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Messages - Darko

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1
Mach4 General Discussion / VFD wiring with MB3 and ESS
« on: June 07, 2021, 07:53:43 PM »
Hi everybody,

I'm wondering if I can get some help from somebody who might have a similar setup.

For the past year I have been slowly putting together my CNC and with the help from all the forums including this one, I was able to actually put this thing together. So far everything is working amazingly well. I can load up a program and cut a piece of wood (that's all I have tried so far just cutting hardwood and lumber no aluminum)

The way I have this thing working is, I will turn on the spindle manually on the VFD and then go to my computer and start the program. All of that is working with no issues.

What I would like to try to do is wire the VFD to my MB3 board and use Mach 4 to control spindle coming ON at the beginning of the program and turning OFF on the end of the program. I have tried to find some information online but the few things that I have found I did not quite understand, or the person had a different controller board then I have.

I am wondering if there's anybody here that has a similar setup to mine and can share how exactly they wired their MB3 to a VFD and what settings did they use in Mach4 to have this thing working correctly. I see on my MB3 manual where I must wire the VFD but I am not sure what terminal on my VFD I have to use, and other than enabling Mach4 settings what else must be done to have this thing working properly. If there's anybody that can give me a help with wiring this thing correctly it would be greatly appreciated.

Darko

2
Hi Tomas!

Thanks for your reply.

Yes, I am originally from Croatia and I live in North Carolina, USA.
Are you also building a CNC machine or you already have one? Electronics is not my thing so this has been a struggle for me but I think I'm getting closer. Made a little more progress on the control box. It looks a little neater. Got the right rotary switch this time. I'm waiting on the VFD filter now.

I actually connected, wired the spindle and VFD today. I used the instructions and settings that came with the spindle. Do you by any chance know what settings I possibly need to adjust to not have any problems down the road. This is what I have now. My spindle is 2.2kw 220v water-cooled.

PD000=0        ( for Parameter unlock ( 1 ) for Parameter Lock)
PD001=0        (1 For Remote Control)
PD002=1        ( 1 For 0-10v Terminal Control or Remote Trim Pot Control )( J1 Also Needs to be set for Terminal Control )
PD003=400
PD004=400    (base frequency)
PD005=400    (max operating frequency)
PD006=2.5     
PD007=0.50 
PD008=220    (Motor Rated Voltage, If you have 120v spindle then set to 120v )
PD009=13     
PD010=6.5     
PD011= 0      (120)   ( 100 Minimum Setting with Quality VFD, 120 is Safe)
PD013= 08     ( is for Factory reset, Only use this to set VFD to Factory Default Settings)
PD014=10      ( Adjust to suit)
PD015=10      (Deceleration=12 (Adjust to suit)( PD15 is ignored IF PD26=1 Then the Spindle will Coast to a Stop)
PD070=1        ( This may need to be set to 1 if Control Voltage is 0-5v )
PD072=400    (high analog frequency)
PD073=0        (120)    ( 100 Minimum Setting ) 
PD141=220    ( Motor Rated Voltage ) (120 for VFD Rated for 120v )
PD142= 9       ( 220vSet for your motor Amp Rating 2.2Kw Spindle 9 amp
PD143=4        ( Motor Number of Poles)
PD144=3000 (Max Motor RPM) =3,000= (24,000)

 The last thing, Do you know how to wire the VFD to MB3/ESS board? It would be nice to control the spindle with the MACH4!
Right now I got it controlled with a knob on the front of the VFD

https://www.youtube.com/watch?v=GSfnQe3AjkE

Where in Croatia do you live? I am originally from Zagreb.

Pozdrav!

Darko



3
Hi everybody,

I am making progress on my DIY CNC, I have everything hooked up and it seems to be running well. I have actually made my first cut in three-quarter plywood. My feeds and speeds are off but nevertheless, I didn't break anything.

Now I wanted to finish building my electronics cabinet and make everything somewhat organized, but I am struggling with finding the right components to finish everything. I am not familiar with the terminology that those who have experience know about.

If you look at the attached picture you will see where I'm at currently so here are my questions:

I live in the USA, I will be running 220 electrics to the box. What kind of the main switch should I put on here? I see some people use Rotary switches like this one.

https://www.amazon.com/VictorsHome-Changeover-Positions-Terminals-Universal/dp/B07MZ756R2/ref=pd_sbs_7?pd_rd_w=WoyiN&pf_rd_p=de2765fe-65e5-4a88-aaad-a915dea49c67&pf_rd_r=3RB03C1HW1RCQAKD508A&pd_rd_r=63315de4-b7f6-40df-ba13-071ccc7095b4&pd_rd_wg=CV2Bj&pd_rd_i=B07MZ756R2&psc=1

 
I bought one of these, but I think I bought the wrong thing because the switch end up being a transfer switch not ON/OFF switch

Should I have any kind of fuses where the main power is coming into the box?

Should there be a fuse between the power supply and servomotors in case the power supply dies wouldn't want anything happening to those servomotors?

What about the VFD I read on forums that I should have a power line filter like this one.

https://www.mouser.com/ProductDetail/TDK-Lambda/RSEN-2030L/?qs=F9A14TELRMvnoTorVZ7FoA%3D%3D

Any other suggestion anybody might have would be greatly appreciated.

 
Machine video here
https://youtu.be/zRLgxlfZYLQ

 
First cut here.
https://youtu.be/iFmaT9iPPbk
https://youtu.be/HJTgaQTzUlU

Thank you

Darko




4
I am slowly inching forward in building my first cnc.

I'm using ESS/MB3 combo with clearpath CPM-SDSK-3421S-RLS motors.

I am almost finished installing hard stops. I have temporarily wired all motors to the board, and tuned all motors with clearpath software. I have also calibrated the distance in motors so one inch in mach4 is 1 inch on the table.

What I would like to do primarily is repeated jobs (G54), so my question is;

How do I set up and wire the limit switches, home switches, and Estop?

I am assuming I need 6 limit switches and 3 homing switches. 2 switches per axis for limit and 1 per axis for home. Should estop be wired directly to the MB3 board or wired with limit switches?
How do I wire HLFB + and - from motors for homing?

I was going to use these switches for limit and homing, Is this ok?

https://www.amazon.com/ME-8108-Adjustable-Roller-arduino-Switch/dp/B07D48YKL4/ref=sr_1_36?dchild=1&fst=as%3Aoff&qid=1604807485&refinements=p_72%3A1248921011&rnid=1248919011&s=industrial&sr=1-36&th=1

What is the best way to go about this? Electronics and electrical schematic is not my thing so I'm struggling reading and understanding ESS and MB3 manuals

A short video of machine working.

https://www.youtube.com/watch?v=zRLgxlfZYLQ&feature=youtu.be

Appreciate any help I can get to get this going!

Darko



5
General Mach Discussion / Re: DIY CNC with ClearPath Servos
« on: November 07, 2020, 01:12:59 PM »
Thanks, TPS,

This morning I went and ran clearpath servo calibrating software again and this time everything is working great, super quiet.
Had no idea how quiet motors are, rails and ball screws are louder than motors! Super happy!


Thanks for your help

Darko




6
General Mach Discussion / Re: DIY CNC with ClearPath Servos
« on: November 06, 2020, 06:45:57 PM »
TPS Thank you very much for your help!

I did everything you suggested and I got all motors temporarily connected and working.
However, I ran into a problem.

I configured and tuned the z-axis motor according to Clearpath instructions and it is working great and it is very quiet.
I did the same for the x-axis and everything is running great.

I could not run tuning for y1 and y2 motors so I loaded up the X tuning file and used that on my Y motors, is this ok?
Is there a better way to do this, I feel like, if I was to run Y tuning with one motor attached it will destroy my frame. The tuning process seemed violent and loud.

I ran into a problem that I can't solve

My Y1 is on the left side and Y2 is on the right side
The y2 seems to be running good but Y1 is making this super loud noise when I'm trying to rapid across the table. Mechanically everything is fine, the motor is turning correctly. If I stop, the noise does not go away, if I touch the ballscrew i can feel the vibration and if I grab it firmly the loud noise stops. This repeats next time I move across the table.

This only happens on the left side Y1 spot. I tried swapping power cables and signal cables, I tried swapping motors. I temporarily grounded motor chasey and block that is holding ball screw and this did not help

I got super excited and purchased limit switches to install next but now I feel like I should not go any furder until I resolve this.

Help :(

I have a short video here so you can see what is happening.

https://youtu.be/5LL_Z5-7wwA

Darko

7
General Mach Discussion / Re: DIY CNC with ClearPath Servos
« on: October 09, 2020, 10:12:53 PM »
Thanks, TPS.
I will try this weekend.

Darko

8
General Mach Discussion / Re: DIY CNC with ClearPath Servos
« on: October 08, 2020, 07:35:48 PM »
Thanks for your reply TPS.

Yes, I got the same thing from the manual but i do not know anything about electronics and schematics.

I think I know how to connect the power to the motors now, I will use a block to connect all 4 motors and wire it then to the power supply.

On the MB3 board, for example, Z-axis has ZS+  ZS-  ZD+  ZD-

If i understand you correctly i wil connect:

3 Input A+ to ZD+
7 Input A- to ZD-
2 Input B+ to ZS+
6 Input B- to ZS-

Does this looks correct so far?

https://imgur.com/VCNvequ

I'm not going to connect HLFB + and - for now. I would like to use home/limit switches in the future. Hopefully once this basic stuff is connected and working.

"you will Need to wire Enable+/Enable- do a normal Output"

I don't understand what this means. Do these two have to go to one of the input or output circuits?

https://imgur.com/ydQvyZm

Thank you for your help

Darko






9
General Mach Discussion / DIY CNC with ClearPath Servos
« on: October 07, 2020, 06:51:46 PM »
Hi Everybody,

Looking for some help with wiring the Clearpath servos. I am building my first DIY CNC and I am struggling with the correct wiring. I'm not good at reading and understanding schematics (I am a woodworker) so if somebody can explain this to me like I'm a 5-year-old.

I have Ethernet Smooth Stepper (ESS) attached to the MB3 board and I have a 1000v toroidal power supply

https://www.antekinc.com/ps-10n80-1000w-80v-power-supply/

I need to use 4 motors, Z, Y, Y, X. Two Y motors should be running parallel with each other. The MB3 board has 4 connections for each axes. But Servo motor is showing 8 wires coming out for connection to MB3 and 4 power connections to the power supply.

The Clearpath servo manual is suggesting to wire power to servos in a star formation so I'm assuming each wire going directly from the power supply to each motor. I'm also assuming the RED wire going to "+" and the BLACK wire going to "-" on my power supply.

https://imgur.com/gallery/egK1uR1]https://imgur.com/gallery/egK1uR1]https://imgur.com/gallery/egK1uR1

As far as controlling the motor you can see in the picture that the Z-axis has 4 connections on the MB3 board but the servo motor has 8. How do I connect these 8 wires?

Is there somebody that has a similar setup and can share pictures or drawings of motor connections?
I looked at the manual from ESS and Clearpath and I do not understand it

Thanks

Darko

10
Hi,
it has recently come to my attention that there may be a better choice of servo than the B2 series Delta I have recommended.
I personally have bought four B2 series Delta's and am EXTEREMLY impressed. I have one 400W example that I bought
to experiment with and fit in place of one of the steppers in my mini mill, and three 750W (one braked) B2's for a new bulid
mill I'm working on.

The B2 series servos have a native 160,000 count per rev encoder. A later model Delta servo, the A2, has a native 1,280,000 count
per rev encoder but more importantly it is 'dual sensing'. Either servo has more encoder resolution than I will EVER need but I am
impressed by dual sensing.

It means that the servo drive monitors the servo mounted encoder as usual but can also monitor a second encoder hooked to the 'load',
like a linear scale for instance, and incorporate it into the positional control loop. They cost only an extra $50 more than I paid for
the B2 series servos. I actually have no need of this extra capability but if I had known that I could have had it for a little extra
I would have bought them.

There is an even later model, the A3 series, which have a 24 bit absolute multi-turn encoder with battery backup. This means that when
the servo is powered up it will recall exactly where it is, both within one revolution but within +- 128 turns of its nominal home
position....no need to 'home'. They are not yet widely available in the Ebay channels I tend to use so would expect to pay a premium
for them that I can't justify.

These features are simply not available in Clearpaths. You are right, Clearpaths are amongst the simplest of modern AC servos to set up
but that ease of setup has cost the flexibility of application that other brands have.

Note also that ALL servo manufacturers tend to have similar features, if one manufacturer introduces market leading
'dual sensing' say, then a few months later they will all have it.

When I got my first B2 series Delta I intended to program the drive by 'button pushing' on the drive itself. It can be done but
is a very tedious and error prone process. In the end I bought a genuine Delta accessory, a programming cable, that then allowed
me to use the Delta supplied PC freeware to program the drive....so much better!. Just wait until you see the plethora of tuning aids
that comes with the software. Highly recommended. Suggest you allow an extra $50 or so in your budget to get a cable, you only
need one to program as many drives as you have....its well worth it.

Craig

I am fairly new in-home CNC hobby machines and still have a lot to learn so I'm not familiar with everything you are mentioned here but hopefully, I will catch up.

Thanks for recommending ESS. I'm watching youtube videos now. The ESS/MB3 and MACH4 looks like a good combination.

Can you recommend limit and home switches?

My understanding is I should have them separate. So I should have 8 limit switches (2 per axes), and 3 home switches. Total of 11 switches. Does this seem correct? Should my limit switches be mechanical, and home switches magnetic? In industrial machinery when the machine is powered up it finds X0 Y0 Z0 Machine coordinates, from that point I use work offsets to get around (g54,g55,g56...). Is home switch similar to work offset? In that case, I would not need a home switch because my work offset would change according to my job I'm doing.

Little bit confused about this.

Darko


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