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2.2.3
Universal inputs/outputs U...
Analogue inputs,
Lmax = 30 m
(maximum number)
Digital inputs w/o optical isolation,
Lmax = 30 m
(maximum number)
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
2.2.4
Power supply to probes and terminals
can be used to power any active probes using the 24/21 Vdc ± 10% (P+5*/P+3*) available at terminal +VDC (J2). The maximum current
+Vdc
available is 150 mA, protected against short-circuits.
+5Vref
to power the 0 to 5V ratiometric probes, use the 5 Vdc (± 5%) available at terminal +5VREF(J24). The maximum current available is 60 mA.
P+3**********: 21 Vdc ± 10%; P+5**********: 24 Vdc ± 10%
Vterm
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.
2.2.5
Digital inputs ID... IDH...
Type
Optically-isolated
Lmax
30 m
SMALL
Maximum number
MEDIUM/ BUILT-IN DRIVER
LARGE
Minimum digital input pulse
Normally open (open-closed-open)
Normally closed (closed-open-closed)
detection time
Power supply to the inputs External
Classifi cation of measuring
Category I: 24 Vac/Vdc (J5, J7, J20)
circuits (CEI EN 61010-1)
Category III: 230 Vac (J8, J19)
Digital input current draw at 24 Vac/Vdc
Digital input current draw at 230 Vac
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.
Copyright HPL March 2021
pRack PR300T +0300018EN rel. 1.5 - 02.05.2017
- 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)
- PT100 probes (-100T200°C)
- 0 to 1 Vdc/0 to 10 Vdc signals from probes powered by controller
- 0 to 1 Vdc/0 to 10 Vdc signals powered externally
- 0 to 20 mA /4 to 20 mA inputs from probes powered by the
controller
- 0 to 20 mA /4 to 20 mA inputs powered externally
- 0 to 5 V signals from ratiometric probes powered by controller
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
- voltage-free contacts
- fast digital inputs
type: voltage-free contact
max current: 10 mA
max frequency 2kHz and resolution ±1 Hz
0 to 10 Vdc (maximum current 2 mA)
PWM (output 0/3.3 Vdc, maximum current 2 mA, frequency:
2kHz asynchronous)
SMALL MEDIUM/ BUILT-IN
5
2
5
5
4
4
5
SMALL MEDIUM/ BUILT-IN
5
max 2
SMALL MEDIUM/ BUILT-IN
5
5
no. of optically-isolated
no. of optically-isolated inputs, 24 Vac/Vdc or 230 Vac -
inputs, 24 Vac or 24 Vdc
50/60 Hz
8
None
12
2
14
4
200 ms
400 ms
IDH...: 230 Vac (+10/-15%) 50/60 Hz
5 mA
5 mA
10
Page 59 of 179
LARGE
DRIVER
8
10
3 (2 on U1...U5,
4 (2 on U1...U5,
1 on U6...U8)
1 on U6...U8, 1 on U9...U10)
6
6
8
10
6
6
(max 4 on U1...U5,
(max 4 on U1...U5,
3 on U6...U8)
3 on U6...U8,
2 on U9...U10)
7
9
(max 4 on U1...U5,
(max 4 on U1...U5,
3 on U6...U8)
3 on U6...U8,
2 on U9...U10)
6
6
LARGE
DRIVER
8
10
4
6
(max 2 on U1...U5,
(max 2 on U1...U5,
max 2 on U6...U8)
max 2 on U6...U8,
2 on U9...U10)
LARGE
DRIVER
8
10
8
10
P41135 Rev 03
Tab. 2.f
Tab. 2.g
Tab. 2.h
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