Menu Outputs
24
Particularities of outputs 15, 16
Output 15, 16
= analogue outputs. These outputs provide a voltage between 0 and 10V for perfor-
mance control of modern burners (burner modulation). They can be controlled by a PID function
module, but also by other functions with an analogue value. The "scaling" offers the possibility of
adapting the arithmetic value to the control range of the downstream device.
If several functions act simultaneously on one analogue output, the higher value is output.
By activating the analogue output via a
digital command
(ON), a
dominating
output voltage be-
tween 0.00 and 10.00 V can be specified.
Output of the calculated value takes place either as a voltage (0-10 V) or as a PWM signal. In PWM
(pulse width modulation), a square wave signal is created with a voltage level of about 10 V and a
frequency of 2 kHz with a variable duty cycle (0 - 100%).
Examples for different scaling:
Correcting variable for PID function
: Mode 0-10 V, correcting variable 0 should correspond to 0 V,
correcting variable 100 should correspond to 10 V:
OUTPUT STATUS:
MODE: 0-10 V
SCALING:
0 : 0.00 V
100 : 10.00 V
The correcting value is imported without a decimal point
Outp. voltage digital
command: 10.00 V
Temperature value, e.g. of an analogue function:
Mode PWM, the temperature 0°C should corre-
spond to 0 %, 100°C should correspond to 100 %:
Output status:
MODE: PWM
SCALING:
0 : 0.0 %
1000 : 100.0 %
The temperature value is imported in 1/10°C
without
a decimal
point
Outp. voltage digital
command: 10.00 V
Burner performance
, e.g. from the functions DHW demand or maintenance: Mode 0-10V, a burner
performance of 0% should correspond to 0 V, 100% should correspond to 10 V:
Output status:
MODE: 0 - 10 V
SCALING:
0 : 0.00 V
100 : 10.00 V
The percentage value is imported without a decimal point
Outp. voltage digital
command: 10.00 V
