bgtorque
Member
Hey all!
I am using a PIDE (and indeed an FBD logic) for the first time. I have two questions.
1. I am running PIDE to speed control. Speed is bi-derectional so it can be +ve or -ve speed (+6000rpm to -6000rpm). Can a PIDE output a +ve and -ve CV, depending on the setpoint? The output is going to an Analogue output card (+10V to -10V).
2. I am trying to play around with switching between auto and program (program) mode so I can set program to output CV=0 when PIDE need not run so it suffers no wind up. I have not implemented the switching between modes yet, but if you see in the attached image, I cannot even get an Auto=1 output when I feed 1 into ProgAutoReq. Have I fundamentally got something wrong?
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I appreciate any guidance from those with a bit of FBD and PIDE experience.
Cheers,
Ben
I am using a PIDE (and indeed an FBD logic) for the first time. I have two questions.
1. I am running PIDE to speed control. Speed is bi-derectional so it can be +ve or -ve speed (+6000rpm to -6000rpm). Can a PIDE output a +ve and -ve CV, depending on the setpoint? The output is going to an Analogue output card (+10V to -10V).
2. I am trying to play around with switching between auto and program (program) mode so I can set program to output CV=0 when PIDE need not run so it suffers no wind up. I have not implemented the switching between modes yet, but if you see in the attached image, I cannot even get an Auto=1 output when I feed 1 into ProgAutoReq. Have I fundamentally got something wrong?
I appreciate any guidance from those with a bit of FBD and PIDE experience.
Cheers,
Ben