Carel k.Air, User Manual, Page: 19 / 192

19
Hardware installation k.air +030220981 rel. 1.2 - 01.12.2020
Connection of active temperature and humidity probes
See the table at the beginning of the paragraph for the maximum number of probes that can be connected. This depends on
the type of power supply. The distinction is made between probes powered by the controller (+VDC terminal) and probes
powered externally, as well as between active probes with voltage or current output signals. For the operating range, see the
probe data sheets. The controller can be connected to all CAREL DP* series active temperature and humidity probes confi gured
with 4-20 mA signal.
Note:
the k.Air mini models do not accept 0-10 Vdc signals as inputs from probes powered by the controller.
M
out T
+ (G)
out H
30220980_021_R01
G G0 U1 U2 U3 GND +VDC U4 GND U5 GND VG VG0 Y1 Y2 Y3 Y4 ID
1
ID
2
ID
3
ID
4
ID
5
ID
6
ID
7
ID
8
IDC1
J1
J2 J3
J4 J5
d r a c S M B d r a c s u B d l e i F
+V
te
rm
GND
+5VREF
J24
U6 U7 U8 GND
J6
ID
9
ID10 ID11 ID12 IDC9
J7
ID13H ID13 IDC13 ID14 ID14H
J8
J20 J19
ID15H ID15 IDC15 ID16 ID16H Y5 Y6 ID17 ID18 IDC17 U9 GND U10 GND
Fig. 3.l
C ontroller terminals P robe terminals D escription
GND M Reference
+VDC + (G) Probe power supply
U1 outH Humidity probe output
U2 outT Temperature probe output
Connection of active probes with 0-10 V output powered by the controller
See the table at the beginning of the paragraph for the maximum number of probes that can be connected. For the operating
range, see the probe data sheets.
M
out T
+ (G)
out H
30220980_021_R01
G G0
U1 U2 U3 GND +VDC U4 GND U5 GND
VG VG0 Y1 Y2 Y3 Y4
ID
1
ID
2
ID
3
ID
4
ID
5
ID
6
ID
7
ID
8
IDC1
J1
J2 J3 J4 J5
d r a c S M B d r a c s u B d l e i F
+V
te
rm
GND +5VREF
J24
U6 U7 U8 GND
J6
ID
9
ID10 ID11 ID12 IDC9
J7
ID13H ID13 IDC13 ID14 ID14H
J8
J20 J19
ID15H ID15 IDC15 ID16 ID16H Y5 Y6 ID17 ID18 IDC17 U9 GND U10 GND
Fig. 3.m
C ontroller terminals P robe terminals D escription
GND M Reference
+VDC + (G) Probe power supply
U1 outH Signal 1
U2 outT Signal 2