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System information
This device is a product of the instabus-KNX
system and complies with KNX directives.
Detailed technical knowledge obtained in instabus
training courses is a prerequisite to proper
understanding.
The functionality of this device depends upon the
software.
Detailed information on loadable software and
attainable functionality as well as the software itself
can be obtained from the manufacturer's product
database.
Planning, installation and commissioning of the unit
is effected by means of KNX-certifi ed software.
ETS : database and description available from the
manufacturer.
Function
The analog actuator has 4 analog outputs and
converts
KNX-telegrams
(1-byte
telegrams) into analog output signals.
• With these analog output signals, actuators
used for heating, ventilation and air conditioning
purposes are enabled to adapt their output
variables in acc. with informations received from
the bus and to be used within control processes.
• The outputs are software-parameterized for
voltage or current signals.
Voltage outputs : 0...1 V
Current outputs : 0...20 mA
• Voltage outputs are monitored for short-circuits.
• The output state is indicated by the status LED.
• With the 4-channel analog actuator module, order
no. TYF684E, the number of analog outputs can
be increased by 4 outputs to 8 outputs. The device
is connected by means of a system connector.
• The output variables can be subject fo forced
control.
• Non used outputs can be deactivated.
Installation
The device is snap-fastened on a DIN rail 35 x 7,5
mm as per EN 50022.
G
The device can only be connected to an
analog actuator module by means of a 6-pole
system connector (supplied with the analog
actuator module).
The KNX analog actuator needs an external 24 V
power supply for operation.
This unit can also supply a connected analog
actuator module or other devices.
For easy connection, there are two pairs of internally
connected power supply terminals (marked by a
dot "•").
3
Connectable analog actuators
Safety warnings
q
• Do not connect electronic ballasts or
electronic transformers with 1-10 V
control input to the outputs.
• Do not connect external voltages to the
outputs. Connected components must
ensure safe separation from other
voltages.
• The GND terminals must not be
connected with the terminals of the
same designation of an of an analog
actuator module (risk of irreparable
damage!).
• Current outputs may be loaded with 500 Ω max.
• Voltage outputs must be loaded with 1 kΩ min.
and
2-byte
• The GND terminals of outputs A1...A4 are
internally connected.
• In the event of a short-circuit between a voltage
output A1 ... A4 and GND, the respective output
is deactivated.
Wiring diagram
0...10 V
4...20 mA
30V DC
Bus
230 V v
50/60 Hz
Connection
GND
: reference potential for outputs A1 ... A4
A1 ... A4 : analog outputs
KNX
: KNX connecting terminal
24 V AC : external supply voltage
A : devices with analog interface
B : status LED, tri-coloured (red, orange, green)
C : status LEDs of the four analog outputs (yellow)
D : programming LED
E : programming button
F : system connector, 6-pole for connection of an
analog actuator modul
U/I
U/I
U/I
U/I
GND
A1
GND
A2
GND
A3
GND
A4
TYF684
A1...A4 :
DC 0-10 V
M
0(4)-20 mA
Status A1 A2 A3 A4
24 V v
24 V v
Installation of an analog actuator
module
During the installation of an analog actuator module
the following basic rules must be observed:
• The device is designed for the connection of one
analog actuator module maximum.
• An extension module can be replaced by one of
the same type (e.g. in case of defect) while the
system is in operation (disconnect voltage supply
from module!). After the replacement, the analog
actuator makes a reset after abt. 25 s. This action
re-initializes all outputs of the analog actuator
and of the connected modules and resets them
to their original state.
• Removal or addition of modules without adapting
the project and subsequent downloading into the
analog actuator is not permitted as this will result
in system malfunctions.
Commissioning
After initial activation, the analog actuator performs
a module scan (status LED: "Orange / On").
As a new decive is not projected by default, the
status LED thereafter switches to "Red / Flashing
fast".
A connected analog actuator module signals its
ready-for-operation status by switching its status
LED to "Flashing fast".
After loading a project into the analog actuator
the status LED switches to "Green / On", and the
module switches its status LED off.
Status LED
Device status (tri-coloured red, orange, green)
OFF
no power supply
Orange/ON
module scan via analog
actuator
Orange/quickly
scan analog output actuator
blinking
module
Red/slowly
error: undervoltage at module
blinking
connection / short-circuit U s
Red/quickly
error: no project confi guration
blinking
/ false parameters
Green/slowly
address assignment, module
blinking
scan completed, confi guration
OK
Green/quickly
parameter download into
blinking
module
Green/ON
module
scan
everything OK
Slowly blinking = 1/s; quickly blinking = 2/s
Output signals A1 ... A4 (yellow)
LED off : output signal is equal to zero
LED on : output signal is greater than zero.
completed,
6T7658A
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