Acorn to Fuling DZB280B002.2L2DK_VFD Wiring Questions

[Reedk22]

Good morning all,
I am a novice CNC router owner, in the process of switching over to an Acorn control board from an old WIX HC USB control board that originally came with the CNC router. I'm looking for a little assistance in wiring up the VFD here.

Photos of the Machine and components in the original (before I started messing with it) state are in this google photo album:

I have been following the Acorn user manual titled: centroid_acorn_install_manual.pdf, and have had good results with the following so far:
1. configuring my PC
2. bench testing
3. hooking up stepper motors to the DB port (I'm able to jog X, Y, Z axis. 4th rotary axis still not responding, may need to upgrade to pro software?)
4. hooking up proximity sensors to H4-In1 through In4
5. wiring the E-Stop
6. jumping +24v from H9 to H4.

My next step is to wire up the VFD to Acorn and this is where it seems that I am a little stuck.

So far, I have compiled the following information regarding the VFD and possible wiring configurations:

1. Fuling manual for the 200 and 300 series VFDs (manual is titled: Fuling DZB200_DZB300 Inverter User Manual.pdf)

2. wiring schematics that I found on the centroid website by searching the words "acorn vfd".
2a. The first wiring schematic is titled: S14983.r3.pdf and is the Generic Acorn to VFD wiring.
2b. The second schematic is the closest I could find. It's the AcornSix to Fuling DZB Series VFD schematic titled: s15166.r1.pdf.

Here is a link the a google drive with all of the documentation that I have compiled:
https://drive.google.com/drive/folders/ ... sp=sharing

For reference, here is a photo of the old control board showing how the VFD was wired (it's in the drive too):


Here is a picture of the VFD with Wiring:

Here is a spreadsheet with snippets of the wiring schematics and pages from the Fuling manual mentioned above:


In Conclusion:

The wires coming from the VFD that were hooked up from the factory and I have not found a home for are labeled:
S1 (blue wire)
GND (green wire)
10V (black wire)
AV1 (yellow wire)
ACM (red wire)

Based on my observations of how the old control board was wired and corresponding labels on the control board, these are my assumptions about the meaning of the wire labels:
S1 (blue wire) is "Spin Forward" and would connect to the out4 (bottom terminal of that relay) on the Acorn.
GND (green wire) is Chassis ground? Not needed for the Acorn?
10V (black wire) is 10v power? Not needed for the Acorn?
AV1 (yellow wire) is "0-10V DC" and would connect to H8 "AN OUT" on the Acorn.
ACM (red wire) is "0-10V COM" and would connect to H8 "AN GND".

And I'm out of wires coming from the VFD...

The Acorn_rev4, Generic VFD schematic is what I have been relying on for the above assumptions, and it shows a few connections in addition to the ones I just mentioned (that I don't have wires for) coming from the VFD:

"VFD Common" going to the relay board on the Acorn (OUT4, middle terminal in my case). I don't know if this is needed or where to bring it from? I assume that I need this one.

"Spin Reverse" going to relay board on the Acorn (OUT5). I don't think I need this one for my router?

"VFD Reset" goinge to the relay board on the Acorn (OUT6). I don't know if this is needed or where to bring it from?

"COM" going to H9 COM on the Acorn. I don't know if this is needed or where to bring it from?

"Spindle OK" going to H1, IN5 on the Acorn. I don't know if this is needed or where to bring it from?

My two main questions are:
Do my assumptions about how to wire the existing wires from the VFD to the Acorn seem correct?
Do I need to add any or all of the additional wires shown in the Generic VFD Schematic?

Here is a picture of my progress, showing how the Acorn is wired today:

Let me know if any other info would be helpful. Thanks in advance!

[thomsl@mac.com]

I am also trying to connect a Fuling VFD to my router with a standard Acorn board. You have more wires than I do. Coming from the control board on my Industrial CNC Router, I only have two wires. S1 (Forward) Going through a relay. And DCM(Ground) This means I can only turn on and off the spindle. I would like to control the speed. The speed is currently controlled by a knob on the control keypad.

I think you will need to incorporate the E-stop into your connection. I am currently using Mach 3 and have had the spindle stop with an error and Mach 3 continues. this breaks bits. So If the spindle errors it should E-Stop the Acorn. I have yet to figure out what the output would be on the VFD that would be triggered if there were a VFD error.

On page 14 of the Fulling manual, there is a graphic that shows an analog input terminal. I am guessing this is for controlling speed using 10 VDC. I am wondering if VI was connected to the Acorn 10 VDC analog output and the ACM was connected to the ground on the Acorn, would this control spindle speed? I am looking for any agreement on this.

Please let me know if you have made any progress. I noticed that your post was recent.
Scott

[centroid467]

Hello,
Here's what I can suggest based on what you've provided:

* S1 is most likely set to spin forwards considering it is the default setting and the previous wiring. Since this is a router, probably do not need spin reverse. Spin forwards should go to OUT4 relay normally open terminal as on the schematics.

* The green GND wire is necessary and is NOT chassis ground. That is the common/return for the programmable digital inputs (S1, S2, ... , S6) on the inverter. This would be "VFD Common" on Centroid schematics and must be connected.

* 10V black wire is not used with Acorn or any Centroid boards really. The Acorn will drive the analog signal itself.

* AV1 and ACM connections are as you described.

* "VFD Reset" should go to VFD terminal "S4" as that is the default terminal for the fault reset function. You'd want that so you can reset faults on the drive from the Acorn by cycling E-stop or the big Reset button on the VCP.

* COM on Acorn H9 is the power supply ground for the Acorn. You need this to provide the return potential for the VFD's fault output signal. See the next bullet point for wiring advice.

* "Spindle OK" is the fault output from the VFD. This tells the Acorn that the VFD has detected a fault and will trigger the E-stop circuit. The schematic you have found for AcornSix and Fuling DZB series shows it going to the "A-B-C" relay output terminals. Fault output is the default setting for that set of terminals on the VFD. You would wire from IN5 on H1 to the "C" terminal on the VFD. Then, for the return path, you wire from the VFD "B" terminal to the Acorn H9 COM.

[centroid467]

I am also trying to connect a Fuling VFD to my router with a standard Acorn board. You have more wires than I do. Coming from the control board on my Industrial CNC Router, I only have two wires. S1 (Forward) Going through a relay. And DCM(Ground) This means I can only turn on and off the spindle. I would like to control the speed. The speed is currently controlled by a knob on the control keypad.

I think you will need to incorporate the E-stop into your connection. I am currently using Mach 3 and have had the spindle stop with an error and Mach 3 continues. this breaks bits. So If the spindle errors it should E-Stop the Acorn. I have yet to figure out what the output would be on the VFD that would be triggered if there were a VFD error.

On page 14 of the Fulling manual, there is a graphic that shows an analog input terminal. I am guessing this is for controlling speed using 10 VDC. I am wondering if VI was connected to the Acorn 10 VDC analog output and the ACM was connected to the ground on the Acorn, would this control spindle speed? I am looking for any agreement on this.

Please let me know if you have made any progress. I noticed that your post was recent.
Scott

Do you know if your VFD is DZB series or another type?

Regardless of what kind it is, the manual will specify what the default output settings are in the parameters list or elsewhere. For instance, on the original poster's DZB series, the default setting for the relay output "A-B-C" terminals is fault output.

Yes, that is the purpose of the VI and ACM terminals. You will most likely need to change a VFD parameter to change from the front panel knob to the analog input control. For instance, on the DZB series, you would change parameter F0.01 from 0 to 1.

[Reedk22]

Thanks Centroid467! So far, so good. I hooked up S1(Spin Fwd) and GND (Common/Return) wires to the OUT4 relay , and the AVI and ACM wires to H8 on the Acorn. I added a wire from S4 on the VFD to the Out6 relay on Acorn, a wire from the VFD C terminal to IN5 on Acorn and finally, a wire from VFD B terminal to the H9 COM terminal on the Acorn. I'm able to turn the spindle on and adjust the speed using the Digital Read Out in CNC12, the spindle stops when I hit the E-Stop. I'm calling that a win.
Thanks again

[centroid467]

Thanks Centroid467! So far, so good. I hooked up S1(Spin Fwd) and GND (Common/Return) wires to the OUT4 relay , and the AVI and ACM wires to H8 on the Acorn. I added a wire from S4 on the VFD to the Out6 relay on Acorn, a wire from the VFD C terminal to IN5 on Acorn and finally, a wire from VFD B terminal to the H9 COM terminal on the Acorn. I'm able to turn the spindle on and adjust the speed using the Digital Read Out in CNC12, the spindle stops when I hit the E-Stop. I'm calling that a win.
Thanks again

Glad you got it sorted out!

[Leo Voisine]

Almost exactly the same situation I am in. I will very carefully read thru this thread so I can learn. I could use any advice you wish to offer.

[Leo Voisine]

Thanks Centroid467! So far, so good. I hooked up S1(Spin Fwd) and GND (Common/Return) wires to the OUT4 relay , and the AVI and ACM wires to H8 on the Acorn. I added a wire from S4 on the VFD to the Out6 relay on Acorn, a wire from the VFD C terminal to IN5 on Acorn and finally, a wire from VFD B terminal to the H9 COM terminal on the Acorn. I'm able to turn the spindle on and adjust the speed using the Digital Read Out in CNC12, the spindle stops when I hit the E-Stop. I'm calling that a win.
Thanks again

I am going to look into this setup on my machine. Just wondering, did you make any changes to the Fuling parameters, AND, did you set anything in Centroid Wizard.

[Reedk22]

I did not make any changes to the Fulling parameters. Originally, I thought that I would need to, but once I got it wired up properly (see beginning of thread) I just ran the spindle bench test wizard and it was good. On a side note, I'll add that the signal wires coming from the VFD are crossing a lot of other stuff that introduces "noise" the way I have it wired up (see pics). The impact of this is is that the spindle does not get upto full RPMs sometimes. If I lift the signal wires away from the wires that they are crossing, the spindle functions normally. Just another thing to look for when trouble shooting.

[thomsl@mac.com]

Thanks Centroid467! So far, so good. I hooked up S1(Spin Fwd) and GND (Common/Return) wires to the OUT4 relay , and the AVI and ACM wires to H8 on the Acorn. I added a wire from S4 on the VFD to the Out6 relay on Acorn, a wire from the VFD C terminal to IN5 on Acorn and finally, a wire from VFD B terminal to the H9 COM terminal on the Acorn. I'm able to turn the spindle on and adjust the speed using the Digital Read Out in CNC12, the spindle stops when I hit the E-Stop. I'm calling that a win.
Thanks again

I have some clarifying questions regarding your wiring for the Fulling E-stop. I broke down your paragraph into steps. Please respond to the questions I have written. Thanks
.
Steps to wire VFD for E-stop
1. To turn spindle on/off, hook up S1(Spin Fwd) and ACM GND (Common/Return) wires to the OUT4 relay
Question: I am guessing to the N.O. side of the relay, and ACM is common/return)
2. To control spindle speed, connect the VI (there is not an AVI) and ACM wires to H8 on the Acorn
Question: VI should be connected to +, and ACM to common on H8. Correct?
3. To create a reset for the spindle, add a wire from S4 on the VFD to the Out6 relay on Acorn and return to ACM on spindle
Question: Should there be another wire connected to the Out6 relay? From a previous post, it looks like it goes back to ACM on the inverter.
4. Connect the VFD C terminal to the IN5 input on Acorn
5. Finally, a wire from the VFD B terminal to the H9 COM terminal on the Acorn

Results: The spindle should spin forward and adjust speed using the Digital Read Out in CNC12; the spindle stops when an E-Stop is triggered.