<< Click to Display Table of Contents >> Optimizing I-Gain |
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I-Gain is responsible to reach the setpoint. If reaching setpoint is not important (e.g. setpoint is 0) leave the I-Gain at 0. Otherwise start with P-Gain set to half of the value found when optimizing P-Gain and set I-Gain to 0.1. Keep the P-Gain constant. Start again the pump down. Check how the pressure reaches the setpoint:
If the setpoint is reached too slowly increase I-Gain
If there is an undershoot increase I-Gain
Required information for support:
•Go to ‘Tools / Create Diagnostic File’ in ‘Control Performance Analyzer’ and save file
•Pressure / flow / gas conditions to be controlled
•Chamber volume
•Pumping speed (l/s) and pump type (e.g. turbo pump)
•System description
•Problem description
Send diagnostic file with and all required information to tuning-support@vat.ch