Xinje XP3-BD series, Руководство по оборудованию

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XP3-BD User Manual Page 28 of 30 MANUL008R2V1
1. Usage of Four Parameters: Proportion parameter (Kp), integral parameter (Ki), differential
parameter (Kd), control proportion band (Diff).
Parameter P is the proportion parameter.
Parameter I is the integral parameter, mainly used to remove net difference.
Parameter D
is the differential parameter, mainly used to control signal’s change trend.
Temperature Control Band Means: in the assigned band, to carry out PID control, beyond the
band does not carry out PID control.
2.
Temperature Control Cycle: When carrying out PID adjustment, the output will carry on
heating according to the duty cycle got by PID output value, this period is called Temperature
Control Cycle
3 . Control Specialties: The band of the PID adjustment is: (QD-Diff QD + Diff), when the
temperature is lower than QD-Diff, controller goes on heating, when temperature is higher than
QD + Diff, the controller will stop heating.
The Control Curve of PID is Shown Below:
Each parameter’s reference value: Kp=20/100, Ki=5/20, Kd=200/500. DIFF=100~200
This reference value only for normal condition
，
according to the locale detail condition, each
reference value could be beyond the band.
4-6 Control specialities