Centroid Community CNC Support Forum

In the beginning, I was planning to build a MechMate with Acorn and Clearpath. A "Industrial CNC" brand used 4x8 cnc router came up cheap so I drove 8 hours to go get it. With some backyard engineering, I got it into my basement shop.


I removed the Mach3 board and totally reworked the electronics. I added a second box and moved the VFD and power supplies into that. I added breakers, fuses, terminal blocks. Originally I set up a latching safety circuit before I knew Acorn does much of what I was trying to achieve. I added a proper shut-off switch, water temp/flow guage, volt/amp meter, hour clock.



The CW250 drivers were 75Khz and Acorn didn't like them so I bought Stepperonline CL86T drivers and 34HE46-6004D-E1000 steppers. Wanting maximum performance I removed the 48v 500w power supplies and installed a 1500w 72v 27a power supply. I have it set to 60v now because that is what the torque curve from Stepperonline shows.


I wired the drives as per s15207.r1
I have a latching circuit using a contactor as per s15117. This is also how my VFD is set up.
I have the Y axes wired for hardware pairing with homing and squaring using outputs as per s15200. I have moved some inputs/outputs as the three wiring schematics overlap a bit. I am using the db25 connector with an old printer cable I cut apart. All leads were pinned out and tested - no resistance so good connections. I am using the default configuration. (pins 2-9 and commons on 19-25). I do not have the home proximity sensors connected yet. I started with the setup file for CL86Y as my drive didnt seem to be a selectable option. I modified the file on my machine at every step.

I chose the drives based on cost and the fact that there was a schematic here for it. I wired it as per s15207. Comparing that to the documentation that comes with the drive it should work? I removed the enable wires. I disconnected all but one drive. CNC12 starts with a reset triggered. The drive is not locked at this stage. When I release the reset button on CNC12, the motor locks silently with no vibration or heat rise. The x,y,z positions change on the screen as I jog but the motor does not turn.

I systematically removed all 'extras' from the equation. At this point I only have the one drive connected. I tried both X and Z separately. I tried the old 48v power supply. Nothing worked.

Spent days reading past forum threads. In the thread "Leadshine Connection Problem", it was suggested that there may be alternate ways of wiring:
OPTION 1 - Invert step and direction . Didnt work
OPTION2 - Pul+ to DB25 step Dir+ to DB25 Dir Pul- and Dir- to DB25 com. Didn't work
OPTION 3 - Use Header. 5v to Pul+ Dir+ Ena+. Pul- Dir- Ena- to Header . I tried this with and without Ena inverted. When I try jogging, I get a 9031 drive fault and the motor unlocks. It behaves like either the Pul or Dir is crosswired to Ena. I dont have a scope so I can't see what is actually happening. I removed ENA from equation and it still doesnt move.

The report supplied is as the machine sits now wired to option 2. Steps set to 1600.


What do I try now? I'm open to any of the solutions. Using the headers would be great. The Option 3 solution suggested says to wire 5v to the +s . Why wouldnt it be 24v? I thought the headers used 24v? I didnt try it out of caution until I got your input.

Any help is greatly appreciated. I note that there are multiple threads here on this driver but none of them close off with a success story?

Did you set the selector on top of the CL86Ts to 5V from the default of 24V? Is SW7 set off?

The H2 and H3 headers on Acorn are open collector outputs. They will work with whatever voltage signals they are supplied up to 50V DC. It is viable to use them for 5V signals although the DB25 should be more reliable since those outputs are 5V line drivers.

they work, follow the centroid schematic https://www.centroidcnc.com/dealersuppo ... 207.r1.pdf

The drivers from factory are set to 24V, for 5V you must set the switch to 5V on the drivers...

Uwe

I have one drive (#1 X) wired as per s15207. I have a wire from the Meanwell 5v terminal to Dir+ and a jumper from there to Pul+. That is a parallel circuit as per the schematic. I tested and have 5.06v at each terminal. Pul- goes to pin2. Dir- goes to pin 3.

The 4 wire cable from the stepper and 6 wire cable from encoder matches the schematic and colours in the manual. They go to the pins described in the schematic. Same with the encoder cables. The alarm cables are wired as per schematic except I use IN5 instead of IN4. The setting is correct for this change. The 5v selector switch is in the 5v position.




The cl86t manual says the maximum input rate is 500Khz. That option is not in the CNC12 setup. I tried 200,000 and 400,000. I tried 4000 pulses per revolution as I think that is what the encoder is.

None of this worked. Motor locks but doesn't turn.

How to set Outputs in the setup? In this example, Output5 has two different values for NO and NC sides of the relay.
The setup tool only lets me pick one. What do I do?

With Drive Fault they will not move. If there is no Fault on the drives invert the input

Uwe

I intentionally switched DriveOK from NC to NO or NO to NC (forget which way) and did the same on SpindleOK to force an error while trying to understand how they work. I have tried every combination of the invert check box.

With no faults, I have no motion.

Is the drive spinning with the tuning software?

Uwe

What is 'tuning software''?