Fan speed control
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.
The input "ManSwCmd" 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.
ManSwCmd |
FanCmd |
FanSpeedControl |
NextFanEnable |
0 |
0 |
0 |
0 |
1 |
1 |
value FSC-03 |
1 |
2 |
1 |
value FSC-04 |
1 |
3/ 4/ 999 |
automatic |
automatic |
automatic |
Description |
Default value |
FSC-03: minimum fan speed control |
30 % |
FSC-04: maximum fan speed control |
100 % |