pCO Sistema
Code: +030220336 - rel. 1.5 - 22/12/10
24
2.8 pCO
C
technical specifications
• pCO
pCOpCO
pCO
C
CC
C
analogue inputs
analogue inputsanalogue inputs
analogue inputs
Analogue conversion 10-bit A/D converter embedded in CPU
Maximum number 8
Type
Universal: 4 (inputs B5, B6, B7, B8)
-Carel NTC (-50T90°C; R/T 10KΩ at 25°C)
-Voltage 0 to 1 V
-Current 0 to 20 mA or 4 to 20 mA. Input resistance 100Ω
Can be selected by jumper.
Passive: 4 (inputs B1, B2, B3, B4)
-Carel NTC (-50T90°C; R/T 10KΩ at 25°C)
Settling time 2 s
Input precision NTC ± 0.5 °C
Input precision 0-1V ± 3 mV
Input precision 0-20 mA ± 0.06 mA
Warning:
Warning:Warning:
Warning: for the power supply of any active probes, the 24 Vdc available at the +Vdc terminal (J1) can be used. The maximum current is 100 mA, protected against
short-circuits.
On the pCO
C
,
unlike the pCO
B
, the 0/1 Vdc signal is limited to the restricted 0-1 V range and therefore is not always compatible with the standard 10 mV/°C signal of
the Carel probes (for temperatures below 0°C and above 100°C, a probe alarm may be generated). For the temperature signals, use 4/20 mA or NTC. This is also true
for the pCO
3
, pCO
1
and pCO
xs
.
• pCO
pCOpCO
pCO
C
CC
C
digital inputs
digital inputsdigital inputs
digital inputs
Type optically-isolated
Maximum number
no. optically-isolated inputs at 24 Vac 50/60 Hz
or 24Vdc
no. optically-isolated inputs at 24 Vac/Vdc or 230
Vac 50/60 Hz
Total
10 2 12
Minimum digital input pulse detection time
Normally open (open-closed-open) 200 ms
Normally closed (closed-open-closed) 400 ms
Power supply to the inputs external
230 Vac or 24 Vac (50/60 Hz) +10/-15%
24Vdc +10/-20%
Warnings:
Warnings: Warnings:
Warnings:
• the two 230 Vac or 24 Vac/Vdc inputs at terminals J21 have the same common pole and consequently both must be set to the same voltage (230 Vac or 24
Vac/Vdc). There is primary insulation between the two inputs;
• for DC voltage inputs (24Vdc) connect the negative pole to the common terminal
• pCO
pCOpCO
pCO
C
CC
C
analogue outputs
analogue outputsanalogue outputs
analogue outputs
Type optically-isolated
Maximum number 2 outputs (Y1 and Y2), 0 to 10 Vdc
Power supply external 24 Vac/Vdc
Precision outputs Y1-Y2 ± 1% of full scale
Resolution 0.5%
Settling time outputs Y1-Y2 2s
Maximum load
1 k
(10mA)
Note:
Note:Note:
Note: unlike the pCO
B
, outputs Y1 and Y2 are not linked to digital outputs 12 and 13.
• pCO
pCOpCO
pCO
C
CC
C
digital outputs
digital outputsdigital outputs
digital outputs
Insulation distance
The relay outputs have different features depending on the model of PCO
The outputs can be divided into groups. There is double insulation between the groups (cells in the table) and consequently these may have different
voltages. There is also double insulation between each terminal of the digital outputs and the rest of the controller. The relays belonging to the same
group (individual cells in the table) have basic insulation and can therefore have the same power supply (24 Vac or 230 Vac).
Makeup of the
groups
Version Reference of the relays with the same insulation
Group 1 Group 2 Group 3 Group 4 Group 5 Group 6 Group 7
- 1 to 2 3 to 5, 12 6 to 8, 13 9 to 11
Type of relay Type A Type A Type A Type A
Number of
changeover contacts
3: outputs 9, 10 and 11
Switchable power Relay type A
Relay ratings SPDT, 2000 VA, 250 Vac, 8 A resistive
pCO
C
approval
UL873 2.5 A resistive, 2 A FLA, 12 A LRA, 250 Vac (30,000 cycles)
EN 60730-1 2 A resistive, 2 A inductive, cos
=0.6, 2(2)A (100,000 cycles)
Maximum number
of SSR outputs
-
Warnings:
Warnings:Warnings:
Warnings:
• The groups that the digital outputs are divided into have two common pole terminals to simplify wiring.
• Make sure that the current running through the common terminals does not exceed the rated current of an individual terminal, that is, 8 A.
To Next Page
Loading...
Need help?
General
