Modulating Operation; 2-Stage Operation - Siemens LMV37.4 Series Basic Documentation

Building Technologies

13.2 Modulating operation

Actual value Voltage
Off DC 0 V
Ignition load DC 1 V
Low-fire DC 2 V
High-fire DC 10 V
The values between low-fire and high-fire are interpolated in a linear manner.

13.3 2-stage operation

Actual value Voltage
Off DC 0 V
Stage 1 DC 5 V
Stage 2 DC 10 V
13.4 3-stage operation
Actual value Voltage
Off DC 0 V
Stage 1 DC 3 V
Stage 2 DC 5 V
Stage 3 DC 10 V
Basic documentation LMV37.4...
13 Load output X74 pin 3
Curvepoint Display / output
value
--- Off
P0 10%
P1 20%
P9 100%
Curvepoint Display / output
value
--- Off
P1 P1
P2 P2
Curvepoint Display / output
value
--- Off
P1 P1
P2 P2
P3 P3
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17.12.2018