Basic Documentation

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Siemens VAV compact controller KNX/PL-Link G..B181.1E/KN CE1P3547en
Smart Infrastructure 2021-10-25
5 Parameterization and operating modes
5.1 Settings and user interaction
5.1.1 Device parameters
The OEM generally provides the basic configuration to VAV Compact Controllers,
esp. the parameter V
n
. The basic configuration is independent of the system
environment where the VAV Compact Controllers are to be used.
For parameter setting, configuration and maintenance tools as described in section
0 are available. Depending on the networking environment (PL-Link, KNX LTE or
KNX S-Mode), further settings are available (cf. chapter 9).
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 = mapping 0°...90° → 0…100 %
On = 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
1.00…3.16
Characteristic value for the air volume flow; set by
the manufacturer (OEM)
1.00
Altitude
0…5000m
in 500m steps
Altitude level correction factor for differential
pressure sensor (select n*500m value closest to
real altitude)
500 meters
1)
Adaptive positioning must not be activated while the actuator is mechanically jammed
2)
Value used for displaying / not used for volume flow control loop
VAV Compact Controllers operate in VAV mode when connected to the specified
power supply. The setpoint signal determines the operating range
min
V

…
max
V

.
1 Setpoint
2 Actual value
3 Control range
The VAV Compact Controllers can be operated in CAV mode by setting the
setpoint value accordingly, i.e. setting the supervisory controller to send a constant
setpoint.
VAV Compact Controllers can also be operated as damper actuators, i.e. the
0...100% setpoint is interpreted as position setpoint, cf. section 2.6.
Vmax [%]Vmin [%]
3
Parameterization
Variable air volume
control (VAV)
Constant air volume
control (CAV)
Position control