Carel humiSonic Compact - Production Control Via Network; Washing Cycle Activation Via Network

26
ENG
“Ultrasound for fancoil” +0300059IE - rel. 1.7 - 24.10.2022
“D”
digital variables (Modbus®: COILS) R/W
CAREL Modbus®
38 38 Wash activation from serial R/W
39 39 Skip Autotest or washing while in progress R/W
43 43 Reset piezoelectric transducer hour counter R/W
44 44 Backup unit ready for production R
46 46 Production limiting in progress (limit probe function) R
47 47 On/O control from keypad for main/secondary network R/W
49 49 On/o control from main unit keypad R/W
50 50 On/o control from secondary unit 1 keypad R/W
51 51 On/o control from secondary unit 1 keypad R/W
52 52 On/o control from secondary unit 1 keypad R/W
54 54 Parameter bn: disable alarm buzzer R/W
Tab. 11.g
11.2 Production control via network
To control production via a he connection, congure the humidier using
following parameters:
Digital 27, Digital 37 and Integer 60 (Modbus 188)
When the D37 is at 1, the humidier excludes the external command
signals (external regulator or probes) and uses the value of Integer 60
(modbus 188) as like comand signal. The humidity production can be
managed in two modes:
To manage the production level in percentual mode:
• Set D 37 = 1;
• Set parameter A0 = 1 (Carel 20, Modbus 148, Proportional Mode);
• Set integer variable 60 Carel (188 Modbus) to the desired level
(0-1000 = 0-100.0%).
To manage the production with a humidity probe managed by the main:
• Set D 37 = 1;
• Set parameter A0 = 2 (Carel 20, Modbus 148, Humidity probe Mode);
• Set integer variable 60 Carel (188 Modbus) to the desired level
(0-1000 = 0-100.0 rH%);
• Set integer variable 52 Carel (180 Modbus) to the desired humidity
setpoin.
When the D37 is at 1, if the communication is lost for the seconds settled
by parameter C4, is generated the “Main Oine” alarm (see alarms table)
and the production stops.
Production is activated/deactivated via digital parameter D27 (see
parameter table).
If D27 = 1 the humidier is disabled and production stops
if D27 = 0 the humidier is enabled and production is activated.
D27 is independent from the state of D37.
11.3 Washing cycle activation via network
A washing cycle can be performed at any time by managing digital
variable 38.
Setting the variable to 1 will immediately activate a washing cycle, even
if the unit is in standby, and even if both automatic washing and washing
due to inactivity are disabled by their corresponding parameters.
The variable will keep the value 1 throughout the duration of the washing
cycle, and will automatically be reset at the end of the cycle.