Fan speed control ramped up after start-up
On initial start-up, after the fan enable signal "FanEnableSig" becomes true (=1), the fan speed command output signal "FanSpeedCtrl" of the SPA_StatPressControl module will be only once ramped-up in percentage per minute, as defined by parameter FSC-01, from zero to the desired controlled level, as shown in the next figure.
Description |
Default value |
FSC-01: output signal increase per minute |
25 % |
Note: The lowest internal control signal of the “SPA_StatPressControl”, the “High limit duct static pressure control” and the “Flow balance control” will be omitted to the FSC output of the module.
This output is normally connected to the input of the variable fan speed module.