Adjustable ramp up and down of the fan speed

During normal operation the fan speed changes from a lower speed to a higher or opposite according to the fan speed command FSC. The speed changes are always ramped up and down in percents per minute and defined by parameters FSC-01 and FSC-02 and limited to the minimum and maximum speed defined by parameter FSC-ß3 and FSC-04 as shown in the next figure.



Description

Default value

FSC-01: control signal increase per minute

25 %

FSC-02: control signal decrease per minute

25 %

FSC-03: minimum fan speed control

30 %

FSC-04: maximum fan speed control

100 %