IndustrialDriveDataDrive Board & Diagnostic Database
Power-stage / sensing evidence record

PowerFlex Output Stage and Current-Sense Evidence Record

Captures F12 and F13 evidence around the motor path, output module, current sensors, gate-driver boundary and previous repair history.

Board and evidence record8 min read

Scope of this technical record

Defines the evidence package needed before requesting PowerFlex output-stage, gate-driver or current-sense repair after F12/F13 events.

Safety boundary

Power-stage evidence must be gathered with the drive isolated and discharged. Do not power a repaired stage until external causes are cleared.

PowerFlex output-stage evidence route

1Fault queue
→
2Output terminals
→
3Cable proof
→
4Current sense
→
5Driver / module

The evidence record prevents another module from being fitted without root-cause proof.

PowerFlex output-stage evidence image

PowerFlex output stage current sense gate driver and module evidence route
The evidence image defines what a repair request needs after F12/F13.

What to photograph and record

A useful output-stage request includes fault queue, output terminals, motor/cable condition, module/board labels, previous repair history and any current-feedback anomaly. A burned component photo alone does not prove the root cause.

  • Output terminal and motor cable evidence
  • Power-module or output-stage labels
  • Gate-driver board or harness labels
  • Fault queue and timing
  • Previous module replacement history

Repair decision boundary

If the external output path is not proven, the repair should stop at evidence gathering. If the external path is proven and the fault persists, the request can move to gate-driver, current-sense and output-stage evaluation.

Field record checklist

  • Output evidence
  • Module identity
  • Driver/current feedback
  • Failure history
  • Pre-power stop condition

Technical basis and reference documents

This is an independent editorial technical reference. Original manufacturer documentation remains controlling for installation, repair and commissioning decisions.

PowerFlex 520-Series Technician ManualRockwell Automation

OEM reference for safety and output wiring context.

Linked circuit records

Circuit
PowerFlex Output Current and Ground-Fault Path

Routes F12 and F13 evidence through output bridge, current sensing, motor cable, motor insulation, grounding/shielding and mechanical load conditions.

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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
Prepare request →