Siemens AST10 Mode D'emploi page 13

GLB/GDB/ASV181.1E's
internal memory
Section 1
Vn
(Set Values)
Vmin
Set by AST10,
Vmax
ACS931 or
TYP
ACS941
DIR
Values
copied
Vn
Section 2
Vmin
(Reference Values)
Vmax
Set by ACS931
TYP
DIR
Calculation chart differential pressure (dP) to factor Vn
dPnom [Pa] Factor Vn
300 1.00
290
1.02
280 1.04
270 1.05
260 1.07
250 1.10
240 1.12
230 1.11
220 1.17
210 1.20
200 1.22
190 1.26
180 1.29
170 1.33
Example: Differential pressure dP is 180 Pa at the nominal air volume flow Vn.
Vn has to be set to 1.29 (to get a 10 V output signal at Vn).
Siemens Building Technologies 74 319 0396 0 c
By pressing the "Factory settings"
button, the reference values from
section 2 are copied to the section 1
("Set Values") and become active for
operation.
The copy procedure takes around 15
seconds.
dPnom [Pa] Factor Vn
160 1.37
150 1.41
140 1.46
130 1.52
120 1.58
110 1.65
100 1.73
90 1.83
80 1.94
70 2.07
60 2.24
50 2.45
46 2.55
AST10 B5851 22.11.2011
en
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