6SE6420-2UD21-5AA1 alternative

hello everyone,

I can't find the micromaster 420 " 6SE6420-2UD21-5AA1 " in the market anymore

so is there any alternative for it.

thanks.

Hello Ashraf;

The Siemens Industry Mall(electronic catalog) offers a MM4 retrofit configurator that you can use to locate a Sinamics G120 or G120C as a replacement for your MM420.

https://mall.industry.siemens.com/spice/mc-retrofit/

Simply fill in the part number of your original MM420 drive (6SE6420-2UD21-5AA1) and a communication link (I selected Profibus for my search), and other details if you have them,  and allow the configurtor to do its job. Once it is done you can add accessories such as a BOP, as needed. 

Once you have a proposal that fits your repalcement scheme, contact your nearest Siemens rep to discuss pricing and other issues.

See the screenshot below for the results of my example search.

Hope this helps,

Daniel Chartier

first of all, thanks for your reply

but after doing all the steps you mention and uploaded the old parameters

when i tried to download the new converted parameters they asked me to enter  (Access-Code to run the parameter conversion) 

where can i get this code?

thanks in advance