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Can different ATV930 sizes be connected to the same DC bus?

ATV930 drives are split into 4 groups depending on voltage class and pre-charging circuit. See attached table. Dc bus connection can be established without the problem with the drives that belong to the same group or also possible to establish connection between drives form A1 and A2 group. Likewise drives in group B1 can be linked with drives in B2 group.
Drives from group A can never be combined with drives from group B.
Bear in mind that there migh be additional rules if not all drives that are in the same DC bus are connected to the AC suply at the same time (but fed from DC bus only).

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