Dear Experts,

We have sinamics G150 installed at our facility. We have 2 Drives of 750k Kw and one 0f 250 Kw

Actually i wanted to know that what are the precautionary measurements that should be taken under consideration if we are planning for the maintenance of the drives... 

what activities should we perform during the maintenance??

Plus a question arises that in our case currently what we are doing is we are shifting these drives to another power source means to another transformer. So is it necessary to turn of the main breaker o the drive before turning OFF the main supply??

and on the contrary if we do not turn of the main breaker mean we turn of the transformers supply remove the cables and connect them to another transformer and turn ON the transformer while the breaker of the drives are still ON what impact will it have on the Drives??

Thank's in Advance for the Useful suggestions...

PISCEAN 2010

Please download this manual & check, hope it would be useful.

 Hi, I'm a SIEMENS employee, but the link you posted doesn't work for me, could you please share it again?

Hello AutoGen_989717,

the user PISCEAN 2010 shared the link in 2016, that may the reason why the link is no longer available. 
I assume that reference was made to the following manual:  
https://support.industry.siemens.com/cs/de/en/view/83180185

If you have a specific question, please feel free to ask! 

Best regards,
Jen_Moderator