intertarik
Member
hello,
I'm new in automatics, and i'm working on a speed control project for a hydraulic turbine.
i'm using FB41 pid bloc, but the LMN give me 0 to 100 input.
the SP is 1000 RPM and the PV is calculated from an inductif sensor.
how can i get bipolar LMN -100% ... +100%
if the speed >1000 rpm, then LMN give négative value to reduce the speed.
and if speed < 1000 rpm, the LMN give ^positive value to increase the speed.
thx a lot
I'm new in automatics, and i'm working on a speed control project for a hydraulic turbine.
i'm using FB41 pid bloc, but the LMN give me 0 to 100 input.
the SP is 1000 RPM and the PV is calculated from an inductif sensor.
how can i get bipolar LMN -100% ... +100%
if the speed >1000 rpm, then LMN give négative value to reduce the speed.
and if speed < 1000 rpm, the LMN give ^positive value to increase the speed.
thx a lot
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