41
IN
P
U
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
2,7
2,
=
ON =
= 2,
=
ON = 2,95 V = 25°C
Application
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 off
With this configuration, the system will set a temperature based on the
received voltage of the 0 - 10 V inlet.
The 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.
The 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.
The 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
