This is a 3-term control trainer. By connecting this unit to Computer Applications Trainer Model DAS-1, complete PID control actions can be studied. The software has facility to set the process parameters namely, set-point (SP), Process variable (PV),
Control variable (CV). It is possible to set the Proportional (P), Integral (I), and Derivative (D), bands in the range of 0 to 100% and PID control can be accomplished. This unit has necessary hardware to change time constants of process dynamics under study. It is possible to change or create disturbance in the process, while the PID action is in progress. There is an additional facility to introduce disturbance in rate of change of process dynamics also, thereby simulating actual conditions of process dynamics. It is possible to observe the instantaneous values on-line of PV and CV status by using a DMM or a recorder or an Oscilloscope.
This PID trainer is an accessory to Computer Applications trainer Model DAS-1. This unit makes use of hardware of DAS-1 like ADC, DAC, current TX and RX as part of PID actions.
Specifications:
Time contestants : Independent R and C settings used
Disturbance : Step change is possible using momentary switch.
Rate disturbance : A continuously variable potentiometer is used
Observation post : Possible to monitor PV and CV
Note: This requires Computer Applications trainer Model DAS-1
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