Isolating transformers
Special network configurations require an upstream isolating transformer. Like the power supply modules of the AX8000, this supplies a short-term peak current of 100%. Full input power is not required for many applications. If this is the case, isolating transformers with a lower power rating can also be used.
 | 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: |
The power supply modules are assigned to the isolating transformers in the following tables.
Single-phase supply
Module | Nominal current [A] | Isolating transformer | Nominal current [A] |
|---|---|---|---|
AX8620 | 7 | AX2090-TT80-0002; | 7 |
Three-phase supply
Module | Nominal current [A] | Isolating transformer | Nominal current [A] |
|---|---|---|---|
AX8620 | 17.5 | AX2090-TT80-0010; | 14.4 |
AX8640 | 35 | AX2090-TT80-0020; | 28.9 |
Full input power | |||
AX8620 | 17.5 | AX2090-TT80-0016; | 23.1 |
AX8640 | 35 | AX2090-TT80-0030; | 43.4 |