5
+050003299 - 1.6 03.08.2011
Analogue outputs
type 0 to 10 Vdc optically-isolated
maximum number 4, 4, 6, on the SMALL, MEDIUM and EXTRALARGE N.O./N.C., LARGE boards respectively
power supply external 24 Vac/Vdc
resolution 8 bit
maximum load 1 k (10 mA)
precision ± 2 % of end scale on outputs: Y1, Y2, Y3 and Y4
-2%/+5% of end scale on: Y5 and Y6
Digital outputs
type relay
maximum number
8: SMALL; 13: MEDIUM; 18: LARGE; 27: EXTRALARGE N.C.; 29: EXTRALARGE N.O.
For the requirements refer to Figs. 3 to 5 (reference NO*, NC* and C*). Note the presence of outputs with changeover contacts kept separately
(that is, without the poles shared between diff erent outputs). Groups from 2 to 5 outputs have 2 “common” poles for easy assembly. Make
sure that the current running through the common terminals does not exceed the rated current of each individual terminal, that is 8A.
Insulation distance the outputs can be divided into groups. There is double insulation between groups (between cells in the table).
Note: the relays in the same group must have the same power supply (24 or 230 Vac).
Makeup of the groups
version relays with same insulation
SMALL
Type of relay
1…7 8 - - -
A type A type
MEDIUM
Type of relay
1…7 8 9…13 - -
A type A type A type
LARGE
Type of relay
1…7 8 9…13 14…18 -
A type A type A type A type
EXTRALARGE N.O.
Type of relay
1…7 8 9…13 14…16 17…20 21…24 25…29
A type A type A type B type B type B type B type
EXTRALARGE N.C. 1…7 8 9…13 14…16 17…20 21…24 25…27
Type of relay A type A type A type C type C type C type C type
Note: the relays in the individual cells of the table have basic insulation between them, while between groups
(cell-cell) there is double insulation.
Changeover contacts 1: SMALL (relè 8); 3: MEDIUM e EXTRALARGE N.O./N.C. (relè 8, 12 e 13); 5: LARGE (relè 8, 12, 13, 14 e 15)
Switchable power
warning: the relay outputs have diff erent characteristics according to the model of pCO
3
relay
type A
type of relay: SPDT, 2000 VA, 250 Vac, 8 A resistive
pCO
3
approval: UL873: 2.5 A resistive, 2 A FLA, 12 A LRA, 250 Vac, C300 pilot duty (30000 cycles)
EN 60730-1: 2 A resistive, 2 A inductive, cos= 0.6, 2(2) A (100000 cycles)
relay
type B
type of relay: SPDT, 1250 VA, 250 Vac, 5 A resistive
pCO
3
approval: UL873: 1 A resistive, 1 A FLA, 6 A LRA, 250 Vac, D300 pilot duty (30000 cycles)
EN 60730-1: 1 A resistive, 1 A inductive, cos= 0.6, 1(1) A (100000 cycles)
relay
type C
type of relay: SPDT, 1250 VA, 250 Vac, 5 A resistive
pCO
3
approval: UL873: 1 A resistive, 1 A FLA, 6 A LRA, 250 Vac, D300 pilot duty (30000 cycles)
EN 60730-1: 1 A resistive, 1 A inductive, cos= 0.6, 1(1) A (100000 cycles)
SSR outputs
(optional on the models
where featured)
1: SMALL (output 7); 2: MEDIUM (outputs 7 & 12); 3 or 4: LARGE (outputs 7, 12 & 14 or 7, 12, 14 &15)
Operating voltage: 24 Vac/Vdc; Maximum load current = 0,5A; Maximum pulse load current = 1,2A.
If the load requires a higher current, use an external SSR.
To power external loads, use the same power supply as the pCO (connected to terminals G/G0); as
specifi ed by Carel, this must always be dedicated and not in common with the power supply to other devices on
the electrical panel (such as contactors, coils, etc.).
Make sure that the load connection cables are as short as possible and away from power cables. For the
connection diagrams see the pCOSistema manual +0300009IT.
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)
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