Siemens LMV50 Series Manual page 286

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Building Technologies
∂
Linear progression of O2 value between the curvepoints
The O2 value between the curvepoints should progress in a linear fashion. To
make checks, approach load positions between the curvepoints and check the O2
value. If the progression is not linear, additional curvepoints should be set and the
O2 progression should be appropriately corrected.
O (%)
2
Linear (good progression of O
6
5
4
O ratio control
2
3
2
1
Figure 124: Linear progression of O2 value between the curvepoints
Checking the transfer range between damper and VSD
∂
When using several air-regulating actuators (e.g. air damper or VSD), it should be
made certain that the curves are as smooth as possible. Irregularities should be
avoided.
90°
100%
Figure 125: Checking the transfer range between damper and VSD
____ good
------ poor
Basic Documentation LMV5...
19 O2 trim control with LMV52 and PLL52
)
2
Nonlinear (poor progression of O
Set additional curvepoints
Load (%)
100 %
VSD
Damper
Load (%)
)
2
CC1P7550en
22.05.2018