3. Attach the terminal protection covers to the baseplate, and then
secure the covers using the pre-mounted Torx T20 screws.
Wiring
C
Caauuttiioonn!! Ensure that the cabling is securely attached to the baseplate.
The following wiring diagram exemplifies controller connections usage,
and the following table describes the controller connections and their
applicability.
Terminal №
and
designator
Type
Description
1 G
Supply voltage
24 V AC supply voltage.
2 G0
Supply voltage
(reference)
24 V AC supply voltage (reference).
Ground
Earth ground.
Terminal №
and
designator
Type
Description
10 GDO
14 GDO
Supply voltage
output
24 V AC supply voltage output for use together
with digital outputs.
11 DO1b
12 DO2b
13 DO3b
15 DO4b
16 DO5b
17 DO6b
Digital output
Mosfet output used for valve, 3-speed fan,
blinds, or lighting control, or for alarms or
forced ventilation.
20 Agnd
23 Agnd
30 Agnd
45 Agnd
Analog ground
Signal ground for analog inputs and outputs.
21 AI1a
22 AI2a
24 AI3a
25 AI4a
Analog input
Input used for change-over detection or for
temperature, CO
2
, condensation, or relative
humidity sensor.
31 CI1a
32 CI2a
Condensation
input
Input dedicated for Regin’s condensation de-
tector KG-A/1.
Ethernet commu-
nication port
8P8C modular connector used for Ethernet -
TCP/IP communication.
40 AO1a
41 AO2a
42 AO3a
43 AO4a
Analog output
Output used for valve, damper, or EC fan
control.
50 GND
53 GND
Digital ground
Signal ground for digital inputs.
51 DI1b
52 DI2b
54 DI3b
55 DI4b
Digital input
Input used for presence, open window, or
change-over detection.
Ext. Disp.
External display
communication
port
4P4C modular connector used for communica-
tion with an ED-RU-... room unit.
60 E
61 N
62 A
63 B
RS485 communi-
cation port
RS485 connector used for communication via
BACnet, or for master/slave communication via
Exoline or Modbus.
This connection is not galvanically isolated.
70 E
71 N
72 A
73 B
RS485 communi-
cation port
RS485 connector used for communication via
BACnet, or for master/slave communication via
Exoline or Modbus.
This connection is galvanically isolated.
Ardo
G0 | -
1
2
G | +
3
24 V AC
DO6b
DO5b
DO4b
GDO
DO3b
DO2b
DO1b
10 GDO
11
12
13
14
15
16
17
Agnd
AO4a
AO3a
AO2a
AO1a
45
43
42
41
40
DI4b
DI3b
GND
DI2b
DI1b
GND
55
54
53
52
51
50
AI4a
AI3a
Agnd
AI2a
AI1a
20 Agnd
21
22
23
24
25
CI2a
CI1a
30 Agnd
31
32
Ext.
Disp.
Ethernet
(COM-)
A
(COM+)
B
N
63
62
61
{
P2
E 60
(COM-)
A
(COM+)
B
N
73
72
71
P1
E 70
{
Room unit
EDSP-K3
°C
PT1000
KG-A/1
GND
0...10 V
N
L
G0
0...10 V
G
CTRTA
Regio
Ardo
2