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31-07-2017 #1
Thanks, I see what you mean, there are so many parameters that could have been changed. Having looked through the manual a little further I think I need to short pin 34 and 35 before the drive will do anything at all.
It's critical that I get the software interface to work - I think that there's something funny going on with the USB-RS232 converter I have, the Yaskawa software seems to think it's a RS-422 port.
I just need to keep buggering-on buggering-on until I get there.
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31-07-2017 #2
you need to keep on eliminating reasons and i can tell you straight away that i would never use USB-RS232 converter for connecting to servos, or anything. . You need a normal. PC with a normal PCI port and an adapter there. Or even better, a PC with a com port that you could control from bios.
Standard RS-232C RS-422A
specifications
Communications
method
Asynchronous (ASYNC)
Baud rate 2,400 bps
Start bits 1 bit
Data 8 bits
Parity None
Stop bits 1 bit
That above is from your servo drive manual. If baud rate is not set at Com port same same, communication will NOT ever happen
And most of all check that manual https://www.fa.omron.com.cn/data_pdf...8d-u.pdf?id=68 for the proper connection to the drives from the PC side . Check your cabling if is right.
So in other words from page 1-7 seems you need Null Modem Cable https://www.decisivetactics.com/supp...h-serial-cable
Last edited by Boyan Silyavski; 31-07-2017 at 05:26 AM.
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31-07-2017 #3
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I do have a PC with a RS-232 port and have tried connecting with that, but I didn't check any of the settings. I'll check the cable too.
Last edited by Clive S; 31-07-2017 at 11:05 AM.
..Clive
The more you know, The better you know, How little you know
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31-07-2017 #5
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31-07-2017 #6
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31-07-2017 #7
OK, got the software to talk to the driver thanks to your diagram Boyan - many thanks. USB-RS232 working well - software thinks it's 422, but I'm not splitting hairs.
Do you have a source for the manual? - it's not the same as the two I already have and may contain more detail. The manuals I have don't show pin numbers for the CN3 port for instance.
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31-07-2017 #8
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01-08-2017 #9
Many thanks for everyone's input. Managed to get the software talking to the driver and to run the motor. Software works very nicely. Loads of torque from tiny little motor - very impressive. I think my Leadshine stepper drivers may be up for sale shortly! Next step to configure the parameters and get Mach3 running them.
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01-08-2017 #10
As far as configuring Mach3 goes, as it's a step/dir servo, it's just the same as configuring a stepper. Set the correct step/distance figure, maximum speed, and fiddle with acceleration.
Avoiding the rubbish customer service from AluminiumWarehouse since July '13.
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