C11- MULTIFUNCTION CNC BOARD Rev. 9.3 - Stepper Motor ...

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C11 (Rev. 9.3) User ManualChanging the active low status of thepin used also inverts the waveform.- The signal or frequencies are notgetting to the board. It could be thecable or that you are passing thesignal through the same breakoutboard that you are enabling/disabling,so the outputs could be disabled, sothey will not get to the breakout board.- Problems with Mach3 PulseGeneration. Mach3 could haveinstallation problems (you did notrestart immediately after installation),or there could be something creating aconflict. Some dongle devices mightcause this, other software, likeQuickTime or drivers for touch screen.- Try a different cable.- Test the pins in the cable (before theyreach the breakout board) with amultimeter.- Test this in a different PC.- Follow Art’s suggestions for optimizingup WinXP:http://www.machsupport.com/downloads/XP_Optimization.txt.SYMPTOM 2: THE ANALOG OUTPUT DOES NOT REACH THE 10VDC.POSSIBLE CAUSEPOSSIBLE SOLUTIONS- Insufficient pulse width. It is possiblethat the signal pulse width is notenough to activate the optocouplers.- The signal is set active low or thebreakout board could be invertingthe signals.- In Mach X, go to Config / Motor Tuning /Spindle. Under Step Pulse lengthincrease this value, use a number from 3to 5, but start with 3.- In Mach X, go to Config / Ports&Pins /Motor Outputs. Change the active lowstatus of the pin used for step.SYMPTOM 3: THE OUTPUTS DO NOT GET ENABLED / NO SIGNALS ARECOMING OUT.POSSIBLE CAUSEPOSSIBLE SOLUTIONS- The EN terminal (Enable Outputs) isnot enabled. The board requires to beexternally enabled.- The Safety Charge Pump is notconfigured. The Safety Charge Pump- Make sure you are providing +5vdc tothe EN terminal. This +5vdc can betaken from the terminal next to it.- Start by disabling the SCHP. Enable itand configure it once your system isRevision: 01/27/2010 http://cnc4pc.com/TechDocs/C11R9_3_User_Manual.pdf 20/22
C11 (Rev. 9.3) User Manualcan either be configured in the controlsoftware or disabled by moving thejumper to the disable position.- The parallel cable is not wellconnected to the PC parallel port.setup.- Check if the parallel port is wellconnected to the PC.SYMPTOM 4: THERE IS NOISE IN THE SYSTEM, OR THE MOTORS DO NOTMOVE SMOOTHLY.POSSIBLE CAUSEPOSSIBLE SOLUTIONS- The board could be underpowered. - Make sure you are using a +5vdc1.5amp power supply.- There could be a short that could bedraining the power to the board.- Check that there are no hot spots in theboard or it’s connections.- Measure the board’s powerconsumption, it should be less than1200mA (depending on the featuresused).SYMPTOM 5: A I/O PIN MIGHT NOT BE WORKING.POSSIBLE CAUSEPOSSIBLE SOLUTIONS- A chip may have gone bad. Thesebuffers could act as fuses for thesignals, and they can go bad becauseof noise spikes or even strong static.- There could be a problem with theparallel cable or parallel port.- These chips are inexpensive and readilyavailable. You can order them here:http://www.cnc4pc.com/Store/osc/index.php?cPath=38_43.- Carefully moving chips around andchecking if the problem moves aroundcould be a way of figuring out if this isthe case.- Test this with a different PC or parallelport.8. Dimensions.Revision: 01/27/2010 http://cnc4pc.com/TechDocs/C11R9_3_User_Manual.pdf 21/22
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C11- MULTIFUNCTION CNC BOARD Rev. 9.3 - Stepper Motor ...

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