8 / 12
Siemens CE1N3547en_c
Building Technologies 2018-10-10
Group Objects Description
1 Fault information If group object #3 ”fault transmission” is set to “on”, the following faults can be transmitted if they
occur. In that case, group object #2 value changes to “alarm”.
Error Group obj. #1 Description Resolution
Device jammed 03 00 0A 03 0C 05 Target position can’t be
reached due to blockage.
Remove blockage (visual
inspection required) or
invert Opening direction,
if it is set wrongly
Or switch on adaptive
positioning, if mechanical
limits are intended.
Backup mode
entered
00 01 01 02 0C 05 Actuator is in backup mode
(cf. respective parameter
setting)
Actuator leaves Backup
mode when receiving a
setpoint.
Pressure sensor
tubes inverted
00 01 0A 01 0C 05 Pressure sensor measures
the lower pressure on the
input marked with “+”.
Correct the tubes
connection
Pressure sensor
malfunction
00 01 0A 01 0C 05 Malfunction of internal
communication to dp sensor
(200 ms timeout)
1) Check tubes
connection, or
2) reboot device, or
3) replace device
Operating hours
notification
00 01 0A 04 0C 05 Appears after a cumulated
motor running time of 365
days
Check device status and
control loop sensitivity
2 Fault state Indicates whether the actuator is in fault state. If yes, read out group object #1.
3 Fault transmission Enabling/ disabling the fault transmission. Fault transmission is disabled by default; therefore no
faults are transmitted from the actuator over the KNX bus.
4 Setpoint Setpoint 0…100% for volume flow or position, depending on the operating mode.
5 Damper position Relative damper position 0…100%. An opening range less than 0…90° can be normalized to
0...100% if adaptive positioning is set to “on”.
6 Volume flow relative Volume flow relative to the settings of Vnom, Vmin, and Vmax.
7 Volume flow absolute Volume flow in m
/h or m
/s depending on the selected data type.
8 Fault Same function as group object #2 (available for compatibility reasons).
9 Overridden Indicates whether the VAV controller is in override control either by a programming tool connected to
the HMI or by objects #10 / #11.
10 Override position 1 When the object is triggered, the actuator drives to the override position 1 defined by the respective
ETS parameter.
11 Override position 2 When the object is triggered, the actuator drives to the override position 2 defined by the respective
ETS parameter.
12 Balancing mode When the object is triggered, the actuator drives to Vmax for air balancing purposes.
13 Vmin Minimum air volume flow relative to Vnom.
14 Vmax Maximum air volume flow relative to Vnom.
15 Vnom Nominal air volume flow (absolute).
16 Opening direction Opening direction of the air damper.
17 Diff. pressure Actual value of the differential pressure over the VAV box measuring cross.
18 Coefficient VAV box characteristic value to map a nominal differential pressure to the corresponding nominal
volume flow.
19 OEM-Reset Resets all parameters to the value specified by the OEM.
