ICMA S303 - P4: ACOUSTIC SIGNAL MANAGEMENT; P5: RELAY LOGIC SELECTION

DIGITAL CONTROL UNIT FOR THERMAL
SOLAR SYSTEMS - Art. S303
DIGITAL CONTROL UNIT FOR THERMAL
SOLAR SYSTEMS - Art. S303
ICMA S.p.a. - Heating Technologies - www.icmaspa.it FIS303ENCL - 01/2022
Icma SpA - Via Garavaglia, 4 - 20012 Cuggiono (MI) ITALY Tel: +39 02 97249134 - +39 02 97249135
www.icmaspa.it - sales@icmaspa.it
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TDST24M100SE 035912 111220
P4: ACOUSTIC SIGNAL MANAGEMENT
Using this parameter it is possible to enable or disable the
acoustic signalling of the control unit (keyboard tones,
alarms, and diagnostics).
Enable (1)/Disable (0) acoustic signal
Data Regulation range Default
BEEP Off .. On On
Note: ‘on’ enables acoustic signalling, while ‘off’
disables it.

SELECT THE DESIRED OUTPUT AND
PRESS THE ‘  ‘ KEY.
CHANGE THE OUTPUT LOGIC USING
THE ‘ ‘ or ‘  ‘ ARROWS.

PRESS THE ‘  ‘ KEY TO CONFIRM THE PROGRAMMING
OR PRESS THE ‘ esc ’ KEY TO CANCEL THE CHANGES.
Output logic for OUT 2
Data Regulation range Default
OUT 2 0 .. 1 1
If the function is not supported by the layout selected the
controller will display ‘NONE’.
Note: ‘1’ means Normally Open (N.O.) logic, while ‘0’
means Normally Closed (N.C.) logic.
AFTER SELECTING PARAMETER P5 PRESS
THE ‘  ‘ KEY.

USING THE ‘ ‘ or ‘  ‘ ARROWS IT IS POSSIBLE TO
SCROLL THROUGH THE ACTIVE OUTPUTS.

P5:
RELAY LOGIC SELECTION
Using this parameter it is possible to reverse the output logic
from Normally Open (N.O.) to Normally Closed (N.C.) and
vice- versa. It is only possible to modify the output logic for
the relays actually active in the selected setup.
Value ‘1’ for these parameters means that the output logic is
reset to the N.O. value (default).
OUT 2 is the only output for which the output logic can be
changed.
If the controller displays ‘NONE’ it means that ‘OUT2’ is not
provided for in the selected layout.