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
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