ABB NINT-71C｜Inverter Interface Board｜

NINT-71C

Strong and weak electrical and optoelectronic isolation protection
Isolate the high voltage of the DC bus and the strong electrical signal of the IGBT power circuit, block the impact of high voltage surges on the main control CPU, isolate the withstand voltage of 2500V AC, and prevent the control board from burning out.NINT-71C
Power circuit signal acquisition and conditioning
Collect simulated signals such as bus voltage, output three-phase current, power module temperature, and brake circuit status, filter and denoise them, and forward them to the main control for calculation.NINT-71C
IGBT driven pulse distribution transmission
Receive speed control commands from the main control, distribute six drive pulses to the power IGBTs of each phase, and synchronously control the motor output torque and speed.
Fast protection against hardware level faults
Built in hardware detection circuits for overcurrent, overvoltage, short circuit, and overtemperature, which instantly block pulses in case of faults to prevent power module explosions; Real time caching of fault codes.NINT-71C
Fiber optic/bus communication bridge
High speed communication between DriveBus fiber and NAMC control board, supporting parallel expansion of multiple power units (R4i~R12i rack specifications).NINT-71C

ABB NINT-71C｜Inverter Interface Board｜