I have worked on Siemens controls and drives for years.
It depends on how old your Simodrive is.
Do you have a Simodrive 611U or an earlier 611 drive?
They had some really old drives in the early 90s that were also called
611's but they were not like the later 611's.
The later drives were usually in a rack format and they usually ran off
one common DC bus power supply.
However it was possible to have a standalone power module with an
onboard controller in the later drives.
To my knowledge, most were setup in velocity mode and provided encoder
feedback, even if the motors had resolvers.
However, there were a lot of variants. Hopefully you have some common
drives.
Do you have a 9 pin serial port on the front of the controller?
If so you may be able to communicate with it via the Simocom software.
You should not need a special cable if it is a 9 pin connector. If it
is female, use a rs232 extention cable.
If male, use a null modem cable.
I believe some of the much older drives had 25 pin com connectors.
However, I never run into those any longer.
Most people find the config software fairly confusing. The 611 drives
after the early version were extremely flexible drives (to a fault).
If you want to tweak the drive, the first thing you should do is to save
your existing configuration to a computer file.
Siemens won't talk to you about those drives unless are willing to pay
for support. They have been obsolete for a long time now.
But that is better than most vendors.
The amount of documentation available for "611" drives was/is fairly
overwhelming and that is because they were made for a long time and they
evolved.
Here are some links:
It appears that you can still download the software for free.
https://support.industry.siemens.com/tf/us/en/posts/is-it-possible-to-connect-to-simodrive-611-using-simocomu-13020201-and-usb-rs232-adapter-or-do-i-need-a-special-cable-for-this-quest/80653/?page=0&pageSize=10
https://support.industry.siemens.com/cs/search?search=SimoComU&type=ProductSupport%2CCatalog%2CCertificate%2CCharacteristic%2CDownload%2CDownloadSoftwareArchive%2CExampleOfUse%2CFaq%2CManual%2CProductNote%2CSlk%2CForum&lc=en-US
https://support.industry.siemens.com/cs/products?dtp=Download&mfn=ps&pnid=13259&lc=en-WW
https://support.industry.siemens.com/cs/document/109769939/simodrive-611u-v14-03-02-package?dti=0&pnid=13259&lc=en-WW
BTW, they were really good drives. They are still running thousands of
machines. The problem now is replacement parts. If you can find
them, they are expensive, and they were never cheap to begin with.
Dave
On 12/19/2020 4:40 PM, Jon Elson wrote:
Has anyone interfaced a Simodrive 611 servo system? I did find the
manual online, but there is a LOT of info, and it is not really easy
to follow.
I see it has several analog inputs, so I'm thinking that the
traditional scheme, CNC control sends analog velocity command to
drive, drive receives encoder signals and provides quadrature info to
CNC control is possible.
To change configuration of the drive, you need a program from Siemens
to run on a PC. Does anyone know if this program is freely available,
or you have to pay for it?
Thanks for any info,
Jon
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