Connection Of Digital Inputs; Analogue Outputs - Carel k.Air User Manual

ENG
32 | 3. Hardware installation

Connection of digital inputs

There are no specific constraints on the maximum number of inputs that can be connected. For the k.Air
mini controller, see the figure above, while for k.Air large, a possible connection example is shown below.
See manual +0300057EN.
Fig.3.q

3.6.3 Analogue outputs

The controller provides non- optically isolated 0- 10 Vdc analogue outputs powered directly by the
controller (k.Air mini), and optically isolated outputs powered externally (k.Air large). See manual
+0300057EN.
Maximum number of analogue outputs that can be connected
Digital inputs
0-10 Vdc, optically isolated on Y1, Y2, Y3, Y4, Y5, Y6
0-10 Vdc, optically isolated on Y1, Y2
Characteristics of analogue outputs Y...
k.Air mini internal; k.Air large external, 24 Vac (+ 10/-15%) or 28-36 Vdc (+ 10/-20%) on VG
Power supply
(+), VG0 (-) (class 2)
Precision k.Air mini ± 3% full scale; k.Air large ± 2% full scale
Resolution 8 bits
Stabilisation time From 1 s (slew rate 10 V/s) to 20 s (slew rate 0.5 V/s) selectable via SW
Maximum load 1 kΩ (10 mA)
Maximum connection
k.Air mini 10 m; k.Air large 30 m
cable length
Important:
for lengths > 10 m, a shielded cable is required, with the shield connected to earth;
l
other outputs of the same type can be connected in parallel to a 0-10 Vdc analogue output or an
l
external voltage. The resulting voltage will be the higher value. Correct operation is not
guaranteed if actuators with voltage inputs are connected;
for k.Air large, power analogue outputs VG-VG0 at the same voltage supplied at G-G0: connect G to
l
VG and G0 to VG0. This applies to both AC and DC power supplies.
k.Air mini k.Air large
0 6
2 14
k.Air +030220981 rel. 1.1 – 31.03.2020
c.pCOe
0
0
Tab.3.o
Tab.3.p