How to read an inverter parameters by Sina_Para function.

 hey,

I just wanna ask you an example how  to read an inverter parameters by Sina_Para function.

Thank you.

RB91

Hello,

you can definetely use SINA_POS (handling the cyclic data of telegram 111) and SINA_PARA (to write drive parameters) together in your PLC program.

As I understood your SINA_POS works fine and you just have problems with SINA_PARA.

I think this will be an issue of correct parameterization of the SINA_PARA block. Can you maybe show some screenshots of your project? I would like to see the interface of your SINA_PARA and also the part where you define which parameters you want to change in the drive (in the instance DB I think)

Do you use the correct HW ID? -> I recommend to use the same as you used for SINA_POS.

Have you set axis number to "2"? In case of V90 you need 2. In case of SINAMICS G it must be "1". In case of S120 you need to check the correct drive object number of the axis.

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Split from When using the sina para function, it doesn't write.

Hi, 

the base is always that you have in general a connection between PLC and drive. In most cases you will have a cyclic communication using a so called telegram (e.g. standard telegram 1 for easy speed control of a drive) - with such cyclic communication you exchange all data which needs to be handled quickly (switch on / off drive, send the speed setpoint, receive the actual speed of the drive,...). For that communication you can use standard FBs such as SINA_SPEED.

Additionally there are some parameters in the drive which cannot be used in the cyclic telegram, for example setting parameters - those ones can be read and written in an acyclic way with the SINA_PARA FB. An example would be to write p971 to save the drive parameterization retentively or it is also needed when performing the absolute encoder adjustment with p2507. Or if you would like to change the drive's ramp up time p1121. 

all i want is to read the CRC parameter of an inverter with this sina para function, how can i do it ?

Thank you .