There are many ways to wire an emergency stop switch. So, a relay can turn on or off a high voltage device with a lower voltage (24v) signal.Ĭlick the link to respond: How do I connect the outputs on the Mach3 USB motion card?Ĭlick the link to respond: How do I connect the outputs on the USB motion card for Mach3? A relay is required to turn on these devices because the devices are typically higher voltage, like mains (110v or 220v). This mechanical switch can turn on a device like coolant and mist, or even a router, if you are using one.
The outputs mentioned above are to connect to external devices and will require a relay (a mechanical switch that is controlled by a digital signal). If you are not using a spindle/VFD (we highly recommend one), then you will need to purchase a 24v power supply to power that side of the board. If you are using a VFD (Variable Frequency Drive, also called Inverter) for a spindle, they typically have a 24V out terminal that can be used with our USB motion card. Do I need to re-install Mach3?Ī 24V connection to the USB motion card is only needed if you are using limit switches (inputs), powering the spindle/VFD speed and direction, and for the outputs, for powering other devices (mist, coolant, etc.). Arrow keys cause red LED to blink, but cannot duplicate 24V output with M3 (or M4) commands as shown in the video. Following instructions in the video "Mach3 USB controller outputs". Additional Information:Ĭlick the link to respond: Mach3 USB interface board initial setup. Is it possible to have the M3 signal show up on Output#1? Thanks again. However if (in Spindle Setup tab) I set (in "Relay Control")M3 Output# to 3 and M4 Output# to 4 things work as expected. Still no voltage showing on output 1 (of the board) when I input M3 in the Input section of the MDI tab. Pin Numbers for each Output# are same as Output# (Output#1 set to Pin Number 1, etc.). Under Ports & Pins>Output Signals I show Output#1 through Output#4 as Enabled. Additional Information: Thanks for your help. This is a part of the configuration I did not show on the video I created on using the outputs for the RNRMotion controller. If the outputs are not functioning as expected on the Mach3 USB controller, confirm that the port for the output is 3.
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