Fan speed control

Automatic mode

The variable fan speed control from 0% to 100% can be adjusted between minimum and maximum limits as defined by parameters FSC-03 and FSC-04. In a typical sequencing application the module will receive a fan speed command signal from the control strategy macro.


Manual mode

The input "EffManSwCmd_MSt" has a higher priority than the input "FanSpeedControl". With this input can be made between two Fixed speeds which are defined with the parameters FSC-03 and FSC-04.

The following table shows the described functions.


EffManSwCmd_MSt

FanCmd

FanSpeedControl

NextFanEnable

1

0

0

0

2

1

value FSC-03

1

3

1

value FSC-04

1

4/ 5

automatic

automatic

automatic


Description

Default value

FSC-03: minimum fan speed control

30 %

FSC-04: maximum fan speed control

100 %