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PID Controllers provide powerful position and rate control over DC motors, Linear motors, and Solenoids - applications may include Throttle body and e-Wastegate controllers.
PID Block Configuration
The output pin setting selects the output pin that is to be used.
Inputs
|
Feedback |
PID Feedback input signal. Connect to an input pin, for example, ADIO1 State > Voltage, or a control parameter such as Math Block 1 > Result. Any PDM control parameter may be used. |
|
FB Value |
Monitor the feedback signal value - normalized from 0-100% |
|
Error Value |
Monitors PID target error value - from 0-100% |
|
Setpoint |
PID Setpoint input signal. Connect to an input pin, for example, ADIO1 State > Voltage, or a control parameter such as Math Block 1 > Result. Any PDM control parameter may be used. |
|
SP Value |
Monitors Setpoint signal error value- normalized from 0-100% |
Input Conditioning
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FB Fault High |
Signals a fault if the feedback input value exceeds 'FB Fault High' |
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FB Fault Low |
Signals a fault if the feedback input value exceeds 'FB Fault Low' |
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FB Cal High |
PID feedback (0-100%) is the ratio of 'FB value' as it falls between 'FP Cal High' (100%) and 'FP Cal Low' (0%) |
|
FB Cal Low |
PID feedback (0-100%) is the ratio of 'FB value' as it falls between 'FP Cal High' (100%) and 'FP Cal Low' (0%) |
|
SP Max Rate |
Maximal rate of change allowed on the setpoint input. If the setpoint input rises or falls at a greater rate than specified, then the rate of change is limited by the PID controller. This translates to the level of smoothing noted on the output PWM signal. |
|
SP Filter |
The degree of filtering applied on the setpoint input. |
PID Setup
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P, I, D |
Proportional, Derivative and Integral gain coefficients. |
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Feedforward |
Feed-forward gain value |
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Deadband |
Setpoint deadband. No PID response will be actioned while the change in setpoint is inside the deadband. |
PWM Setup
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Frequency |
Frequency of PID PWM output signal (Fixed) |
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Duty Max |
The maximum duty cycle of PID PWM output signal from 0-100% |
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Duty Min |
The minimum duty cycle of PID PWM output signal from 0-100% |