Data Sheet for Product

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A6V10631832_en--_f Siemens
2021-10-20 Smart Infrastructure
Commissioning and parameterization
Parameterization of the VAV application
The OEM generally provides the basic configuration to VAV Compact Controllers, especially
the parameter Vn and the opening direction. The setting of all other parameters depends on
the actual application and can be obtained from the ventilation planner or similar.
The following parameters must be checked or set prior to commissioning:
Parameter
Range
Description
Factory setting
Operating
mode
VAV (flow ctrl.) /
POS (position
ctrl.)
Interpretation of setpoint
VAV = setpoint controls volume flow [%]
POS = setpoint controls damper position [%]
VAV
Opening
direction
CW (R) / CCW (L)
Opening direction of air damper
CW (R)
Adaptive
positioning
Off / On
Adaption of actual opening range to position feedback
1)
Off = No adaption / mapping 0°..90° → 0..100 %
On = Pos. adaption / mapping e.g. 0°..60° → 0..100 %
Off
Vmax
20…120%
Maximum air volume flow
100 %
Vmin
-20…100%
Minimum air volume flow
0 %
Vnom
0…60‘000 m
3
/h
Nominal air volume flow
2)
100 m
3
/h
Vn
1…3.16
Characteristic value for the air volume flow; set by the
manufacturer (OEM)
1
Altitude
0…5000m
in 500m steps
Altitude level correction factor for differential pressure
sensor (select n*500m value closest to real altitude)
500 meters
Please refer to technical basics A6V10631862 for more explanation.
1)
Adaptation must not be activated while a device jam is present
2)
Value used for displaying / not used for volume flow control loop
Operating mode “Volume flow control”
Variable air volume (VAV) control
The operating point is determined by the setpoint value and the Vmin / Vmax settings.
1 Setpoint range
2 Actual value range
3 Controlled area
Constant air volume (VAV) control
A constant air volume flow can be achieved by sending a constant setpoint value or by set-
ting Vmin = Vmax.
Operating mode “Position control”
The VAV compact controllers can be operated as damper actuators, i.e. using the 0..100%
setpoint as position damper setpoint, by setting the operating mode parameter to “POS”.
Vmax [%]Vmin [%]
3