Parameters Meaning8 Switching the refrigeration dryer on and offFactory setting: ON (Option T3)This parameter switches the dryer permanently on or off:■ OFF: refrigeration dryer off■ ON: refrigeration dryer onA password is required to change this parameter. In machines without a refrigerationdryer, the parameter is factory set to OFF.C System setpoint pressure: Switching differentialThe switching differential determines the distance between cut-in and cut-out pres‐sure (system setpoint pressure: switching point) and thus the switching frequencyfrom LOAD to IDLE.Setting range [bar]: −0,1 ... −5,0D System setpoint pressure: Switching pointThe switching point corresponds to the working pressure of the air system and thecut-out pressure of the machine.Setting range [bar]: 5.5 ... maximum operating overpressureE maximum possible setpoint pressure settingOnly KAESER Service has the right to change this parameter.F OptionsThe displayed value informs KAESER Service concerning the controller's internalmachine configuration.Tab. 44 ParametersFurther information Means of changing or adjusting parameters are given in chapter 8.3.4.10.3 MessagesAlarm messageAn alarm shuts the machine down automatically. The red LED 13 flashes (Fig. 8).Warning messageThe yellow LED lights 15 to indicate a warning (figure 8).4 Design and Function4.10 Functional description – SIGMA CONTROL BASIC36 Service Manual Screw CompressorASK T SIGMA CONTROL BASIC 9_5717 20 E
