3. Check that the pre-mounted partition between the 230 V and 24 V
terminals is securely attached.
4. Attach the terminal protection covers to the baseplate, and then
secure the covers using the pre-mounted Torx T20 screws.
Wiring
The following wiring diagram exemplifies controller connections usage,
and the following table describes the controller connections and their
applicability.
C
Caauuttiioonn!! Ensure that the cabling is securely attached to the baseplate,
and that the 230 V cabling is separated from the extra-low voltage (ELV)
cabling.
Terminal №
and
designator
Type
Description
1 L
Supply voltage
230 V AC supply voltage
2 N
Supply voltage
(neutral)
230 V AC supply voltage (neutral).
10 N1
12 N2
20 N3-5
Neutral
Digital output neutral.
Terminal №
and
designator
Type
Description
11 DO1d
13 DO2d
Digital output
Triac output used for valve, blinds, or lighting
control, or for alarms or forced ventilation.
21 DO3c
22 DO4c
23 DO5c
Digital output
Relay output used for 3-speed fan control.
30 N
31 A
32 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.
40 N
41 A
42 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.
Ext. Disp.
External display
communication
port
4P4C modular connector used for communica-
tion with an ED-RU-... room unit.
Ethernet commu-
nication port
8P8C modular connector used for Ethernet -
TCP/IP communication.
50 AGND
52 AGND
54 AGND
70 AGND
72 AGND
74 AGND
76 AGND
Analog ground
Signal ground for analog inputs and outputs.
51 AI1c
Analog input
Input used for change-over detection or for
temperature sensor.
53 AI2b
55 AI3b
Analog input
Input used for CO
2
, condensation, or relative
humidity sensor.
56 POa
Power output
24 V DC voltage output used for powering a
CO
2
or condensation sensor.
60 GND
62 GND
64 GND
66 GND
Digital ground
Signal ground for digital inputs.
61 DI1b
63 DI2b
65 DI3b
Digital input
Input used for presence, open window, or
change-over detection.
67 CI1a
Condensation
input
Input dedicated for Regin’s condensation de-
tector KG-A/1.
71 AO1a
73 AO2a
75 AO3a
77 AO4a
Analog output
Output used for valve, damper, or EC fan
control.
N | -
L | +
1
2
+24 V DC | POa 56
230 V AC
DO5c
DO4c
DO3c
N3-5
DO2d
N2
DO1d
10 N1
11
12
13
20
21
22
23
AO4a
AGND
AO3a
AGND
AO2a
AGND
77
76
75
AO1a
AGND
74
73
72
71
70
DI3b
GND
DI2b
GND
DI1b
GND
GND
CI1a 67
66
65
64
63
62
61
60
AGND
AI1c
AGND
AI2b
AGND
AI3b 55
54
53
52
51
50
Ext.
Disp.
Eedo
230 V AC
Ethernet
A
(COM-)
B
(COM+)
N
40
41
42
{
P2
A
(COM-)
B
(COM+)
N
30
31
32
{
P1
M
I
III
II
°C
PT1000
KG-A/1
GND
0...10 V
N
L
G0
0...10 V
G
CTRTA
Regio
Eedo
2
