Topics

1

General Mach Discussion / machine safty issue

« on: April 02, 2008, 01:52:10 PM »

reading some of these posts about spontanious machine runs.There needs to be a discussion about a basic hardwire start stop circuit for machine power.I would suggest a start stop button controlled contacter with the soft estop controlling a relay in series with the stop circuit.If someone has a basic circuit diagram they could post go for it Al

2

General Mach Discussion / signal split question

« on: April 01, 2008, 08:32:31 PM »

This will probably take someone with hands on signal experience but here goes.Weve established I have a complmentary or differential  quadrature signal.I.E. +-a,+-b, index. Can this signal be split using only +A,+B ,index and disregard the rest.Im wondering If I can close to mach and galil . or is an useless effort.It may be usefull to others in any case. thanks Al

3

General Mach Discussion / resolver to digital

« on: March 29, 2008, 05:07:01 PM »

Are the resolver to digital converter boards on the market compatable with mach.Or should I just start shopping for lineir encoders. thanks Al

4

General Mach Discussion / siemens analog signal question

« on: March 23, 2008, 04:20:25 PM »

Does anybody know what the (VDI) standard is. I'm still trying to start a plan to upgrade my simodrive.I have found out its a +- 10 volt speed command. conforming to VDI  I need to know if i'm going to run into some wierd incompatibility  Thanks Al

5

Forum suggestions and report forum problems. / new topic

« on: March 23, 2008, 01:24:04 PM »

How about a research topic .As a group there are many thousands of hours spent  surfing for information .If anyone finds a site with good information they could post it.This could save members a lot of time.Heres a start  www.legacypower.net/documents    AL

6

General Mach Discussion / six phase stepper reprogram?

« on: March 16, 2008, 05:20:03 PM »

Is it possible to use the signal  for a six wire stepper to drive a six switch inverter bridge? this would solve my salvage the simodrive problem.I am also thinking of the small pic boards for robotic hobbyists.But I couldnt program one. Any input thanks Al

7

General Mach Discussion / siemens 6sc610 drive

« on: February 21, 2008, 10:41:35 AM »

Hello Iam new to this but I have a project.It is a acroloc vmc with the above controller.What I would like to do control the inverter section directly and and get rid of some old and propriatory electronics.I know the inverters take a pwm signal.My problem is the interface is a 16 pin two row connecter and I dont have a clue which pin is what.the siemens website has zip.does anyone have any info on this . or is there a way to identify pin function thankyou AL

8

General Mach Discussion / PWM or PW setable

« on: February 19, 2008, 05:49:07 PM »

I  have been reading as a guest for some time.And I still do not know if machx can now do modulation or is it setable for tuneing. thanks al