Basic Documentation

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Siemens VAV compact controller KNX/PL-Link G..B181.1E/KN CE1P3547en
Smart Infrastructure 2021-10-252021-10-25
9.2 Engineering tool parameters
9.2.1 ETS Parameters
Parameter
Range
Description
Factory
settings
Tab card “standard”
Operating mode
VAV / POS
VAV: setpoint = volume flow 0…100%
POS: setpoint = damper position 0…100%
VAV
Adaptive positioning
On / Off
Adaption of actual (if mech. limited) opening
range to position feedback 0...100%
Off = No adaptation / On = Pos. adaptation
Off
Altitude /
Elevation asl.
0…5000m
in 500m steps
Correction factor for diff. pressure sensor
(select n*500m value closest to local
altitude)
500 m
Backup timeout
0..60 min
0 min = disabled
Time interval to detect communication
interruption. If disabled, the actuator drives
to the last received setpoint until a new
setpoint is received.
30 min.
Backup mode
Backup position
Keep last position
Actuator behavior when the communication
timeout has been exceeded (no setpoint
received within the defined time interval).
▪ Backup position: Actuator drives to
defined position
▪ Keep last position: Actuator keeps
position without flow control
Backup
position
Backup position
0…100%
Position the damper drives to in case of
communication interruption
50%
Tab card “advanced”
Hysteresis (COV)
1)
volume flow
1...20%
Threshold for the relative volume flow.
COV below this value are not sent over the
bus.
1%
Min. repetition time
volume flow
10...900 s
Minimum waiting time until a COV above the
hysteresis threshold is sent over the bus
10 s
Hysteresis (COV)
damper position
1...20%
Threshold for the damper position. COV
below this value are not sent over the bus
1%
Min. repetition time
damper position
10...900 s
Minimum waiting time until a COV above the
hysteresis threshold is sent over the bus
10 s
Override position 1
2)
0...100%
Damper position which can be triggered by
the corresponding group object
0%
Override position 2
2)
0…100%
Damper position which can be triggered by
the corresponding group object
100%
Write Vnom
On / Off
If active, the group object for Vnom is
writable (OEM parameter protection
applies), otherwise it is read-only.
Off
Write Opening
Direction
On / Off
If active, the group object for the opening
direction is writable (OEM parameter
protection applies), otherwise it is read-only.
Off
1)
Adaptive positioning must not be activated while the actuator is mechanically jammed
2)
Override position 1 has priority over Override position 2
9.2.2 Additional ACS790 Parameters
Parameter
Range
Description
Factory
settings
Type of air
Outside air, Primary
supply air, Supply air,
Extract air
Type of air according to
EN13779:2007
Outside air
Master/Slave
Autonomous, Master,
Slave
Output signal of the supply air VAV
controller is the reference signal for
the extract air VAV controller.
Autonomous