Carel humiSonic Compact - Auxiliary Card Connections (Optional)

14
ENG
“Ultrasound for fancoil” +0300059IE - rel. 1.7 - 24.10.2022
6.6 Auxiliary card connections (optional)
J17
J8
1 2 1 2 3 4 5
M9
M10
+ GND 21Vdc
Fig. 6.i
J8
tLAN terminal connection (optional) with 30 Vdc power supply
(24 Vac rectied)
M9
tLAN AUX serial connector
M10
M10.1 - + Analogue proportional controller/probe/humid.
M10.2 - + GND signal reference
M10.3 - +21Vdc for active probe supply
M10.4 - N.U.
M10.5 - N.U.
J17
AUX input - N.U.
The auxiliary card features the following connections
ON/OFF CONTROLLER (humidostat or remote switch)
• jumper inputs M14.1 and M14.2 (enable) on the main board;
• connect terminals M10.1 and M10.2 to a humidostat or a remote
switch (voltage-free contact)
• set parameter A0=0 to enable On/O operation (see chapter
"Conguration parameters").
EXTERNAL PROPORTIONAL CONTROLLER (modulating)
• jumper inputs M14.1 and M14.2 (enable) on the main board;
• connect terminals M10.1 and M10.2 (production request) to an
external controller;
• set parameter A0=1 to enable modulating control (see chapter
"Conguration parameters")
• and parameter A2 depending on the chosen signal (0 to 10 V, 2 to 10V,
0 to 20, 4 to 20 mA) (see chapter "Conguration parameters").
CONTROL WITH CAREL HUMIDITY PROBE
• jumper inputs M14.1 and M14.2 (enable) on the main board;
• connect the probe to terminals M10.1, M10.2. The power line M10.3
can be connected with cable of maximum lenght of 2 m (6,6 ft); for
greater lenghts use an external power supply with the signal earth
electrically connected to the signal earth of the controller.
• set parameter A0=2 to enable probe control (see chapter
"Conguration parameters") and parameter A2 depending on the
chosen signal (0 to 10 V, 2 to 10V, 0 to 20, 4 to 20 mA) (see chapter
"Conguration parameters").
Fig. 6.j
If non-CAREL probes are used, check:
• voltage signal: 0 to 10 Vdc, 2 to 10 Vdc, terminal M10.1 (GND: M10.2);
• current signal: 4 to 20, 0 to 20 mA, terminal M10.1 (GND: M10.2).
ENABLE PROBE TH AS HUMIDITY/ DEW POINT TEMPERATURELIMIT
In control modes A0=0, A0=1, A0=2, the built-in humidity probe TH can
be used as a limit probe, setting parameter bH=1 or bH=2 respectively.
The limit set point and proportional band are set by parameters SL and
bL.
Final checks
The following conditions represent correct electrical connection:
□ mains power to the humidier corresponds to the voltage shown on
the rating plate;
□ a mains disconnect switch has been installed so as to be able to
disconnect power to the humidier;
□ terminals M14.1, M14.2 are jumpered or connected to a contact to
enable operation;
□ if the humidier is controlled by an external controller (with auxiliary
card), the signal earth is electrically connected to the controller earth.