Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: Matt789 on August 02, 2014, 07:22:05 AM
-
Newbie here.
When i start my computer the led on the BOB lights up until i open mach 3. When i open mach3 the BOB light turns off and won't turn on again until i restart my computer. I believe it could be my setting in mach3 because even if i disconnect the BOB and use a voltmeter to watch the parallel port pins i see the power turn off when starting mach 3.
Have a longs kit (bob db25-1205, 3 axis, dm860a drivers) wired up according to the included schematic. Running a 32bit machine with an onboard parallel port. Parallel port is set to lpt1, hex 378, bios for the port is set on ecp mode.
I have tried with "motor outputs" and "input signals" selected as enabled and also turned off. I have tried all combinations of enabled and active high/low for the estop setting.
Inputs greatly appreciated. Thank you.
-
even if i disconnect the BOB and use a voltmeter to watch the parallel port pins i see the power turn off when starting mach 3.
Are you trying to power the BOB from your parallel port ??
Tweakie.
-
I was. The longs diagram doesnt show an additional 5v power supply so i thought the parallel port must power the board. Since figured out that i need an external supply. I hooked one up and the board is working. Thank you for your reply. Now my issue is that i only get one motor pulse when jogging before the driver faults.