If setting up an XYZ carve, you will only have 3 limit switches and so can ignore that labelled X2, Y2 and Z2 We will ignore the 5th pin labelled “A” this is for future use. Note the Green and Black have swapped position here. If so then for this motor reverse one of the pairs of wires, so for this one left to right: Green Black Red Blue. *2 The A motor often requires running in the opposite direction to the X or Y motor that its tandem driven with. When connecting to the motor connectors, keep one pair on one side of the plug and the other pair on the other side of the plug – so for example left to right: Black Green Red Blue. *1 Our motors use Black + Green as one pair, and Blue + Red as the other. A Steps will be duplicated from either X, Y, Or Z.A Direction will be duplicated from either X, Y, Or Z.19 Mounting screw holes – self-explanatory again.
#GRBL CNC SETUP DRIVER#
For Motor driver faults to activate fault conditions, the jumpers 4, 5, 6, &/or 7 need to be connected. Fault Logic -F = Feed hold on an error, A = abort/reset on an error, E feeds to a spare pin on the Arduino that could be set up as a separate error condition in code.CNC Control (Probe / Resume /Feed Hold / Estop) These have a common ground and are connected to buttons or switches in normally open config.USB IO – you guessed it, stick the USB cable in here.External driver outputs, connect a DB 15 socket here or solder in wires manually to access the Enable, Step, and Direction outputs for each X Y and Z axis (enable pin is common across all).If using multiple limit switches per axis there may be two wires into each X Y & Z – The A limit pin is unused. Limit Switch Inputs, GND is common across all switches, X, Y, &, Z go generally on the normally open side of limit switches.Direction goes high or low to suggest direction (not generally used) – PLEASE SEE SPINDLE PORT DETAILS BEFORE CONNECTING A PWM SPINDLE OR LASER CONTROLLER – To avoid damage to your equipment!!! Spindle control output, GND & PWM runs a pulse width signal for controlling DC spindle speed controllers and alike, GND & 0-10 runs a 0-10V signal for controlling the speed of a VFD.Fan Connector, to connect your fan if using one, note voltage selector on JP8.X Micro step M0 / M1 / M2, Generally On On Off.Y Micro step M0 / M1 / M2, Generally On On Off.Z Micro step M0 / M1 / M2, Generally On Off Off.A Micro step M0 / M1 / M2, Generally On On Off.A Motor output (usually tandem with Y), one motors coil pairs on the left side, other on the right side *1 *2.Z Motor output, one motors coil pairs on the left side, other on the right side *1.Y Motor output, one motors coil pairs on the left side, other on the right side *1.X Motor output, one motors coil pairs on the left side, other on the right side *1.The regulator for 12V fan power and 0-10V VFD output will work harder at higher voltages and has been selected for 36V max hence the 36V max on the power supply. There is merit to running the Steppers at as high a voltage as practical (within reason) however 24V is plenty.
#GRBL CNC SETUP DRIVERS#
The DRV8825 Drivers can actually handle up to 45V, 36v, however, is the largest standard voltage power supply readily available. This fuse acts on the 12-36V motor power circuit.