Messages

4011

General Mach Discussion / Re: Allen Bradely drives to Sanyo denki motors ?

« on: September 26, 2012, 04:11:28 PM »

I have the sequence graphs of the motor AND the drive BUT the combos I come up with do not work.

(;-) TP

4012

General Mach Discussion / Re: Allen Bradely drives to Sanyo denki motors ?

« on: September 26, 2012, 03:52:54 PM »

WOuld you happen to have a schematic of that setup. I can solder (;-)

Note on the drive/motor  does not look good. IF I could figure out the crossover between the two systems it would work BUT there seems to be about a 1000 combinations to try to make it work.

So far after 3days of combinations it still does not match up.

I was hoping to find someone that could take the Phase/Hall sequence that AB wants and look at the Phase/Hall sequence that the SDenki does and figure out the conversion.

I have drawn them out in cad and tried what I thought to be the good combo and all the variants of that without luck.

Several Servo techs have offered their good lucks (;-)  IF AB were cooperative they could probably look at the specs and get it right BUT IF a frog had wings he would not bump his rear when he jumped.

BUT to be fair the AB drive does have the tools to do it.   BUT it is like having an atomic bomb and NO plutonium.

(;-) TP

4013

General Mach Discussion / Re: Allen Bradely drives to Sanyo denki motors ?

« on: September 25, 2012, 11:11:26 PM »

HIYA HOOD question for you. What line drivers are you using for the step and direction on the AB drives?

(;-) TP

4014

G-Code, CAD, and CAM discussions / Re: Cutter Comp

« on: September 25, 2012, 12:24:50 AM »

FIll in the tool table Tool#235 with the tool diameter and in this case it would have to be a .250" diam or smaller tool  or else it will error out when you try to run the Gcode.

I am not sure what those values are you are trying to use(;-)

May want to give the manual a read.

Just a thought, (;-) TP

4015

General Mach Discussion / Re: Allen Bradely drives to Sanyo denki motors ?

« on: September 24, 2012, 11:38:00 PM »

I also have 3 more I have tested SURELY one of them would be still good (;-). They go through all the motions.

I don't have an AB servo to test with.

I think I am just missing the secret handshake. OR it may be time to pack it all up and call the scrap man.  (;-)

(;-) TP

4016

G-Code, CAD, and CAM discussions / Re: Cutter Comp

« on: September 24, 2012, 11:20:49 PM »

It works ok here IF you fill in the tool table for tool#235 AND it has a radius less than the smallest radius of the Gcode. WHick looking at the code would be  R .141"

Just a thought, (;-) TP

4017

General Mach Discussion / Re: Want to update DROs from encoder input in manual mode

« on: September 24, 2012, 10:18:41 PM »

You don't when in manual mode you will have to disable the axis drives. at that point the main screen dros won't mean anything. So you switch over to the manual screen There you will see manual movemnet of the axis .

When you are ready to go back to CNC you switch back to the main screen and reenable the drives then ref/home them and away you go.

You manual screen will have to have all the gizmos you want or need to run manually.

(;-) TP

4018

General Mach Discussion / Re: Want to update DROs from encoder input in manual mode

« on: September 24, 2012, 09:07:53 PM »

You need to create a seperate page to use as a manual machine.  That way you can setup USERdros to SHOW the positions the same as the main screen shows the Axis movement dros (OEM).

(;-) TP

4019

General Mach Discussion / Re: Allen Bradely drives to Sanyo denki motors ?

« on: September 24, 2012, 09:04:35 PM »

OK i verified that the motor has 8000 counts per rev so that is a 2000 count encoder.

As to the rest I don't have a clue as to the magic settings required or IF the drive can even RUN the motor AC servo/drives can be very tricky to match to a foriegn motor.

Always had good luck up until now (:-)

(;-) TP

4020

VB and the development of wizards / Re: SystemWaitFor(INDEX) ...will it work?

« on: September 24, 2012, 07:31:22 PM »

With a servo drive as Graham says with a VFD use the jog feature of the VFD to slowly rotate the Spindle and have MAch3 watch for the signal then stop and use DC brake of the VFD to lock the rotor. OR use a simple spring loaded  shaped cam to move the spindle into position after it has stopped

Just a thought, (;-) TP