Could it be that you use outdated manuals? Please refer to Project Planning manual R911318790, edition 06 https://www.boschrexroth.com/media/0d277bb3-d4a6-42c9-9f5d-7551dc41c2eb and/or Drive System manual R911309636, edition 07 https://www.boschrexroth.com/media/025b9cc8-a587-4c23-b169-d6b18975117d These provide up-to-date information and also notes on auxiliary IndraDrive components or the necessity of an isolating transformer. Transient voltages should not be the issue here. But altitude restrictions and possible deratings simultaneously apply also to the motors (e.g. derating on continuous power) and cables (probably derating on ampacity). First task for the OEM is to specify the operating and ambient conditions for the site of operation and then go through sizing & selection with the product specs given in our manuals.
... View more