Centroid Community CNC Support Forum

Either locate the "low-lube" PLC input on your wiring diagram and put a jumper on it, or change Machine Parmeter 178 to 1.0 (or add 1.0 to whatever value is already in Parameter 178. See the manual.

Yes.

The underlying control boards (MPU11, GPIO4D, DC3IOB, DC All-in-one, DC1 etc.) are all the same regardless of whether it is a mill or lathe application.

A steady number and no decimal point indicates normal operation. The "1" means that the first axis on that drive is the first axis in the system. This is important information when you have multiple drives (e.g. a 4-axis setup with an All-in-one plus a DC1). A flashing number, with the dec...

1 - Power Failure The logic power supply is indicating to the DC3IOB that it is operating out of specification. Check power supply wiring (the grey wire and AC input in particular), replace power supply. 2 - 15A Not Available Current selection jumpers on any axis are set to 15A, but the drive is not...

Can the software merely check the output frequency of the drive and interpolate the speed from that assuming the loads are relatively light and not slowing the rotation? Yes, more or less. Assuming you are using the Centroid PLC to control spindle speed, then the PLC already knows what fraction of ...

1. Switching the DC ensures that the supply is cut immediately. If you interrupt the AC supply power will continue to be available for a short time while the capacitor discharges. How long depends on how much load is on the drive. You are right that it is hard on contact points if you interrupt it u...

Yes on the +/- 10V analog reference. You want the MPU11 and GPIO4D combination.

No on step and direction.

I will fix this as soon as i learn how to compile the PLC. Exactly how you do that depends on whether you are running Linux or Windows. In general terms: 1) Go to a command prompt. 2) Make sure you are in the control software directory (/cncroot/c/cncm on Linux, c:\cncm in Windows). 3) Enter a comm...

From what I have seen, the backwards jogging is a bug in many of the factory PLC programs. Look for lines like: ;KbJogAx1Plus_M: Right arrow if Kb_Left && AllowKbInput_M && KbJpActive_M THEN (KbJogAx1Plus_M) ;KbJogAx1Minus_M: Right arrow if Kb_Right && AllowKbInput_M &&am...

Is it showing a steady "1", or is it flashing "1" with the decimal point lit? If it is a steady one, that is the no-error indication (telling you that the DC3IO's first axis is axis #1 on the drive bus). If it is flashing and the decimal point is lit, then you (still) have a logi...