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Figure 2-28 EC fan control behaviour in manual mode (fan speed 1, 2, or 3).
2.5.2
3-speed fan control
The 3-speed fan control function is enabled and the 3-speed fan control configuration settings are shown in
Application tool when any of the configuration values listed in
are configured on a controller
output.
Figure 2-29 3-speed fan control configuration settings in Application tool.
The controller outputs 3 fan speed signals, Y1, Y2, and Y3, that are configured on the controller outputs by
using the values listed in
.
100%
0%
Time
80%
60%
40%
20%
Fan output (0-10 V)
Y1: Fan speed 1 signal =
Max speed setting * 0.33
Y1: Fan speed 2 signal =
Max speed setting * 0.67
Y1: Fan speed 3 signal =
Max speed setting * 1
Max speed: 90%
Speed 2
Manual fan speed
currently selected
Speed 1
Speed 3
Regio
Ardo
manual, Rev. D
33