You have Mach4 input names "Input #1" through "Input #4" mapped to PMDX-411 pins 11, 12, 13 and 15.
This connection is unavoidable, try adding an 18 AWG wireįrom the G540 case to the chassis of your computer.Ī few things first on your configuration and wiring diagram: Or safety ground because this can create a ground loop. Plugs into the G540 should not be connected to the chassis The metal shell of the DB-25 connector where the PMDX-411 Traditional computer style noise filters are not ratedįor the kinds of harmonic current that a VFD will generate. Sometimes the power input of the VFD radiates noise back Strip or may be a bare (often green colored) metal screw into The power cable from the VFD to the spindle motor should beĪ shielded cable and the shield should be grounded to the On/off by using the FWD and REV terminal on its interface and I am going to assume that you are controlling the VFD Is powered, then noise from the VFD is the likely source of the If the commands execute without the VFD powered, but fail if it In the lower half of the window, select Echo commanded RPM unless you haveĪn actual one pulse per revolution signal to use as feedback. Set the PWM/PulseFreq Output Polarity to Active High. Spindle motor relies on an internal fan and would overheat if run too slow, you Set the value in the Minimum PWM Duty Cycle as needed, for example if your Set the value in the PWM Frequency box to be 50. Select the PWM button near the top of the window.īelow that, select the Pin 14 button as the place to output the PWM. Select the Spindle Config tab at the top of this window. Next use the tabs at the top of the Mach4 screen, go to Configure > Plugins > PMDX-SmartBOB.Ī configuration window for the PMDX-SmartBOB device will open. Now click on the boxes at the bottom of the window for Apply and then OK.
Leave the red X in the Active Low column. Use the dropdown in the Output Select column to select Pin 1. Now scroll down the list of signals until you find Spindle Rev in the left column.Ĭhange the red X in the Mapping Enabled column to a green check mark beside Spindle Rev. Use the dropdown in the Output Select column to select Pin 17. Use the dropdown selector in the Device column to select SmartBOBUSB. Scroll down the list of signals until you find Spindle Fwd in the left column.Ĭhange the red X in the Mapping Enabled column to a green check mark beside Spindle Fwd. Pick the Output Signals tab at the top of this new configuration window.
Will happen if clicked, not the current state. Your screen, click on it so that it changes to read Enable. If you have a red Disable button in the lower left of Meme posts that are not funny may result in a permanent ban and possible curse to post author.Using the tabs at the top of the Mach4 screen, go to Configure > Mach. Memes are not permitted, unless they are CNC related AND funny. Please use the stickied sales and services megathread. Sales and or services posts are not permitted. Final decision is made by the community by way of reporting. Other considerations that may cause the removal of the post including lack of engagement with the community or the author has a history of self promotion. Posts that do not meet this criteria will be removed without question. Posts of self promotion MUST include original content directly from the post author and have been created with reasonable effort. Name calling or belittling will not be tolerated and may result in a permanent ban. Please be respectful of others when posting. If it appears the author has done little or no research it may be removed for low effort. Posters are also expected to have done some basic research on their own. Post authors are required to stay engaged with the community. Any posts without this information may be removed and only restored when the information is supplemented. You must include as much useful information as possible when asking for help or advice. Examples of this include unsafe instructions and unsafe modes of machine operation. No posts or comments that encourages unsafe acts.