Siemens RVW26.000B27 Basic Documentation page 47

Programming level 4
Display
Interpretation
Siemens Building Technologies
HVAC Products
Functions
4 S e t
9 D i s t
A u x 2 D i
H y s t
Parameter Meaning
SetPts
Number of breakpoints per curve
Settings:
Factory setting:
Parameter «SetPts» is used to select whether 5, 9 or 17 breakpoints shall be pro-
grammed.
«SetLoad» (programming level 5) is then used to approach the individual curve-
points.
The positions of the auxiliary actuators can now be adjusted for every curvepoint.
If the RVW26... is switched from programming mode to operating mode, pa-
rameter «SetPts» automatically changes to 9.
Each time a curvepoint is changed with setting 5 or 9, the intermediate values will
be calculated by the RVW26...
Disturb
Impact of the correcting variable (refe to chapter «Application of a correcting vari-
able»)
Setting range:
Increment:
Factory setting:
Aux2Dis
Impact of correcting variable on auxiliary actuator 2
Parameter «Aux2Dis» must be set to «on» only if the auxiliay actuator acts on the
main airflow.
This is the case with an additional air damper or an adjustable head.
The impact on the auxiliary actuator poosition is that described in chapter «Appli-
cation of a correcting variable».
Settings:
Factory setting:
Hyster
Extent of compensation of hysteresis
Setting range:
Increment:
Factory setting:
Electronic Air / Fuel Ratio Control System
15 Programming the RVW26...
P t s
u r b
s
e r
5 / 9 / 17
9
0...50 %
1
0
on / off
off
0.00...0.50 V
0.1 V
0
:
: 1 5
: o f
: 0 . 2 0
CC1P7873.1en
15.10.2002
9
f
47/69