Esab Ultrarex UXD-P2000 Upgrade Project

Esaber wrote:

Where does each wire go on the linuxcnc side?

- Mount the PC and Mesa boards, Install LinuxCNC,
- Connect only the power to the Mesa boards, +5V and +24V, use the existing 24V supply on the machine, nothing else,
- Make a config that roughly represents what is on the machine, check if the config works and the Mesa boards are visible and functional,
- Wire the E-stop switches to one of the inputs on the Mesa board, edit the config, make sure the e-stop works,
- Wire the machine enable to one of the outputs on the Mesa board, make sure it enables and disables the drives by pressing F2, beware that motors will move slowly or jump violently when enabled, the clicking of one or two relays on the main power box should be heard,
- Wire the encoders, one by one only, check the DRO on screen if the counting goes up and down by moving the motors by hand, no need to enable the drives for this, it should count even when e-stop is active. Repeat for all encoders, i think 2 in your machine,
- so i do not repeat, follow this tutorial to wire the servo inputs to the Mesa board:
forum.linuxcnc.org/10-advanced-configura...ning-detailed-how-to

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Read the manuals for proper powering of Mesa boards, setting the jumpers on them, and input output pins. Beware that physical pin 1 on the Mesa connector is always input or output 00 in hal.

There is 24V in the control box so no need for wires, and use the PC USB for 5V, just cut a USB cable and wire it to the Mesa terminals.
Mind the polarity.

Nope !