Temperature Controller - Staveb AG

Configuration and Basic Operation 3-173-Position ControlIn heating and cooling control, a dead band (an area where both controloutputs are 0) can be configured for either the heating or cooling side of theset point. So, 3-position control is made possible.Figure 3.25 Reverse Operation with 3-Position ControlDead bandHysteresis (OUT1)Hysteresis (OUT2)ONOFFHeatingsideCoolingsidePVSet pointTable 3.C Control ParametersSymbol Parameter Name: Function Group Descriptions-hcStandard/Heating and Cooling: Initial Settingfunction groupFor specifying control methodcntl PID/ON/OFF: Initial Setting function group For specifying control methodorevDirect/Reverse Operation: Initial Settingfunction groupFor specifying control methodc-db Dead Band: Adjustment function group Heating and cooling controlc-scCooling Coefficient: Adjustment functiongroupHeating and cooling controlhys Hysteresis (OUT1): Adjustment function group ON/OFF controlchys Hysteresis (OUT2): Adjustment function group ON/OFF controlON/OFF Control SetupTo execute ON/OFF control, configure the Set Point, PID/ON/OFF andHysteresis parameters.Example Operation Procedure — Setting the PID/ON/OFF ParameterIn this example, first check that the PID/ON/OFF parameter is set to onofin the Initial Setting function group.Publication 900-UM003C-EN-E - January 2004