sauter NRT405F901 - Wiring of Various Actuators

NRT405F901 manual Chapter 6 Installation 16
Wiring of various actuators
When wiring thermal actuators, DO4 is used for heating and DO5 for cooling actuators. If
the change-over function is used together with a 2-pipe installation, the actuator should be
connected to DO4 if an electric heater is not used. If an electric heater is used, the change-
over function is instead located on DO5. When wiring 3-position actuators, DO4 is used for
the increase signal and DO5 for the decrease signal, including when the change-over
function is used.
Terminal Designation Description Function
10 L 230 V AC Line Supply voltage
11
NC
Not connected
12 N 230 V AC Neutral
Power supply (internally connected
to terminal 13)
13 N Fan-coil common / 230 V
AC Neutral
Common fan-coil connector
(internally connected to terminal
12)
20 DO1 Fan-coil output 1 for fan
control
Relay, 230 V AC, 3 A
21 DO2 Fan-coil output 2 for fan
control
Relay, 230 V AC, 3 A
22 DO3 Fan-coil output 3 for fan
control
Relay, 230 V AC, 3 A
30 NC Not connected
31 DO4 Digital output 4 for
heating/cooling or opening
with 3-point actuator
Digital output, 230 V AC, max 300
mA. Max 2 A during 20 ms.
32 CDO45 Common DO4 & 5 Common connection for digital
outputs 4 and 5
33 DO5 Digital output 5 for
cooling or closing with 3-
point actuator
Heating/cooling signal
when electric heater is
configured.
Digital output, 230 V AC, max 300
mA. Max 2 A during 20 ms.
40 DI Digital input Floating (potential-free) window
contact or occupancy contact.
Configurable for NO/NC.
41 AGnd Analogue ground
42 AI Analogue input External PT1000 instead of the
internal NTC
43 UI Universal input Change-over input. Floating
(potential-free) switch
(configurable for NO/NC) or
PT1000.
44
AGnd
Analogue ground
50
AGnd
Analogue ground
51
NC
Not connected
52 NC Not connected
53 A RS485 communication A NRT405F901
54 B RS485 communication B NRT405F901