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Mesa 7i76E Overview & Single Ended vs Differential Mode Signals

In this video I talk about the Mesa 7i76E CNC controller card. I look at how power is applied to the logic and I/O sections, as well as single ended and differential signals for the stepper controllers. I also take a look at the 7i76E version vs the 7i76ED version which has sinking outputs. For the field inputs I talk about why it a good idea, if using proximity sensors, to select PNP type vs NPN. If you see any errors or something I missed please mention it in the comment section below. Chapters... 0:00 - Intro 0:15 - Logic Section, Input/Output Section, and Power Connectors 1:25 - Logic Section Power Input 2:15 - I/O Section Power Input (Orange Connector) 3:39 - Powering On the Board, LED indicators Light Up 4:06 - Vin Terminal and W1 Jumper 5:26 - Isolated Field Power for 5VDC Field I/O 8:00 - 5 Volt Field Power... Not Recommended 8:25 - 7i76E vs. 7i76ED version - Sourcing Outputs vs. Sinking Outputs 9:43 - Sinking Outputs Feature of 7i76ED Only Applies to Outputs not Inputs 9:57 - PNP Proximity Sensors (PNP, NC) for Field Inputs 10:23 - Single Ended Mode vs. Differential Mode Step and Direction 10:56 - Single Ended Mode Wiring for Step and Direction Signals 11:43 - Differential Mode Wiring for Step and Direction Signals 12:24 - Conclusion and Images of the 7i76E with Color Keyed Connector IDs