Functional path
Control supply
Digital inputs
Analog input reference
Run permissive / interlock
Relay outputs
Local/remote selection
Diagnostic signals and checkpoints
Terminal photosCommand sourceReference sourceExternal fault stateLocal versus remote behaviour
Technician notes
- Many field problems are source-selection or wiring problems rather than failed power electronics.
- Record terminal wiring before parameter changes.
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