Hello,

I would like to ask if anyone have managed to implement some of the technology objects like, speed axis or positioning axis with inverter different from Sinamics porfolio?

I have Vacon drive with Profinet communication to S7-1500 (doesnt have analog output). Vacon is driving a motor (conveyor) with attached encoder to its shaft. There are 20 set positions i need to move the conveyor at.

Please can you tell me what is the most appropriate way to conduct position control with the given HW?

Best regards

Pavel Kostov

If your drive supports the PROFIdrive profil, just select a ( from the TO supported) telegram (e.g. Telegram 3)

If not:

Read at https://support.industry.siemens.com/cs/ww/en/view/109741575

You can use one DB for in and output, define a global DB and select the PD_TEL3 as data type.

You will have to adjust the data to match the needs of your drive, this include the 'simulation' of the status word and the adjustment of setpoint and actual speed and of the actual position

Also very important that you must operate in IRT mode for your PROFINET.  As an example, there is an FAQ about operating a SINAMICS V90 PN with a S71500.  It'll be the same thing.

https://support.industry.siemens.com/cs/document/109739053/position-control-of-sinamics-v90-with-simatic-s7-1500-via-irt-profinet?dti=0&lc=en-WW

http://drivesliterature.danfoss.com/showDetails.action?doctype=TLI&docid=0000000000000030000007118&version=A2&language=EN#

Hi all,

Yes of course i have downloaded the GSDML file from Danfoss site (my drive is Vacon NXP) and it supports Profidrive (shot3). I use Telegram 101 (ST1+8PD) as you can see.

In TO "positioning axis" -> hardware interface -> drive,  I had to choose "show all modules" in order to be able to see and choose ST1+8PD (shot1). After this a message occurred in (shot2) is it OK?

Also as you can see in shot1 in local modules  i am using "TM POSINPUT 2 COUNTING AND POSITON DETECTION MODULE" this is what i am gonna read the encoder with. The encoder will not going to be connected to the drive. The PLC should only send ST1+8PD with speed reference to the drive according what it reads from the encoder. Thus in TO "positioning axis" -> hardware interface -> encoder -> data connection should i choose data block or encoder?

It is not clear to me what should be done for that TO to be set right.

I will attach the project (in TIA portal V14) and the GSDML file as well. In the project you can find "PZD_G120_Tel_352" modified by me to work on Vacon drives via profinet. Anyone interested can use it.

Best Regards

Pavel Kostov

I suggest you use ST1 (=Standard Telegram1) to communicate with the drive. The drive will run in speed mode and the S7 will do the position control in the TO.

I think because Danfoss named the telegram "ST1" and Siemens "Telegram 1" the TIA portal does not recognize it as suitable telegram and you must check "show al module" and you get the information from your shot 2.jpg .

To be able to select the PosInput as encoder you must select "position input for motion control" as operation mode of the used channel. after this you can select it as encoder in the TO configuration (maybe you must compile the HW first).

In the TO configuration, data exchange with drive, you must select "Telegram 1" .
If I understood the danfoss manual right (5.3.2.3  you must enter the speed at maximal frequency as reference and maximum speed.

In the TO configuration, data exchange with encoder, you must enter the same "increments per revolution"  as you had in "Steps per revolution"  in the module configuration.
See https://support.industry.siemens.com/cs/ww/en/view/109486133 for details of the parametration for the encoder.

Thank you miami,

Tomorrow will check it and will come with info.

Regards

Kostov