Centroid Community CNC Support Forum

Hi, i have modified the plc program as per Tom Blough's post of Sat Sept 5th but still no life in the hand wheels. I have rechecked the wiring and everything is as it should be. hand wheels are connected to axis 3 & 4 inputs. I'm guessing i'm missing a step somewhere in getting them to act for A...

Thanks all, Tom looks like you were right re the 5000 count encoder. I have a 1024 count version of the same encoder so I swapped it out for that one and the readout is correct and completely stable at higher rpm. Just need to work out why the VFD switches itself off as the spindle approaches 1750 r...

Hi Tom, thanks for that. You were quite correct in that i did not have the max frequency set high enough in the inverter. I've set parameter 33 back to 1 and it seems okay now. The only fault i now have is that once the rpm display readout gets above around 1200 rpm the readout starts to become very...

Hi, just working on getting the spindle running correctly under Oak but have run into a slight problem. i set up the spindle as per instructions to give 10V at max requested rpm of 3000 and when measured all is correct. When an MDI command of 3000 is input the spindle rpm display reads 1500 which is...

Hi Marty, credit for the wiring schematic should go to Marc, i just copied his instructions. I have attached a copy of his schematic (although i think it's attached earlier in this thread. Now the handwheels.They are connected to Oak through axis headers 3 & 4 (as shown in the photo earlier in t...

All running nicely now. Still the handwheels to look at but with Tom's modified PLC program to guide me i might get there. Attached is a simple document noting the Mitsubishi servo drive parameters that i had to change from default to get it to run in case anyone else has MR-J2S drives that they are...

Altered parameter 1 to 3 and now x- and x+ Jog buttons in vcp are in the right places but now when you start cnc12 and press start to home to + limit switches it won’t home. Jog buttons work correctly.

Hi guys, an interesting little problem found whilst setting up the soft limits. home switches all set using proximity switches. Machine homes correctly to the switches set for +X and +Z which in my case are toward the operator (+X) and toward the tailstock (+Z). Now on setting the soft limits at the...

Thanks Tom, I’ll give it a try.

Hi Marc, axis moving along nicely now. Okay, so now the hand wheels (and i bet you knew that was coming). I have 100ppr encoders built into the handwheels . X axis connected to axis 3 oak and Z axis connected to axis 4. 5v is supplied from headers H8 and H9 (Pic attached). When setting up in motor c...