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First startup motors not running
« on: October 08, 2017, 09:50:20 AM »
Hi, Finally got to startup but no motors running, I have tried all the suggested info from machsupport but no joy, my first thought was the Stepper motor PSU I got from ebay was 24volts 15amps BUT it wasn't after checking realized they sent me a 12volt 30amp OK but should still have worked, the steppers Drivers are TB6600 and BOB is an ECG-Savebase, first thought was BOB PCGND needs connecting to motor PSU GND but then saw schematic showing opto-coupled inside TB6600 so +5V goes to all +ve on TB6600 and connections from BOB Pulse Dir go to -ve of TB6600.
I then put a scope on BOB output connections and jogged X,Y,Z I did have some signals on PULSE output a train of about 10 pulses then a couple of second gap and again then same then a gap of about 10 seconds and again pulses high varied from 5V to about 2v, the signal on DIR went from 0v to 5v when jogging from X Left to X right and same on all others, so should I be able to see a pulsed signal from these PULSE output, my scope connection was from PC 5V connection and one of the output connections.
Checked Jog which is 50%
Parallel pins are 2,3 X axis 3,4 Y axis 5,6 Z axis
Also tried Enable active Low/High which I have on pin 14 no diffference.

Grateful for any help.

Regards John
Re: First startup motors not running
« Reply #1 on: October 08, 2017, 09:53:08 AM »
Made error on Parallel pins should read 2,3 X axis 4,5 Y Axis 6,7 Z Axis.

Offline Tweakie.CNC

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Re: First startup motors not running
« Reply #2 on: October 08, 2017, 10:14:10 AM »
Hi John,

If you attach your <profile> .xml file (the one from your Mach3 folder) we can check your set-up. Copy the .xml file and rename it to john40131.xml before attaching.

Tweakie.
KEEP SAFE !
Re: First startup motors not running
« Reply #3 on: October 08, 2017, 11:18:10 AM »
Hi thanks for quick reply, sorry to be a pain.
I take you mean the Mach3mill.xml file I have renamed.

Also looked at pulses from Parallel port and they are very sharp pulses and the BOB seems to give same, thought it would have been more like a square wave.

Regards John

Re: First startup motors not running
« Reply #4 on: October 08, 2017, 02:18:11 PM »
I read another thread about motors not running and was asking about parallel port, mine is on board was 0x378, I tried to put a Dynamode PCI Parallel card I have but cant find drivers for that so binned that idea.

John
Re: First startup motors not running
« Reply #5 on: October 08, 2017, 11:27:51 PM »
Hi,
what sort of PC are you using? What version of Windows is it running? Have you run DriverTest.exe?

Craig
My wife left with my best friend...
     and I miss him!

Offline Tweakie.CNC

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Re: First startup motors not running
« Reply #6 on: October 09, 2017, 02:12:04 AM »
Hi John,

Just checked your .xml and cannot find anything really bad. Just a couple of suggestions...

Uncheck A Axis is Angular (General Config).
In Motor Tuning set Step Pulse to 2 minimum & save change.
Try changing Step Pulse to Active Low in Motor Outputs.
Try changing Enable1 to Active High in Output Signals.

Change just one item at a time and try it before changing another item - you know the fault-finding drill.

(Your Velocity and Accelerations are low but that’s OK at this stage, they can be increased later).

I am sure you are aware of this but if you are using an OS later than Win7 or 64 bit then it will never work with the LPT parallel port – you will need an external motion controller.

Tweakie.
KEEP SAFE !
Re: First startup motors not running
« Reply #7 on: October 09, 2017, 08:12:48 AM »
Thanks for help.
Joeaverage...My machine is home built from an older MB which has a parallel port on board :-

MB Asus M2N68-AM Plus
Memory 2gb Corsair XMS DDR2
CPU AMD Athlon 7750 Dual Core 2.71ghz
Hard Drive SSD 128gb
OS Windows 7 32bit service pack 1
Checking Bios
Parallel port Settings
Address 378
IRQ (IRQ7)
Set to Normal, other options are EPP,ECP and EPP + ECP

I did a Driver test, strange would only work under administrator, posted pics.

Tweakie
I need to replace this power supply which was sent in error before I go any further only PSU I got was a 24v 3.2amp which I tried but could smell something getting hot so turned off.

Regards John
Re: First startup motors not running
« Reply #8 on: October 09, 2017, 01:45:45 PM »
Hi,
well the PC and parallel port certainly look fine.

What breakout board are you using? Can you post a pic and maybe the manual?

Craig
My wife left with my best friend...
     and I miss him!
Re: First startup motors not running
« Reply #9 on: October 09, 2017, 01:56:43 PM »
Hi,

it suppose to be ECG-SAVEBASE but put PDF file of board etc.

Regards John