sauter RDT410 Manuel D'instructions page 2

Disconnection
The controller RDT410F301 shall be connected to a switch or circuit
breaker in the building installation. This switch shall be in close prox-
imity to the controller and within easy reach of the operator, and shall
be marked as the disconnecting device for the equipment.
6A
L
230 V~
N
L
N
19 COM
18 NO
NC
17
RDT410F301
Overcurrent protection
The controller RDT410F301 shall be protected by a fuse in the
building installation. The maximum load of the controller, 1000 VA,
suggests a 6 A fuse.
Follow table 1 below for connection.
Table 1. I/O connection terminals
Terminal Designation Operation
LS 24 V~
RDT410F201 only
MM
L 230 V~
RDT410F301 only
N
1 DI2 Digital input
2 DI+ Reference for DI1 and DI2
3 DI1 Digital input
4 UI+ Reference for UI1
5 UI1 Universal input Ni1000 or Digital
6 Reference for AI1
7 AI1 Ni1000 temp. sensor input
8 Reference for AI2
9 AI2 Ni1000 temp sensor input
10 SPI Input Ni1000 setpoint device
11 AO2 0...10 V= output
12 AO1 0...10 V= output
13 Reference for AO1 and AO2
14 DO2 Digital output
15 DO1 Digital output
16 LS Reference for DO1 and DO2
17 NC DO3
Relay
18 NO
230 V~,
19 COM
1000 VA
For best protection against disturbances, a shielded cable should be used
for wiring the sensors. Ground the shield at one end.
For the complete connection diagrams see installation instruction.
Control modes
RDT410 can be configured to any one of the following control modes:
1. Supply air temperature control
The supply air temperature is kept at the setpoint value by controlling
the output signals on AO1 and AO2. A single PI control loop is used.
Connect the sensor to AI1, even if only using a room sensor.
2. Supply air temperature control with outdoor compensation
The supply air temperature is kept at the setpoint value by control-
ling the output signals on AO1 and AO2. A single PI control loop is
used. The setpoint is automatically adjusted according to the outdoor
temperature.
3. Cascade connected supply air control with room / extract air
temperature influence
An offset in room temperature will adjust the supply air temperature
setpoint so as to eliminate the room temperature offset. Control
loops with PI-control are used. The supply air temperature is
minimum and maximum limited. A supply temperature sensor and a
room/extract air sensor must be utilised.
flexotron 400 - RDT410 - P100011654 C
®
4. Radiator circuit control with outdoor curve
The water temperature setpoint is changed according to the
outdoor temperature. A single PI control loop is used. A room
temperature sensor can be added to give corrective action if
the room temperature differs from the setpoint. Without a room
sensor, the setpoint is a parallel displacement of the curve.
When using a room sensor, the setpoint is a room setpoint. This
is automatically set when configuring control mode 4.
5. Domestic hot water control
The water temperature is kept constant by controlling the output
signal on AO1. A single PID control loop is used.
Control modes 1, 2 and 3
For control modes 1, 2 and 3, the analogue outputs can be configured
to the following combinations:
AO1 AO2 Display symbols
1 Heating -
\
2 Cooling -
/
3 Heating Cooling
\ /
4 Heating Heating
\ \
5 Cooling Cooling
/ /
6 Heating Damper
\ /
7 Cooling Damper
\ /
Note: For control modes 1, 2 and 3, the input for fan indication (DI1)
must be connected in order to start the control
alarm, AL3, will be generated. The input must "follow" the fan output,
i.e. if the output closes, the input must also close.
LS
Fan start
19 COM
MM
18 NO
17 NC
DI2 1
DI+ 2
DI1 3
Alarm
16 LS 4
UI+
15 DO1
UI1 5
14 DO2
0 6
Y1
13
+ AI1 7
12 AO1
8
MM
11 AO2 AI2 9
Y2
LS
SPI 10
Y
Figure 1. Wiring example: RDT410 with electric heating and damper. Cascade
control.
function, otherwise an
6A
L 230 V~
N
24 V~
Extended running
Fan indication
High temp limit switch
Supply air temp
Room / Extract
air temp
2