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Author Topic: pulley selection  (Read 2822 times)

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pulley selection
« on: November 17, 2009, 04:36:12 PM »
Can any one tell me how the pulley selection works ? i dont under stand it how do i set it up ? if im useing a VDF to run my spindel do i just use pulley one and set it fo rmy min and max speed or do i need to do it in steps and work my way up to 2500 by the time i get to 15 ?  Im asking because i cant get a cnc4pc c6 card to work ?

Offline Hood

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Re: pulley selection
« Reply #1 on: November 17, 2009, 04:45:35 PM »
Just ignore it if you have a VFD unless you have the index pulse on the motor and the spindle is not connected 1:1 with the motor. It is meant for people who have stepped pulleys or different gear ratios between motor and spindle.
Hood
Re: pulley selection
« Reply #2 on: November 17, 2009, 05:08:54 PM »
mmm I'm a bit lost now then as my motor to spindle is 16t to 18t on so should i leave it like you say as there is not going to be that much of a speed difference

Offline Hood

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Re: pulley selection
« Reply #3 on: November 17, 2009, 05:13:28 PM »
Where do you have your index pulse? motor or spindle?
Hood
Re: pulley selection
« Reply #4 on: November 17, 2009, 05:18:33 PM »
im sorry i dont know what a index pulse is should i is that some thing to do with rpm counting

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Re: pulley selection
« Reply #5 on: November 17, 2009, 05:23:12 PM »
Yes its just a sensor that you have so you know what the spindle speed is. Its not needed on a mill, its just handy, so if you dont have one dont panic ;D
 Never set up a VFD with Mach so not sure about the tuning procedure I am afraid but pulleys shouldnt really come into it.
Hood
Re: pulley selection
« Reply #6 on: November 17, 2009, 05:25:21 PM »
Thats good news then that means i can move on with my inquest in to my problems thank you as all ways im sure ill get this thing running some way