Greetings all; Working on getting the BS-1 working. ATM. PID.a-feedback is disconnected from from the A encoder, and hitting the [] keys to run the motor, the feedback from the encoder is the opposite sign of the PID.a input cmd.
1. Is this the correct state? Or do I need to swap encoder A/B leads? 2. Does anybody have a cmos buffer board I can put between the encoders leads and the bob's input? I have apparently damaged the encoders output stages, and hooking its leads up to the bobs inputs results in the rising edge of the signal looking like its charging a large capacitance. Falling edge is fine. Quadrature is excellent. However as the motor speeds up, it eventually reaches a point where it fails to make it to a logic 1 and the whole thing goes nuts. So I need the equ of a 74HCT245 to buffer it and bring it to where it can do a rail to rail swing. Disconnected from the bob, it does do a rail to rail swing with a rise or fall time in the very low microsecond range. Thanks all. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
