Emergency Control (Lte-Mode Only); Application With Vav Compact Controller (Knx Lte-Mode Only) - Siemens KNX RDG400KN Basic Documentation
Room thermostats with communications
Hide thumbs
Also See for KNX RDG400KN:
- Basic documentation (87 pages) ,
- Manual (14 pages) ,
- Operating instructions (2 pages)
Table of Contents
Advertisement
Priority of alarms
K N X
R
Fault transmission
Example
60 / 86
Siemens
Smart Infrastructure
· Priority order is #1...5
· External faults #4...5: If faults are active, the display shows AL1, AL3
alternating. On the bus, only the fault with the highest priority is sent
A supervisor alarm system may command the thermostat to stop sending faults to
the bus via the communication object "Fault transmission" (disable/enable).
This has no impact on the local display of faults.
After a timeout of 48 hours, sending of faults will automatically be enabled again.
3.10.12 Emergency control (LTE-Mode only)
In case of smoke or fire, the air damper can be overridden via KNX.
The necessary information is provided by function block "HVAC Emergency Mode".
The table below describes the behavior of the controller output:
#
Data point value
0
Normal
1
EmergPressure
2
EmergDepressure
3
EmergPurge
4
EmergShutdown
5
EmergFire
Emergency signals have the highest priority and command the control output
accordingly. Any ongoing function like fan-overrun, etc., is stopped immediately.
The priority is as follows:
1.
Smoke
2.
Fire
3.
Fan overrun
4.
Normal operation (Emergency 0 and operation by operating mode button)
3.10.13 Application with VAV compact controller
(KNX LTE-Mode only)
For applications with RDG.. and VAV compact controller (KNX LTE-Mode), the
information (control signal, current air damper position) is transmitted on the KNX
bus. The communication between the devices is established by setting the KNX
parameters in the thermostat and in the VAV compact controller.
KNX parameter
KNX address
Master/slave
Type of damper actuator
Geographical zone (apartment)
Geographical zone (room)
Air distribution zone
For information on applications with supply air and extract air, refer to section 3.4.1.
For details on KNX parameters in LTE-Mode, refer to section 3.10.3.
RDG400KN,RDG405KN Basic documentation
Air damper
Normal operation
Fully open
Fully closed
Fully open
Fully closed
Fully closed
(Emergency 1...4)
(Emergency 5)
(Emergency 0 and electric heater fan overrun function is
active)
RDG..
0.1.2
1
1
5
GDB..KN
GDB..KN
0.1.3
0.1.4
Master
Slave
Supply air
Extract air
1
1
1
1
5
5
CE1P3192en
2019-04-12
Advertisement
Table of Contents
