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SYSTEMS AND METHODS FOR TUNING A HOT MELT LIQUID DISPENSING SYSTEM CLOSED-LOOP CONTROLLER
SYSTEMS AND METHODS FOR TUNING A HOT MELT LIQUID DISPENSING SYSTEM CLOSED-LOOP CONTROLLER
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机译:用于调谐热熔液分配系统闭环控制器的系统和方法
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摘要
Systems and methods for tuning a closed-loop controller for a hot melt liquid dispensing system are disclosed. In an example method, based on a set temperature setpoint, the hot melt liquid dispensing system is maintained at a steady state with respect to a temperature process variable and a heater duty cycle control variable. The heater duty cycle control variable is brought to a sustained oscillation. An amplitude and an ultimate period are determined. An ultimate gain is determining based on the step value and the amplitude. A proportional, integral, or derivative constant is determined based the ultimate period and/or ultimate gain. The closed-loop controller is implemented using the proportional, integral, or derivative constant.
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