Steve101 Posted August 27, 2015 Report Share Posted August 27, 2015 Trying to control speed of dc motor with encoder feed back. I'm using KB, SCR drive with SI-5 signal isolator that takes a 0-10v signal from V350&V430 plcs with analog expansion modules. Measuring speed with basic frequency measurement in hardware configuration converted to feet per minute. So far I have fairly decent control using increment/decrement. Comparing set speed with actual speed and inc/dec output based on that. With some fine tuning this can probably give me acceptable control though I would prefer more stable control. Can somebody give me a general idea on how to ramp the motor up/down to set speed before inc/dec takes over. I have not found a reasonable way to do this yet in reasonable amount of time. Also, is incrementing/decrementing reasonable way to do this? What would "standard practice" be for this type of application, perhaps PID or just PI control or other? Any feed back is appreciated. Quote Link to comment Share on other sites More sharing options...
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