EN
INSTRUCTION
ED-RUD-2 ...
IN20055 REV. D, 2022-05-17
C
Caauuttiioonn!! Read and understand the instruction before using the product.
C
Caauuttiioonn!! Ensure that the installation complies with local safety
regulations.
C
Caauuttiioonn!! Before installation or maintenance, the power supply should first
be disconnected. Installation or maintenance of this unit should only be
carried out by qualified personnel. The manufacturer is not responsible
for any eventual damage or injury caused by inadequate skills during instal-
lation, or through removal of or deactivation of any security devices.
Function
ED-RUD-2 ... is a slim flush or wall mounted room unit with backlit
touch screen. It is easy to use and works together with any Modbus
master controller. It can be used as Plug'n Play with Regin's room
controllers Regio
Ardo
and Regio
Eedo
and is prepared for easy configuration
with Regin's ventilation controllers Corrigo
Ardo
and Corrigo
Vido
.It has a
built in NTC sensor for measuring temperature.
Technical Data
Supply voltage
24 V AC/DC (22…26 V AC/DC)
Power consumption
60 mA
Protection class
IP30
Ambient humidity
10…90 % RH (non-condensing)
Ambient temperature
0…50 °C
Storage temperature
-20…+70 °C
Temperature sensor
Built in NTC sensor
Measuring range, tem-
perature sensor
0…50 °C
Accuracy, temperature
sensor
± 0.5 °C
Resolution, temperature
sensor
± 0.5 °C
Cable connection
Terminal block, push-in. Max. 1.5 mm
2
(AWG 16)
Mounting
Room (flush-mounted with screw distance cc 60
mm)
Display
Built-in
Display type
LED-backlit LCD
Dimensions, external
(WxHxD)
95 x 95 x 23 mm
Serial port
1
Port type
RS485
Supported protocol
Modbus (RTU)
Communication speed
38400 bps (4800…38400 bps)
Parity
Even (Even, Odd, None)
Stop bit
1 (1 or 2)
Installation
The room unit is installed indoors on a back plate. ED-RUD-2 ...The
back plate is not included in the package and comes separately. There are
two different back plates available: one for flush mounting on an EU
standard wall mounting box (ED-RUD-2-FM) and one for mounting
directly on a wall (ED-RUD-2-WM).
The display should not be installed in direct sunlight or close to a heating
source.
The display is pre-configured for Plug'n Play use together with Regin 's
room controllers Regio
Ardo
and Regio
Eedo
.
For other controllers, the communication settings might need to be
changed in the
Firmware configuration menu
(see
).
If there are communication problems when using the display with
Corrigo
Ardo
and Corrigo
Vido
controllers, check the
Configuration
settings
for the Corrigo.
Wiring
Depending on the used controller there are two different wiring options:
–
Option 1
: The room unit is connected via a EDSP-K3 cable to the
controller's display port.
–
Option 2
: The room unit is connected to the controller's serial port.
The supply voltage is connected to the same supply voltage as the
controller (G and G0).
Terminal
EDSP-K... wire color
Description
+24 V
Black
Supply voltage, G
N
White
Supply voltage, G0
B
Brown
Serial communication port, Com B
A
Yellow
Serial communication port, Com A
Wiring according to option 1
Figure 1 Communication via EDSP-K… (1=Black, 2=White, 3=Brown, 4=Yellow)
Wiring according to option 2
Figure 2 Communication via the serial port
Handling
The display consists of segments and buttons that all can be controlled
individually via the Modbus master. Regardless if the display is
connected to a master controller or not it is always possible to configure
communication parameters in the display:
ED-RUD
+24 V
N
B
A
1
2
3
4
EDSP-K3
+ 24 V
N
B
A
ED-RUD
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