Rev. 1 - 05/10/2021
OPERATING MANUAL
OPERATING MANUAL
EN
EN
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The following figures show a set of performance curves at different speed settings limited by the fan max
working limit curve (see paragraph 1.6).
10.1.4 Speed control curves: example
10.2 Constant airflow
This operating mode is not available for RDPs. For further details, see the related warning in par. 17.3.
10.3 Asynchronous emulation
This operating mode is not available for RDPs. For further details, see the related note in par. 17.3.
0
200
400
600
800
1000
1200
1400
Static pressure [Pa]
0
1000 2000 3000 4000 5000 6000 7000 8000 9000 10000
Flow rate [m
3
/h]
54 55
58
62
66
64
66
68
71
71
72
75
72
73
74
76
77
77
78
80
7
6
5
4
3
2
1
0
1000
2000
3000
Speed [rpm]
0
1000 2000 3000 4000 5000 6000 7000 8000 9000 10000
Flow rate [m
3
/h]
7
6
5
4
3
2
1
(INPUT TYPE = 2)
Through this setting the fan runs at the speed defined by modifying the
Holding Register 21.
The setting is permanent and fan starts at the defined speed each time it is powered on.
10.1.3 Modbus fixed speed control
