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IN
PU
T
0 - 10 V
0
1
2
3
4
5
6
7
8
9
10
Volt
°C
0
10
20
30
40
50
60
70
80
90
Input
Input 0 - 10 VS
0 - 10 VS setpoint °C
setpoint °C
2,
2,
2,7
ON ====
ON = 2,95 V = 25°C
Appli ca ti on
Cod.
Simb.
Valore
Descrizione
Impostazione
Fabbrica
Impostazione uti-
lizzo BCM con
HSCP
799
AC
0/10 V analogue input function:
0
Manual adjustment target temperature
1
Outdoor temperature sensor
1
2
0 / 10 V Temperature control target
2
3
0 / 10 V Modulation control
31
HL
°C
CH#1: Burner Minimum Setpoint,
200 ÷ 400
350
=
39
HH
°C
CH#2: Burner Maximum Setpoint
450 ÷ 850
850
=
3.4 BCM (H
CM
) PARAMETERS – SETTING
FOR 0-10 V USE.
1 Set parameter 39
CH#2: Burner Maximum Setpoint at 10V
2 Value at 0 V always corresponds to 0°C
3 Set parameter 31
CH#1: Burner Minimum Setpoint, below which the request value will
be deleted and the burner will switch o
ff
With this co
nfigura
tion, the system will set a temperature based on the
received voltage of the 0 - 10 V inlet.
Th
e setting will be between the value of parameter 31 (minimum)
and 39 (maximum) when the temperature is lower than 2 °C when
compared to the parameter 31 (minimum) the central heating request
will be cancelled.
Th
e central heating request restarts when the input voltage corresponds
to the value of parameter 31 (minimum).
By changing parameter 39, you can adjust the gradient of the curve.
Th
e value of the voltage with reference to the temperature is calculated
as follows:
V = x C° * 10 / par 39 or °C = V * par 39/10
Standard setting condition example:
Parameter 39 = 85°C
Parameter 31 = 25°C
3
42