[kreutz]

U answered your own Q Kreutz.

lets have a completely protected board, may be it adds a dollar or more but no comparison to a human life right!

RGDS
Irfan

Thanks, I was referring to a generic external B.O.B. board needed for LPT (parallel) port interface.

I included a B.O.B. functionality on another project (Bipolar Micro-stepper 4 axes set) but, in that case, it made sense to offer a complete package. I also took the necessary steps to make sure my interface board would not compete unnecessarily with some business offering B.O.B. boards, by including the translators on them, so, making it an specialized board only suitable for my projects.

In this case, I don't feel bad modifying the UHU board to extend its functionality, the original board was already public domain, and being a DIY board it really does not compete with established businesses. In any case, it will produce a healthy push on those businesses, will put some pressure (on them) to keep improving their products, and that, in fact, will benefit everyone in this field.

Regards,

Kreutz.

[contactirfu]

/?

[MrWild]

Whatever gets the job done without adding to your time burden. I think anyone with the desire to run higher end servos is going to have a higher end BOB. Mine is a Campbells design. I also have a CNC4PC opto isolated for a stepper controlled router. A non opto BOB just seems foolish with so many good ones available and opto chips so cheap for DIYs.

[MrWild]

Kreutz,

In keeping withthe nature of this "Beer ware," is it possible to send you some beer or wine? There are alot of micro breweries in my area and I'd like to show gratitude in some way.

[kreutz]

Kreutz,

In keeping withthe nature of this "Beer ware," is it possible to send you some beer or wine? There are alot of micro breweries in my area and I'd like to show gratitude in some way.

Thank you, MrWild. It would be nice.

Regards,

Kreutz.

[tenmetalman]

Kreutz,
Please incorporate the above feature. some B.O.B. have the E-Stop feature, a few of those have the feature optoisolated. But not All by any means. It adds to the Drive Board & machine's safety Thanks Again
Paul H a.k.a Tenmetalman

[kreutz]

Kreutz,
Please incorporate the above feature. some B.O.B. have the E-Stop feature, a few of those have the feature optoisolated. But not All by any means. It adds to the Drive Board & machine's safety Thanks Again
Paul H a.k.a Tenmetalman

Thanks, Paul;

The feature is already on the final board (Rev1.0). I am checking the PCB layout and trace routing in order to make sure is OK before sending the schematics and Gerbers. I don't know if I am going to send them to the fab, will probably leave that task to Smarbaga and You. I don't have any use for those boards now, and have some expenses to do for the 4 axes Bipolar Micro-steppers' first 25 kits run (a few thousand $$).

Regards,

Kreutz.

[kreutz]

Modified UHU for High Power Servo Motors, Final Assembly Drawings Rev1.0

I decided to go ahead and add the optoisolated E-Stop feature. It also has the possibility of using an external +5 volt power supply isolated from the PC and the Motor ground, if you don't want it just solder a couple of traces together in order to use the PC +5 Volts and Ground (from the USB port) by means of a USB connector on board. That USB cable will power the isolated RS-232 interface when Tuning the servo.

If you are not supplying the E-Stop circuit from the USB cable it can be disconnected after tuning the PID parameters.

E-Stop opto-couplers are TLP127 (qty=2), the RF isolated interface uses an ADUM1201ARZ-RL7, Those are SMD, but big enough to be soldered with a normal soldering iron (with a fine tip).

Step and Direction signals use the same opto-coupler used on the original UHU board. I had to use SMD components in order to keep the board dimensions at 5" x 6". Added two 3 position 5 mm pitch connectors for the low voltage interface. Another 5mm pitch connector (2 positions) is used for the +15 volts power supply input. (you can use those 5mm pitch connectors that can be attached together and in that case you need 4 two position connectors (3 together).

[kreutz]

Bill of Materials

[DennisCNC]

kreutz,

do you have a prox. cost of all the materials needed for one board?

Thanks

[kreutz]

kreutz,

do you have a prox. cost of all the materials needed for one board?

Thanks

No, at this time, I don't. Would have to go through all Digikey, Newark, and Mouser Electronic's invoices. I lost my component's database when my computer crashed some time ago, luckily I had this project's schematics and PCB files printed just before the crash, so it was less painful to recover. I will post the part number for all the critical components as soon as I have some free time.

Regards,

Kreutz.

[kreutz]

Modified UHU Servo Controller for High Power Servo Motors. PCB

[rokag3]

thank you, Mr Kreutz
but can you change the color of the page 3 of the document UHUREV1.0PCB.zip
because yellow it's invisible on my printer and my screen is well
sorry if i abuse
merci

[rokag3]

hi,
OK i copy it with paint shop make a raster and get the blue mask
it work
very populated board
also i do not understand the little difference in page 7,8,9,10 ?
is it different version ?

[kreutz]

Replaced yellow color by black on top overlay.

The higher page count correspond to drill files, solder paste masks, etc.

[jpieszala]

Hello, I was reading this post reguarding the high power boards, Im in need for some 160 v 14 amp, and 3 213 v 18 amp boards I have some big iron on the floor, the machines run well but the Fanuc controlllers are week for the day. We are running a 80 volt plasma on 3 g20 geckos and mach 3 , This is where i want to be with these other machines. Our 3 dim Router tool paths wont fit in the buffers of the older controls , I would like to be a betta site for such a product. Im ready to gut these machines today.

Thanks Jp

[luckym]

Hi all.
What is the max step frequency for the UHU controller. I've read, the max freq. for encoder is about 200kHz. Is the same for step input?
thanks for reply.
michal

[luckym]

Hi all.
What is the max step frequency for the UHU controller. I've read, the max freq. for encoder is about 200kHz. Is it the same for step input?
thanks for reply.
michal

[kreutz]

Forgot to say that the PCB must be 2 Oz Cu double side.

[rokag3]

Thank you Mr Kreutz,
Well, if someone decide to produce it , I am ready to order one at once.

Mr Sobaga can you please send me a kit of components for my ,since now on becoming old, UHU that i am going to use at 75 Volts max the 1 hcpl2631, 2 ir2184, and 4 irfp264 and some (better )diode D5,D7,D8,D9,D10,D11,D12,D13 if any send me a mail with the cost , i use PAYPAL
thank