The man page for Mitsub_vfd mentions the required settings. Check the scaling of the command.
Chris Sent from my Galaxy -------- Original message -------- From: Thaddeus Waldner <thadw...@gmail.com> Date: 2024-03-01 10:59 a.m. (GMT-08:00) To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Subject: Re: [Emc-users] Mitsubishi VFD control I recently set up a Mitsubishi D700 to work with Mitsub_vfd These inverters are highly flexible in how they are configured to respond to control commands. I spent many hours of trial and error to get the correct combination of parameters to even get it to respond to network commands. What tripped me up initially was that the drive must be reset by cycling the power to make any changes take effect. It has a handy list of all the non-default parameters. I have attached them below. Everything appears to work, though there is some inconsistency in how manual seed control works in gmoccapy. The E500 could be a whole different animal but maybe this will help. pr name value 1 Maximum frequency 300 2 Minimum frequency 30 3 Base frequency 300 7 Acceleration time 2.5 8 Deceleration time 3 9 Electronic thermal O/L relay 9 13 Starting speed 20 18 High speed maximum frequency 300 19 Base frequency voltage 200 20 Acceleration/deceleration reference frequency 300 29 Acceleration/deceleration pattern selection 2 41 RUN key rotation direction selection 5 72 PWM frequency selection 15 77 Parameter write selection 2 82 Motor excitation current 80 84 Rated motor frequency 120 96 Auto tuning setting/status 21 117 PU communication station number 96 120 PU communication parity check 0 124 PU communication CR/LF selection 0 160 Extended function display selection 0 298 Frequency search gain 39 340 Communication startup mode selection 1 551 PU mode operation command source selection 4 Hope this helps!, Thaddeus > On Mar 1, 2024, at 7:34 AM, lloyd wilson <llwilso...@rochester.rr.com> wrote: > > I'm using a Mitsubishi E500 VFD for spindle drive on the VMC I'm retrofitting > & can't get variable speed to cooperate. The mitsub_vfd program operates > properly (I think)- run/stop behaves as expected, speed commands are > generated and accepted by the VFD, but the motor speed stays the same. I > hacked in a couple of debugging statements to show the dialogs (running in > halcmd): > > setp sp.motor-cmd 50 > halcmd: 01ED11388EF SENT: 0x5 0x30 0x31 0x45 0x44 0x31 0x31 0x33 0x38 0x38 > 0x45 0x46 > 7!DEBUG: ,0,1, 0x6 0x30 0x31 > > show pins > > ........ > > 4 float IN 50 sp.motor-cmd > > ....... > > then > > setp sp.motor-cmd 80 > halcmd: 01ED11F40F6 SENT: 0x5 0x30 0x31 0x45 0x44 0x31 0x31 0x46 0x34 0x30 > 0x46 0x36 > 7!DEBUG: ,0,1, 0x6 0x30 0x31 > > show pins > > ........ > > 4 float IN 80 sp.motor-cmd > > ....... > > the messages are properly formatted per the Mitsub manual & replies show no > errors > > --but the test motor keeps running at the same speed. > > Anyone have a clue where to look for the solution? > > as always, thanks > > -ldw > > > > _______________________________________________ > 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 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
