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Pokeys57e & M-16 PROBLEMS

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gabedrummin:
I have a cnc lathe controlled with a  M-16  with the Pokeys 57e .I am using a Lichuan AC servo and Lichuan B-2 drive to control my spindle .Currently I can not thread . I can control the the spindle speed and direction . I am using G76 for threading and once the machine gets to the second line of G76 all motion stops with no error codes. I do have an encoder connected and index is mapped in Mach4 .When I check the diagnostics page the light for index dose not blink .If I set index as active low light is on constantly and never blinks if I uncheck active low light never comes on .I really need some help to get this fixed .If someone has a m16 running an encoder can you please tell me if the index light blinks on the diagnostics page Thank you

DanienT:
Hi, I appreciate this post was a few years ago. But I have had the same issue and have been told by Pokeys that direction and pulse does not work for threading on the lathe. They are trying to find a solution but not for the immediate future.

I am trying to control the servo with 0-10v, which would allow threading. But am having problems with enabling and the servo direction. The 0-10v to the servo works fine.

If you had a solution I would be interested to hear it.

Thanks.

gabedrummin:
What type of servo driver and brand are you using ?

DanienT:
Hi,

I have a Lichuan LCMT- 26M02- 130M10025 with the B2 servo drive and as mentioned driving it with 0-10v pwm using Pokeys 57CNC.

I have managed to sort out the direction control and understand the enabling of the servo itself but not the method using the Pokeys board. I understand that the axis have enable pins so I suppoose I could just use one of those when clicking the enable button within Mach4. i would have liked to have done it with another pin but my understanding of Lua and coding is crap. I can manage a little ESP32 Python and thats it.

I do have a problem with the 0-10v. The servo acts and displays as though it only getting half the value of the pwm. The pwm voltage seems fine at the servo input, but once switched on drops significantly. 

Thanks.

gabedrummin:
You have to re-program your servo driver to use speed mode .When you buy them they are set up for step and direction . Get out your manual for the drive and it will show which parameters to change to put in in speed mode .In speed mode you can control with 0- 10 volts .I use the M-16 relays to spin the motor forward and reverse .

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