Carel PRK300D0E0, User Manual, Page: 12 / 104

12
ENG
pRack +0300025EN rel. 1.3 - 17.12.2015
2.2.3 Universal inputs/outputs U...
Analogue inputs,
Lmax = 30 m
(maximum number) SMALL MEDIUM/ BUILT-IN
DRIVER/EXTRALARGE
LARGE
- CAREL NTC probes (-50T90°C; R/T 10 kΩ±1% at 25°C);
- HT NTC (0T150°C); - PTC (600Ω to 2200Ω)
- PT500 (-100T400°C) - PT1000 (-100T400°C) 5 8 10
- PT100 probes (-100T200°C) 2 3 (2 on U1...U5,
1 on U6...U8) 4 (2 on U1...U5,
1 on U6...U8, 1 su U9...U10)
- 0 to 1 Vdc/0 to 10 Vdc signals from probes powered by controller
max t
ot 5
5
max t
ot 8
6
max t
ot 10
6
- 0 to 1 Vdc/0 to 10 Vdc signals powered externally 5 8 10
- 0 to 20 mA /4 to 20 mA inputs from probes powered by the
controller
max t
ot 4
4
max t
ot 7
6
(max 4 on U1...U5,
3 on U6...U8)
max t
ot 9
6
(max 4 on U1...U5,
3 on U6...U8,
2 on U9...U10)
- 0 to 20 mA /4 to 20 mA inputs powered externally 4 7
(max 4 on U1...U5,
3 on U6...U8) 9
(max 4 on U1...U5,
3 on U6...U8,
2 on U9...U10)
- 0 to 5 V signals from ratiometric probes powered by controller 5 6 6
Input precision: ± 0.3 % f.s.
Time constant for each input: 0.5 s
Classifi cation of measuring circuits (CEI EN 61010-1): category I
Digital inputs w/o optical isolation,
Lmax = 30 m
(maximum number) SMALL MEDIUM/ BUILT-IN
DRIVER/EXTRALARGE
LARGE
- voltage-free contacts 5 8 10
- fast digital inputs
type: voltage-free contact
max current: 10 mA
max frequency 2kHz and resolution ±1 Hz max 2 4
(max 2 on U1...U5,
max 2 on U6...U8) 6
(max 2 on U1...U5,
max 2 on U6...U8,
2 on U9...U10)
Important:
•
for active probes powered externally (0 to 1 V, 0 to 10 V, 0 to 20 mA, 4 to 20 mA ), to avoid irreparably damaging the controller, implement adequate current
protection measures that must ensure < 100 mA;
•
the ratiometric probes can only be powered by the controller;
•
on power-up, the universal inputs/outputs remain shorted to GND for around 500 ms until the end of the confi guration procedure.
Analogue outputs w/o optical isolation
(maximum number), Lmax = 30 m SMALL MEDIUM/ BUILT-IN
DRIVER/EXTRALARGE
LARGE
0 to 10 Vdc (maximum current 2 mA) 5 8 10
PWM (output 0/3.3 Vdc, maximum current 2 mA, frequency: 2kHz
asynchronous) 5 8 10
Tab. 2.f
2.2.4 Power supply to probes and terminals
+Vdc
can be used to power any active probes using the 24/21 Vdc ± 10% (P+5*/P+3*) available at teVDC (J2). The maximum current available is
150 mA, protected against short-circuits.
+5Vref to power the 0 to 5V ratiometric probes, use the 5 Vdc (± 5%) available at te5VREF(J24). The maximum current available is 60 mA.
Vterm
P+3**********: 21 Vdc ± 10%; P+5**********: 24 Vdc ± 10%
Used to power an external terminal as an alternative to the one connected to J10, Pmax = 1.5 W
Important: if the length exceeds 10 m, use shielded cable with the shield connected to earth. In any case, the max length allowed is 30 m.
Tab. 2.g
2.2.5 Digital inputs ID... IDH...
Type Optically-isolated
Lmax 30 m
no. of optically-isolated
inputs, 24 Vac or 24 Vdc no. of optically-isolated inputs, 24 Vac/Vdc or 230 Vac
- 50/60 Hz
Maximum number
SMALL 8 None
MEDIUM/ BUILT-IN DRIVER/EXTRALARGE 12 2
LARGE 14 4
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
IDH...: 230 Vac (+10/-15%) 50/60 Hz
ID...: 24 Vac (+10/-15%) 50/60 Hz o 28 to 36 Vdc (+10/-20%)
Classifi cation of measuring
circuits (CEI EN 61010-1) Category I: 24 Vac/Vdc (J5, J7, J20)
Category III: 230 Vac (J8, J19)
Digital input current draw at 24 Vac/Vdc 5 mA
Digital input current draw at 230 Vac 5 mA
Tab. 2.h
Note:
•
separate as much as possible the probe and digital input cables from cables to inductive loads and power cables, so as to avoid possible electromagnetic
disturbance. Never run power cables (including the electrical panel cables) and signal cables in the same conduits;
•
the two 230 Vac or 24 Vac/Vdc inputs on terminals J8 (ID13, ID14) or J19 (ID15, ID16) have the same common pole and therefore both will operate at
230 Vac or 24 Vac/Vdc. There is basic insulation between the two inputs; there is reinforced insulation between the inputs and the rest of the controller;
•
ID1...ID8, ID9 to ID12, ID17, ID18 have functional insulation from the rest of the controller;
•
for DC voltage inputs (24 Vdc) either the + or the - can be connected to common terminal;
•
the rating of the external contact connected to the digital inputs must be at least 5 mA.