Carel humiSonic Compact - Dipswitch Configuration; Main Board Connections

13
ENG
“Ultrasound for fancoil” +0300059IE - rel. 1.7 - 24.10.2022
6.4 Dipswitch conguration:
2
3
64
7
5
1
8
ON
Fig. 6.d
1. Communication
OFF Serial 485 Carel/Modbus
ON tLAN
2-3 tLAN address (if 1 is ON)
OFF/OFF - -
OFF/ON address 1
ON/OFF address 2
ON/ON address 3
4 Serial 485 / tLAN baud rate
OFF 19200
ON 9600
5-6 Humidity set point
OFF/OFF 50 %rH
OFF/ON 30 %rH
ON/OFF 40 %rH
ON/ON 60 %rH
7 TAM
OFF disabled
ON enabled
8 Production transducer management (only for 2-transducer version)
OFF --> parallel management (modulation of all 2)
ON --> if demand is less than 50%, it works only one transducer at a
time, alternately
Tab. 6.c
6.5 Main board connections
Depending on the type of signal used, atomized water production can be
enabled and/or managed in dierent ways.
HUMIDOSTAT OR REMOTE CONTACT (ON/OFF action)
Production is enabled by closing terminal M14.
M14 can be connected to a switch, a humidistat or a controller (voltage-
free contact, max 5 Vdc open, max 7 mA closed).
TH TEMPERATURE/HUMIDITY PROBE (Optional)
If the TH TEMPERATURE/HUMIDITY PROBE is connected to the G termina,
atomized water production starts if:
• the terminal M14 is closed;
• in humidity control mode (A0 = 3), The humidity value measured by
the probe is lower than the set point (pre-set at 50% rH and modiable
via dipswitches 5-6 or on the display);
• in dew point temperature control mode (A0 = 4), the dew point value
calculated based on the temperature and humidity measured by the
probe is lower than the set point (pre-set at 10°C/50°F and modiable
via the optional display).
Remote
ON/OFF
M 14
+ GND
Fig. 6.e
485 SERIAL CONNECTION
Carel/Modbus protocol
RS 485
RX+/TX+
GND
M 11
RX-/TX-
Fig. 6.f
NOTICE: for RS485 connections in household (IEC EN 55014-1) and
residential (IEC EN 61000-6-3) environments, use shielded cable (with
shield connected to PE both on the terminal and controller ends),
maximum length specied by the EIA RS485 protocol, equivalent to
European standard CCITT V11, using AWG26 twisted pair cable; the input
impedance of the 485 stage is 1/8 unit-load (96 kOhm).
This conguration allows a maximum of 256 devices to be connected,
with cables in separate conduits from the power cable.
ALARM RELAY
This is used to signal one or more alarms via a remote connection.
Alarm relay
NO COMMON
M 15
Fig. 6.g
ALARM RELAY POWER SUPPLY
The connections shown in gure can be used to directly control a light or
an auxiliary relay coil 30 Vdc (24 Vac rectied), 3 W max.
+24 V
GND
Alarm signal
(max 3W)
M 15
Fig. 6.h
NOTICE: in industrial environments (IEC EN61000-6-2) the signal cables
leaving the unit must not exceed 10 m (33 ft)
(1)
in length: remote on/
o digital input (terminals M14.1...M14.2) and shielded cable for RS485
communication.