DC-link and current ratings
The 6SL3357-3AG41-3AA8: Rated for a DC-link voltage range of 750-1035 V DC and a continuous current of 1422 A. That 1422 A figure is the line-side current the card supports when paired with the correct power stack — it is not a per-pin rating but the system-level capability. The FPGA handles the modulation and fault-handling logic; if you are commissioning a replacement, expect to reload the firmware version that matches the rest of the drive train.
