EtherCAT i/o board for spindle, estop and mpg

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04 Aug 2024 22:16 #306948 by avive
I'm assembling a machine on EtherCAT. All the mechanics are ready, checked on stepper motors while the servo motors are still on the way. But the spindle is available and there was a question of connecting it. The speed can be controlled by 0-10 volts or PWM. Plus, I need to connect Estop and MPG. I'm considering the following options:

1. Since I have a computer with two network ports, I can connect RP2040 via Ethernet to one of them. Cheap and angry, but I would like to do everything on one technology.

2. Noname EtherCAT i/o board from Ali Express (but which one?)

3. Beckhoff EK1828 coupler with 4 digital inputs and 8 digital outputs.  www.beckhoff.com/en-en/products/i-o/ethe...-coupler/ek1828.html  But is it possible to issue a computer-generated PWM signal through it and receive feedback from the spindle about the speed?

I would like to do with one device that covers all needs except servos. What are your recommendations, colleagues?

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05 Aug 2024 03:29 #306960 by onceloved
You need el5102 module with two encoder interfaces, one for spindle and one for handwheel AB phase

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05 Aug 2024 07:46 #306973 by rodw
I think this would be a good I/O module but you would need to create the generic xml which is not hard There may be an xml file here somewhere.

www.aliexpress.com/item/1005004377766525.html 

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05 Aug 2024 08:11 #306974 by avive

You need el5102 module with two encoder interfaces, one for spindle and one for handwheel AB phase

Yes, I can assemble everything I need using Beckhoff modules, but it will be very expensive.

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05 Aug 2024 08:13 #306975 by avive

I think this would be a good I/O module but you would need to create the generic xml which is not hard There may be an xml file here somewhere.

www.aliexpress.com/item/1005004377766525.html 

Could you please write the name and model? There is no product at the link.
 
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05 Aug 2024 08:38 #306979 by rodw
Odd, it works for me CATIO-A
 
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05 Aug 2024 08:45 - 05 Aug 2024 08:52 #306980 by avive

CATIO-A
 

Thanks! Looks like I found it.
Last edit: 05 Aug 2024 08:52 by avive.

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05 Aug 2024 09:34 - 05 Aug 2024 09:40 #306982 by avive
In case anyone needs it, here is the current link to the product:
aliexpress.ru/item/1005007328938566.html

And also attached the archive with documentation I found:
www.gzyanwei.com/upload/Files/2022/11/21/Ecat-IO_V2.zip

This board has one input for the encoder and two inputs for counters. The first input will definitely be occupied by the spindle. Do you think it is possible to use the counter input for the MPG? 
Last edit: 05 Aug 2024 09:40 by avive.
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05 Aug 2024 10:13 #306983 by rodw
I thought so but not sure how that maps to A+ and B+

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05 Aug 2024 14:09 - 05 Aug 2024 14:13 #306998 by onceloved
The encoder input of this card is in the form of a counter. There is no AB phase input. I have studied it before and gave up. Now I use the rv901 fpga card with six encoder inputs and more than a dozen input and output
 
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Last edit: 05 Aug 2024 14:13 by onceloved.

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