Centroid Community CNC Support Forum

I don't see anything marked DF LED. There are 5 green LEDs in that area, that stay lit all the time. They do not change when pushing the Estop button. According to the DC3IOB manual there are six LEDs there: three in a column near the edge of the board, and three in a column set back a half inch or...

All the things you want to do are possible with CNC10, and should be possible with CNC11 and MPU11. Scott can verify.

My mistake, I momentarily forgot you were using Mach and not CNC11.

Since you are using a separate home switch instead of homing off the limit switch, limit switch settings and wiring would not be affecting your homing process.

On the Machine Configuration, Motor parameters screen: do you have the same input numbers entered for minus and plus home switch inputs as you have entered for minus and plus limit switch inputs? If not: if, for example, your minus and plus limits are entered as 4 and 3, while your minus and plus ho...

Did Z move smoothly before you ran Autotune?

What type of servo drives, motors, and position feedback are you using?

Is it possible that Autotune shook your encoder loose?

Press Alt-F6 for a command prompt.

Enter the command:

rm cnc9.hex

Reboot.

The PLC program can invert the state of an input, so that a closed input appears open and vice versa. The basic GPIO4D PLC program assumes that INP10 is the spindle drive fault input. The PLC program looks at bit 1 (value 2) of Machine Parameter 178 to decide whether to invert INP10, in order to sup...

I am pretty sure that any time you update from CNC11 v3.00 rev34 (or earlier) to a reasonably-current version (say, something since last February) you need to also update your PLC program because the jog pendant key mapping was changed. See http://ajaxcnc.com/ajaxbb/viewtopic.php?f=20&t=64 for l...

On a quick glance, I would guess that you need to: 1) Connect pin 19 (S, "normal") of each drive to pin 3 (FLT) of its axis header on the GPIO4D. 2) Connect pin 7 (G, "logic gnd") of each drive to pin 4 (FLTCOM) of its axis header on the GPIO4D. 3) Install a 470-ohm SIP resistor ...

You probably don't need the EMI filter in the 24VAC lines.

You could build your own rectifier to make 110VDC out of 83VAC, but you would be better off buying the unit from Ajax: "Capacitor & Bridge Combo", USD $89.