IndustrialDriveDataDrive Board & Diagnostic Database
Initial records published

Baldor / Baldor-Reliance industrial drive records

Legacy AC drive technical coverage beginning with the Baldor Series 15H PWM inverter control and a reviewed auxiliary-power circuit drawing.

Coverage focus

Legacy industrial AC drives / VFD power-supply and fault diagnosis

Legacy AC drive technical coverage beginning with the Baldor Series 15H PWM inverter control and a reviewed auxiliary-power circuit drawing.

Available series

Series
Series 15H Inverter Control

Series 15H coverage connects official HW Power Supply, HW Ground Fault and DC-bus fault indications to a reviewed auxiliary-power schematic showing two controlled switching-supply regions, isolated feedback and bipolar control rails.

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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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