Schneider NHA76097_00 Trigger Board – New Original ATV600 Driver

What Is the NHA76097_00?

The Schneider NHA76097_00 is a trigger/driver board for Altivar ATV610, ATV630, and ATV930 drives, typically covering the 160–250 kW range. It generates the PWM gate signals that drive the IGBT power modules and integrates the DC-bus capacitor bank and braking IGBT on the same assembly. It is a power-stage driver module, not the main CPU board or the terminal I/O board. Supplied as New Original stock.

Key Specifications

When This Board Is the Suspect

• SCF (Short Circuit Fault) with motor cables disconnected — if the short-circuit fault persists after the motor leads are removed, the issue is internal to the drive. A faulty driver board supplying abnormal gate pulses to the IGBT is a documented cause of SCF.
• InF (Internal Fault) after reseating control ribbon — Schneider lists control-board-to-power-board ribbon connection and power-board feedback signal abnormality as causes. If the ribbon is secure and the fault follows the power stage, this driver board should be inspected.
• No output / phase loss with IGBT module confirmed good — if the IGBTs test normal but the drive does not switch correctly, the gate-drive path on this board is the next suspect.

Compatibility Check

Before ordering, confirm:

• Drive MLFB — the exact ATV610/630/930 catalogue number. The 160–250 kW range spans multiple frame sizes.
• Version suffix — confirm the original board label reads NHA76097_00. Different revisions may not be direct drop-in replacements.
• Fault context — confirm SCF/InF persists after motor disconnection and ribbon reseating. If the fault clears, this board is likely not the root cause.
• If unsure, send a photo of the original board label and the drive nameplate before purchase.

FAQ

Does SCF always mean the NHA76097_00 is faulty?

No. SCF is a short-circuit fault. Motor cable insulation and IGBT module failure are common causes. A faulty driver board is one possible source, but the motor and power module should be ruled out first.

What does the “_00” suffix mean?

It indicates a hardware revision. Different revisions may carry different firmware or interface details. Verify the suffix on the original label before ordering.

Is this the main CPU board?

No. It is the trigger/driver board for the power stage. The CPU board is a separate assembly.

Condition & Dispatch

New Original stock. Inspection covers connector condition, capacitor appearance, and PCB integrity. Photographic records are available on request before dispatch.