pCO Sistema
Code: +030220336 - rel. 1.5 - 22/12/10
16
2.4 pCO
1
technical specifications
• pCO
pCOpCO
pCO
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11
1
analogue inputs
analogue inputsanalogue inputs
analogue inputs
Analogue conversion 10-bit A/D converter embedded in CPU
Maximum number SMALL MEDIUM
6 8
Type Universal: 4 (inputs B1, B2, B3, B4)
-CAREL NTC (-50T90°C; R/T 10kΩ±1% at 25°C) HT NTC (0T150°C)
-Voltage 0 to 1 Vdc, 0 to 5 Vdc ratiometric
-Current 0 to 20 mA or 4 to 20 mA. Input resistance: 100Ω.
Can be selected via dipswitch
Passive: 4 (inputs B5, B6, B7, B8)
-CAREL NTC (-50T90°C; R/T 10kΩ±1% at 25°C) HT NTC (0T150°C)
-Digital input (inputs B5, B6) from voltage-free contact
Can be selected via dipswitch
Minimum normally-open voltage-free digital input
detection time
Normally open (open-closed-open) 250 ms
Normally closed (closed-open-closed) 250 ms
Time constant for each input 2s
Input precision NTC ± 0.5°C
Input precision 0-1V ± 3 mV
Input precision 0-5V ± 15 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 (J2) can be used. The maximum current is 100 mA, protected against
short-circuits. To supply the 0/5V ratiometric probes, use the 5V available at the +5Vref (terminal J9). The maximum current is 60 mA.
• pCO
pCOpCO
pCO
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11
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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
SMALL 8 None 8
MEDIUM 12 2 14
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:
• the two 230 Vac or 24 Vac/Vdc inputs at terminals J8 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
1
11
1
analogue outputs
analogue outputsanalogue outputs
analogue outputs
Type optically-isolated
Maximum number 2 outputs (Y1-Y2), 0 to 10 Vdc and
2 outputs (Y3-Y4) PWM with 5 V pulse of programmable
duration
SMALL, MEDIUM
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