NRT405F901 manual
Chapter 14
Display handling
30
Number of
parameter
Description
Factory
setting (FS)
17
Output signal for actuator connected to AO2:
0=0…10 V
1=2…10 V
2=10…2 V
3=10…0 V
0
18
Period time for heating actuator if thermal
actuators.
480 s
19
Period time for cooling actuator if thermal
actuators.
480 s
20
Run time for heating actuator with increase/decrease actuators.
120 s
21
Run time for cooling actuator with increase/decrease actuators.
120 s
22
Time (in hours) between exercise of heating actuator.
23
23
Time (in hours) between exercise of cooling actuator.
23
24
Setpoint or actual value shown in display:
0=Actual, setpoint when changing setpoint value
1=Actual, setpoint adjustment when changing setpoint value
2=Setpoint
3=Only setpoint adjustment
2
25
Configuration of fan control:
0=No control
1=The fan is controlled by the heating requirement
2=The fan is controlled by the cooling requirement
3=The fan is controlled by both the heating and cooling requirement
When using an electric heater this parameter should only be set to 1 or 3,
otherwise there is a risk of overheating.
3
26
Start signal in % for controller output, heating or cooling, for fan speed
1.
20 (5 when
using electric
heater)
27
Start signal in % for controller output, heating or cooling, for fan speed
2.
60
28
Start signal in % for controller output, heating or cooling, for fan speed
3.
100
29
Hysteresis for start/stop of fans in % of controller output.
5
30
Number of fan speeds.
3
31
Fan speed in Auto mode:
0=Fan speed follows cooling/heating output
1=Fan speed is limited to the lowest speed setting
0
32
Temperature compensation on AI1.
0 K
33
Temperature compensation for internal room sensor.
0 K
34
Maximum permitted upward setpoint offset. Settable value=0...13 K.
3 K
35
Maximum permitted downward setpoint offset. Settable value=0...17 K. 3 K
36
NO/NC* digital input 1:
0=NO
1=NC
1
37
NO/NC* universal input 1:
0=NO
1=NC
0
38
NO/NC* digital output 4:
0=NO
1=NC
1
39
NO/NC* digital output 5:
0=NO
1=NC
1
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