Connection to special network types

For special mains forms, an upstream isolating transformer is required that can provide the full peak current for a short time. If the maximum feed-in power is not required in the application, isolating transformers with lower power can also be used.

Connection to special network types 1:

Checking the isolating transformer power rating with the TwinCAT 3 Motion Designer

Check the isolating transformer power rating with the design software TE5910 | TwinCAT 3 Motion Designer.

This can be found on the Beckhoff homepage:

Isolating transformers

The following table shows an overview of the available isolating transformers for the corresponding feed-in power.

Supply 1 x 230 V AC for AF1xxx-1xxx

Isolating transformer

Rated power

AX2090-TT80-0002; 230 V

1.6 kVA

Supply 3 x 400…480 V AC for AF1xxx-3xxx

Isolating transformer

Rated power

AX2090-TT80-0016; 400 V

16 kVA

AX2090-TT80-0030; 400 V

30 kVA