> From: "Peter C. Wallace" <p...@mesanet.com> > Subject: Re: [Emc-users] 7i76 spindle speed control with Cyclotrol C150 > Controller > Date: February 23, 2021 at 11:01:44 AM CST > To: Alan Condit <condit.a...@gmail.com> > Cc: "Emc-users@lists.sourceforge.net" <Emc-users@lists.sourceforge.net> > > > On Tue, 23 Feb 2021, Alan Condit wrote: > >> Date: Tue, 23 Feb 2021 10:53:26 -0600 >> From: Alan Condit <condit.a...@gmail.com> >> To: "Emc-users@lists.sourceforge.net" <Emc-users@lists.sourceforge.net>, >> Wallace Peter C. <p...@mesanet.com> >> Subject: 7i76 spindle speed control with Cyclotrol C150 Controller >> >> PCW, >> >> I am trying to use my 7i76 Mesa card�s spindle control to control the speed >> on my DanFoss Cyclotrol C150 controller. The manual says, >> >>> "PROCESS CONTROL SIGNALS >>> A 0-10v dc control signal input may be used by connecting process signal(+) >>> to SP2 and process(-) to SP3. With tachometer feedback, the motor speed >>> will track the process voltage to better than 1 % linearity. The input >>> impedance is approx. 50K ohms. >>> Current process signals may be used with an additional resistor. A 1-5 mA >>> signal can be accommodated by shunting SP2 and SP3 with a 2.0K ohms, 1 /2 >>> watt resistor; for 4-20 mA, use a 500 ohms , 1 /2 watt. Set the "P" switch >>> in the closed (up) position, to allow the Cycletrol 150 to operate with >>> current process signals.� >> >>> OPEN SWITCHES (DOWN) >>> "A�, �B�, �C�, �D" >>> BASIC SPEED CONTROL >>> Control RUNS/STOPS from a single input command. >>> Closure on JOG puts Cycletrol into a RUN mode. >>> Opening the JOG produces a STOP command. >> >> >> >> >> I am not sure if SP1 should connect to Spindle+ or Spindle-. I am pretty >> sure SP2 should be SpindleOut. SP3 should connect to either Spindle- or >> Spindle+ which ever is left open after connecting SP1. Can anyone tell from >> the info I have furnished what the correct wiring should be. I am leaning >> towards Spindle- to SP3, SpindleOut to SP2 and Spindle+ to SP1. If I guess >> wrong will it damage the 7i76 board? >> >> The full manual is at >> <https://www.grahammotorandcontrols.com/pdf/Cycletrol%20C150%20DC%20Instruction%20Manual.pdf >> >> <https://www.grahammotorandcontrols.com/pdf/Cycletrol%20C150%20DC%20Instruction%20Manual.pdf>> >> >> >> Thanks, >> Alan > > As long as the voltage at SP1 is less than 15V, (relative to SP3) you should > be OK with > > SP1 --> SPIN+ > SP2 --> SPINOUT > SP3 --> SPIN- > > Peter Wallace > Mesa Electronics > > Peter,
I don’t know what was going on yesterday with the spindle brake. This morning I disconnected the SPINDLE ENA from the JOG and COM and reconnected the external switch in the original configuration and the spindle brake was working again. Then I reconnected the external switch in the same configuration as I had with the Mesa SPINDLE ENA pair and the spindle brake still worked. So I reconnected the SPINDLE ENA+ to JOG and the SPINDLE ENA- to COM(-) and the spindle brake continues to work. MYSTERY! It seems to bring the spindle to a stop from 500rpm in about a quarter rotation of the spindle (the specs say a maximum of ¼ second delay). So now I need to see if I can get a sample config from someone that monitors the spindle rotation coming to 0 rpm before changing the spindle direction, before I install the relay to reverse the spindle direction. Thanks, Alan > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
