4.17.2 18-9* PID Readouts18-90 Process PID ErrorRange: Function:0 %* [-200 - 200 %] Give the present error value used by theprocess PID controller.18-91 Process PID OutputRange: Function:0 %* [-200 - 200 %] Give the present raw output value fromthe process PID controller.18-92 Process PID Clamped OutputRange: Function:0 %* [-200 - 200 %] Give the present output value from theprocess PID controller after the clamplimits have been observed.18-93 Process PID Gain Scaled OutputRange: Function:0 %* [-200 -200 %]Give the present output value from theprocess PID controller after the clamplimits have been observed, and theresulting value has been gain scaled.4.18 Parameters: 21-** Ext. Closed Loop4.18.1 21-0* Ext. CL Autotuning21-09 Extended PID EnableSelect the extended CL PID controller that is to be autotuned.Option: Function:[0] * Disabled[1] Enabled Ext CL1 PID4.18.2 21-1* Ext. Closed-loop Reference/feedback21-11 Ext. 1 Minimum ReferenceRange: Function:0 ExtPID1Unit* [ -999999.999 -999999.999ExtPID1Unit]This parameter sets theminimum value that can beobtained by the sum of thesetpoint and reference.21-12 Ext. 1 Maximum ReferenceRange: Function:100ExtPID1Unit[ -999999.999 -999999.999ExtPID1Unit]This parameter sets themaximum value that canbe obtained by the sum ofthe setpoint and reference.21-13 Ext. 1 Reference SourceThis parameter defines which input on the frequency convertershould be treated as the source of the reference signal.Option: Function:[0] * No function[1] Analog Input 53[2] Analog Input 54[7] Frequency input 29[8] Frequency input 3321-14 Ext. 1 Feedback SourceThis parameter defines which input on the frequency convertershould be treated as the source of the feedback signal.Option: Function:[0] * No function[1] Analog Input 53[2] Analog Input 54[3] Frequency input 29[4] Frequency input 3321-15 Ext. 1 SetpointRange: Function:0 ExtPID1Unit* [-999999.999 -999999.999ExtPID1Unit]This parameter is used as thereference for comparingfeedback values. The setpointcan be offset with digital,analog, or bus references.21-17 Ext. 1 Reference [Unit]Range: Function:0 ExtPID1Unit* [-999999.999 -999999.999 ExtPID1Unit]Return the resultingreference value.21-18 Ext. 1 Feedback [Unit]Range: Function:0 ExtPID1Unit* [-999999.999 -999999.999 ExtPID1Unit]Return the feedbackvalue.21-19 Ext. 1 Output [%]Range: Function:0 %* [0 - 100 %] Return the extended closed loop 1 PIDcontroller output value.21-20 Ext. 1 Normal/Inverse ControlSelect [0] Normal if the controller output should be reducedwhen the feedback is higher than the reference. Select [1] Inverseif the output should be increased when the feedback is higherthan the reference.Option: Function:[0] * Normal[1] InverseParameter Descriptions Programming GuideMG06C702 Danfoss A/S © 06/2017 All rights reserved. 1134 4