Thread: PCI parallel card / BOB
Hybrid View
-
29-01-2012 #1
I have a small niggle with my newly built machine. The PC is built into the machine housing itself so it's a complete unit. When I press the PC on button the BOB is closing the spindle relay, making the spindle spin until I enter EMC2.
Is there anyway that a PCI card can be configured so at not to send out a signal during the boot sequence? I thought about inverting the relay contacts & BOB output, but that would make the spindle start as soon as I plug the machine into the wall. I know I could rewire the spindle to take power from the seperately switched motor drives but i was wanting to keep each system individually fused.
Many thanks,
Gavin
-
30-01-2012 #2
Most decent BOB's have a charge pump circuit built into them to stop such as this happening by not letting any signals thru untill the control software sends 14khz signal taking control. Some BOB's will let you turn this feature off so could this be turned off.?
What Bob is it.?
-
30-01-2012 #3
I know Mach uses a charge pump, does EMC ?
John S -
-
30-01-2012 #4
-
30-01-2012 #5
I always wondered what a charge pump was.
This is the BOB, though I don't see a reference to charge pump : http://www.slidesandballscrews.com/pdf/ZP5A-INT axis interface board manual.pdf
I can give Gary a shout & see what he thinks.
I just checked the online docs for EMC2 & it is configurable for a charge pump . Bet you it turns out the BOB isn't! :cry:
-
30-01-2012 #6
Just found out, no charge pump.
Plan B then :naughty::naughty:.....
-
30-01-2012 #7
Various people sell just a small charge pump board as an add on.
http://www.cnc4pc.com/Store/osc/prod...products_id=51John S -
-
The Following User Says Thank You to John S For This Useful Post:
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
Fix engrave vertical gap or Upgrading laser cutter control card Leetro MPC6515 ?
By Paul Shroom in forum Machine DiscussionReplies: 3Last Post: 18-05-2014, 03:40 AM -
Steppers, Series, Parallel
By Ricardoco in forum Stepper & Servo MotorsReplies: 14Last Post: 12-01-2013, 08:28 PM -
Parallel PCI Card Experience
By andy0202 in forum Computer HardwareReplies: 11Last Post: 24-08-2012, 10:39 PM -
plan request connection card PCPPS
By ali hedi in forum General ElectronicsReplies: 2Last Post: 07-04-2010, 08:18 PM -
Controller card selection
By Hogout in forum Motor Drivers & ControllersReplies: 7Last Post: 14-05-2009, 11:26 PM
Bookmarks