Topics

1

General Mach Discussion / 2 wire hall effect switch, how to wire it up?

« on: July 10, 2009, 04:23:05 PM »

hi
i have a pacer 2500hds which has 3 of 2 wire hall effect switches on it,
ive found that if i put 5v to the v+ and 0v to the v- it creates a current draw of 200 milliamps when the machine gets to it so they work, but how should i connect this to mach3?
if it is a 3 wire type i have an output so its easy but these are 2 wire ones,
any ideas before i try it blind?

thanks

2

SmoothStepper USB / smoothstepper hangs mach3

« on: June 09, 2009, 09:29:47 AM »

hi all
read a few long posts on here and i have similar issues to others

installed a smoothstepper to have greater control over a pacer 2500hd i own that we converted to mach3 about 4 years ago
now the ss is in a small abs box with a 8 relay board next to it
this box is in the main control unit metal box that contains the 3 msd stepper drives, 2 power units and a phase converter for the spindle speed control.
all cables are shielded except for the 2 to 4 iches exposed inside the control box. no issues prior to fitting ss using all the same parts.

i have the same issue of mach freezing every 3 to 5 mins.
if i close mach the ss actually stays locked on and holds the relays switched on, only way to switch it off is to pull the usb cable

i have tried the following:
if i only connect 2 stepper cards in any combonation it works for 15+mins (as long as i left it in my test) connect the 3rd and it trips out in 3 to 5mins

if i connect any 2 cards and switch on any 2 relays it trips out, so i thought maybe a load issue so i wired out the relay board (relay 1 switches on machine relay 2 spindle)
but it still does the same if i issue the same commands ie turn on 2 relays but they are not wired so feed is to pins in plug only doesnt mater if the spindle is on or not, if i turn the machine off i loose the stepper driverr feed so icant do that.

disconnecting the wires to the stepper cards at card end elimates the problem of the freeze in any state that i have tried (the steppers are msd units and have there own opto isolation at the card end.

is this another noise problem, if so is this a coman problem to the ss system.
i can only be getting noise from the opto isolated stepper drivers which do not have a cable run near any other wiring, or the ss acting as an aeriel or the good quality 3m usb gold plated cable.
or i could hhave a port/pin problem but i cant see that as its the same settings
any ideas would be good.

3

G-Code, CAD, and CAM discussions / which m code to which output pin

« on: May 19, 2009, 04:01:20 PM »

ok apart from m3 m4 m5 and m7 m8 m9
what m codes relate to what outputs?
i cannot find anywhere a listing of the generic m codes, maybe it is because they do not do what i want
i have a pacer mill and it has a good inbuilt system but i have changed to mach3 and fitted all new drivers but still use the main guts and control board relays.
i need to
switch on the machine main power
switch on the drivers (want to do it seperatly as i also have vacuum beds and swarf control)
switch on spindle
switch on vacuum table
switch on swarf extraction

currently i use this strin to start
m3 (turns on machine)
m7 (turns on cards and spindle wires joined together)
m8 turns on vac table
then i can m9 or m30 depending on what i want to turn off but i cannot turn off spindle and still manually jog machine

these m codes can be set to the output pin easily in the standard set up tabs


so to do what i want do i need to write a macro and if so is this correct

rem m code to turn on spindle
activate signal (output14)


then save this as m103.m1s

and to turn it off
rem mcode to switch spindle off
deactivate signal (output14)

and save that as m104.m1s

then if i use a m103 i turn on my spindle and m104 turns it off and if i connect a relay to pin 14 i have control, i can then set active high or active low to correct any wiring on the relay to make it switch the on with m103 (the relay is allready there and wired in so i do not know if i need to pull it down to 0 or lift it to 5v


is this correct?
and why is ther no listing of a mach commands to output table or am i just not searching it out
thanks