
Technical
Manual
Room
Temperature
Controller
SCN
‐
RT1
MDT technologies GmbH •
51766 Engelskirchen • Papiermühle 1
Tel.: +49-2263-880 • Fax: +49-2263-4588 • [email protected] • www.mdt.de
2
1
Content
1
Content
.................................................................................................................................................
2
2
Overview
...............................................................................................................................................
4
2.1
Overview
devices
...........................................................................................................................
4
2.2
Usage
&
Areas
of
use
.....................................................................................................................
4
2.3
Exemplary
circuit
diagram
.............................................................................................................
5
2.4
Structure
&
Handling
.....................................................................................................................
5
2.5
Functions
.......................................................................................................................................
6
2.5.1
Overview
functions
.................................................................................................................
7
2.6
Settings
at
the
ETS
‐
Software
.........................................................................................................
8
2.7
Starting
up
.....................................................................................................................................
8
3
Communication
objects
........................................................................................................................
9
3.1
Default
settings
of
the
communication
objects
............................................................................
9
4
Reference
ETS
‐
Parameter
..................................................................................................................
11
4.1
General
Settings
..........................................................................................................................
11
4.1.1
Room
Temperature
Controller
with
setwheel
.....................................................................
12
4.1.2
Room
Temperature
Controller
with
display
.........................................................................
12
4.2
Temperature
measurement
........................................................................................................
14
4.3
Alarm/Messages
..........................................................................................................................
16
4.4
Controller
general........................................................................................................................
18
4.4.1
Controller
type
.....................................................................................................................
18
4.4.2
Operating
modes
&
Setpoints
..............................................................................................
19
4.4.3
Setpoint
offset
......................................................................................................................
25
4.4.4
Blocking
objects
....................................................................................................................
27
4.4.5
Heating/Cooling
request
objects
..........................................................................................
28
4.4.6
Guiding
.................................................................................................................................
29
4.4.7
Dead
zone
.............................................................................................................................
31
4.5
Controller
settings
.......................................................................................................................
33
4.5.1
Control
value
........................................................................................................................
33
4.5.2
PI
control
continuous
...........................................................................................................
34
4.5.3
PI
control
switching
(PWM)
..................................................................................................
37
4.5.4
2
‐
step
control
(switching).....................................................................................................
39
4.5.5
Direction
ofcontroller
...........................................................................................................
41
4.5.6
Additional
level
.....................................................................................................................
41
4.5.7
Additional
settings
for
heating
and
cooling
.........................................................................
44