Panasonic KT9 Instruction Manual

Also see for KT9: Instruction manual

Contents

Panasonic KT9 Instruction Manual Manual pdf 26 page image

26Direct/Reverse control action selection• Selects either Direct (Cooling) or Reverse (Heating)Reverse(Heating) actioncontrol action.• Selecting itemReverse (Heating): Direct (Cooling):AT bias setting 20• Sets the bias value for performing PID auto-tuning.• Not available for DC inputAvailable for PID action• Setting range: 0 to 50 (0 to 100 )With a decimal point，0.0 to 50.0 (0.0 to 100.0 )Setting item not usedWhen Serial communication (option) is applied, this item appears.However, do not set this item.SV2 indication selection Indication• Selects whether SV2 is indicated or not.• Selecting item(Indication) (No indication)Output status selection when input abnormal Output OFF• Selects the output status of OUT1 and OUT2 (option) when DC input isoverscale or underscale. See “Input abnormality indication” on pages 40, 41.• Available only for DC current output with DC input• : OFF(4mA) or OUT1(OUT2) low limit: Outputs a value between OFF(4mA) and ON(20mA) or betweenOUT1(OUT2) low limit value and OUT1(OUT2) high limit value,depending on a deviation.OUT/OFF key function selection• Selects the OUT/OFF key function.OUT/OFFfunction• Selecting item(OUT/OFF function), (Auto/Manual control function)ARW functionARW (Anti-reset windup) prevents overshoot caused by the integral action. The smallerthe ARW value, the less the overshoot caused by the integral action in the transitionstatus, however it takes time until stabilization.Sensor correction functionThis corrects the input value from the sensor. When a sensor cannot be set at alocation where control is desired, the sensor measuring temperature may deviate fromthe temperature in the controlled location. When controlling with plural controllers,the accuracy of sensors affects the control.Therefore, sometimes the measured temperatures (input value) do not concur. In such acase, the control can be set at the desired temperature by adjusting the input value ofsensors.SV1/SV2 external selectionSV1 or SV2 can be selected by the external operation.• Between terminals 14 and 17 open: SV1 can be selected.• Between terminals 14 and 17 closed: SV2 can be selected.• Set value memory number cannot be changed during setting mode or PID auto-tuning.