IndustrialDriveDataDrive Board & Diagnostic Database
Power assembly

Yaskawa 616G3 55 kW Power-Stage Assembly

Converts the DC link into controlled three-phase output through six IGBT switching arms.

Record status

IdentifierAssembly function verified; formal board identifier pending
Record typePower assembly

Observed functional elements

Six IGBT armsMS1250D225P suppression elementsMS1250D225N suppression elementsCooling/fault detection interfaces

Diagnostic use

  • Interpret bench-current behavior
  • Inspect after fast-fuse or module failure
  • Correlate auxiliary detection with repair testing

Linked circuit records

Circuit
Yaskawa 616G3 55 kW Power Stage and Suppression Path

The 55 kW main circuit contains the expected rectifier, DC-link and inverter path, while also showing dedicated parallel suppression/protection devices across the IGBT arms and auxiliary fan/status detection wiring.

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Evidence intake

Turn this record into a qualified service request

A repair decision is much more reliable when the request includes the exact identity of the drive, the first fault evidence and the machine condition when the symptom appeared.

  • Complete drive type code / MLFB or nameplate model
  • Fault code, fault value and first event before reset
  • When the event appears: power-up, enable, ramp, run, decel or stop
  • Motor/cable connected or isolated during the symptom
  • Visible board, option-card, module and connector identifiers
  • Previous repair history, replacement parts and repeat-failure pattern
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