UMI-7764 with Simudrive 611 Universal

[uuuhl]

Hi there,

we`re currently trying to connect a NI UMI-7764 to a 1-axis motion system controlled by a Siemens Simudrive 611 controller.

We would be glad to find anybody providing information on how to connect both these interfaces, regarding pin alignment and/or available options.

Thanks, Ulrich 

[Jochen]

Ulrich,

could you please provide some information about this drive? A datasheet with the pinout of the drive would help a lot.

Thanks,

Jochen Klier
National Instruments

[uuuhl]

Jochen,

thanks for answering that fast.

I foud the online documentation on the Siemens page here:

http://support.automation.siemens.com/WW/view/de/28711782

Furthermore, I read a  thread you also replied on. The guy had some trouble getting his Simodrive hooked up to the UMI. It wasn`t quite what I was looking for, but at least it showed me that both systems fit each other.

Thaky you in advance,

Ulrich

[Jochen]

Wow, that's a manual! Almost 1000 pages...
I hope you understand, that I can't work through this huge manual, so I'll give you some general hints:

1. Don't forget to connect an externl +5 V power supply to the UMI-7764.
   
2. Connect the AOUTx to the +/- 10 V input of the drive
3. Connect the encoder signals (ENCAx, ENCBx,...) to the appropriate outputs of the drive. Please note, that the phase relation of Phase A and B are not standardized, so you may need to change the polarity of the phases in NI-MAX.
4. Connect the INHOUTx to an ENABLE input of the drive. This allows the NI motion controller to turn off the power of an axis completely if necessary.
5. Connect the limit switch inputs (FWDLIMx, HOMEx, REVLIMx) to mechanical limit switches if applicable.

These are the most important connections. Please refer to the manuals of the drive and the motion controller to find out, if the voltage levels are compatible.

Here are some more general pieces of advise:

1. Use the drive in torque mode. This makes tuning easier.
2. Here you can find help for tuning your system.

I hope this helps,

Jochen Klier
National Instruments

[uuuhl]

Jochen!

Thank you so far, we connected the UMI to the Simodrive the way you mentioned.

Unfortuneately, we're not getting the motor to move. The only thing that happens is an awful noise before we slam the e-off.

As far as we found out, it's a software-based problem. Looks like the UMI puts an AC into the DC-in oft the Simodrive.

Any ideas about that problem?    

[Jochen]

This sounds like a tuning problem. Before initializing the board you should decrease the values of Kp, Kd and Ki to very low values (e. g. Kp = 1, Kd = 0. Ki = 0). Then you should start with the tuning process as described in the tutorial that I have linked to my last post.