Replacement of the DC drive which has details mentioned below? Does not necessarily have to be from Siemens. Would appreciate your help :)

SIEMENS, SIMOREG
6RA 2285 - 6DS22 – 0
INPUT: 380V 492A 50/60HZ
OUTPUT: DC 460V
FIELD SUPPLY:
INPUT: 380V 25A 50/60HZ
OUTPUT: UN 310 10A RSZ
Input: D415, + 10% max 50HZ
Permissible Inlet air temperature for
Forced cooled units: 35 C

I assume that this is a European application from the 380VAC input. Siemens would be glad to sell you a drive good for your 460 VDC Motor. This is a fairly common setup, I believe that a fully digital system is now available.
If you are in the US call Apfelbeck electronics (Assistant Production Manager)in Wisconsin. Ken is one of the sharpest guys on the Siemens DC drives. He can replace the obsolete electronics and keep the SCR packs for armature and field. I believe that the applicable range of the drive for 480 includes the 380 drives as well. The important thing is the rating of the SCR bridges.
Give Ken a call and he can give you his email address. Ken has done work for me and I have been very satisfied with his work.

Hi Zaid,

Can you share with us the application details please?

Try Emerson Control Techniques, I think they should be able to help you

I assume that you have a bad or troublesome drive or need a second one. Call Apfelbeck if the drive you have has bad boards. he can fix them or swap them or replace them with new digital that are less trouble. If the SCR bridge is OK ( and this would be the same parts even if a new drive was purchased) then the enw electronics would give the functionality at a much lower cost.

I am 200% sure that Control Techniques "Mentor II" fits ur application....

You have a wide choice..... Parker SSD's 590+ and Sprint Electric PL/PLX apart from Mentor II...all British made Just match specs including ambient temp overload and duty cycles