berger Lahr servo

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27 Feb 2012 09:18 #18118 by freemade
berger Lahr servo was created by freemade
Hello, i have got some berger lahr servos from my employer. The type is TLC532. But the servo controller have a Profibus (rs485) and a +/-10V analog input. Is there a possibility to connect these controller to EMC. My job is electronic development. So i have experience with µController and electronic.

Thanks freemade

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27 Feb 2012 09:33 #18121 by cncbasher
Replied by cncbasher on topic Re:berger Lahr servo
using analog +/-10v inputs then the answer is yes , use Mesa or pico-systems interfaces for analog servos is probably your best choice
profibus is not supported .

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27 Feb 2012 10:48 #18124 by freemade
Replied by freemade on topic Re:berger Lahr servo
Thank you, how expensive are these boards? Is there an other way to send out the speed signals (single or multible RS232) In this case i can translate the rs232 data with a µcontroller to +/-10 with a opamp.

thank you

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27 Feb 2012 13:36 - 27 Feb 2012 13:39 #18136 by Rick G
Replied by Rick G on topic Re:berger Lahr servo
Take a look here for Mesa...
www.mesanet.com/index.html

I use a 5i20, the 5i25 is new and is supported here.

Rick G
Last edit: 27 Feb 2012 13:39 by Rick G.

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27 Feb 2012 15:14 #18145 by freemade
Replied by freemade on topic Re:berger Lahr servo
thank you my question again is Is there a way to send out the emc speed value over a bus system?

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27 Feb 2012 15:37 #18148 by PCW
Replied by PCW on topic Re:berger Lahr servo
Yes, there are such systems but for EMC, they need to be real time
(RS-232 is likely too slow. Modbus is not real-time and most Ethernet
schemes are not real time either)

In addition to the analog voltage, the encoder signals must be brought back to EMC,
also in real time (since EMC is closing the servo loop)

Ethercat is one possibility but likely quite expensive for a combined
analog out/encoder in I/O set .

Because of the real time requirements, most of EMC supported board sets use fast, low latency connections to the CPU (Either EPP or PCI bus)

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28 Feb 2012 13:13 #18177 by freemade
Replied by freemade on topic Re:berger Lahr servo
Hello, thank you for your help.

My sevo amplifier have also a encoder input. but now after you explaind to me i think it is better to connect the encoder to EMC is it?. Than EMC is closing the loop.
Is that right?

If i bought a 5i25 (these board is not expensive) do i need a break out board also?

Thank you Freemade

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28 Feb 2012 13:29 #18179 by BigJohnT
Replied by BigJohnT on topic Re:berger Lahr servo
For a servo machine the 5i25 + cable + 7i77 is what you will need. The 5i25 plugs into a PCI slot and the cable connects to the 7i77 card. You connect the 10v +- and the encoder to the 7i77 as well as any I/O you have.

John

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