IndustrialDriveDataDrive Board & Diagnostic Database
Schneider Electric Altivar field-service reference

Altivar ATV61 / ATV71 service platform

A practical family-level record for ATV61 and ATV71 drives, focused on the evidence a technician needs before classifying an OCF, SCF, OSF or USF trip as a supply, motor, cable, load, braking or drive-electronics problem.

Record facts

Common service evidenceFault code, trip timing, motor connected status, load condition, terminal-command state and DC-link behaviour
First diagnostic boundaryInput/DC link for OSF/USF; output motor path for OCF/SCF; terminal logic for command/reference issues
Database roleBridge from generic VFD triage to Schneider Altivar-specific fault pages

Service notes

  • Record whether the trip occurs at power-up, run command, acceleration, steady load or deceleration.
  • Do not clear the display before saving the code and operating condition.
  • Separate motor/cable insulation problems from output bridge damage before quoting a drive replacement.
  • For hoist or high-inertia loads, overvoltage during deceleration may involve ramp, braking resistor, line conditions and DC-link measurement evidence.

Related technical records

OCF
Overcurrent Fault

The Altivar drive trips on OCF at run command, during acceleration or when the load changes.

Open →SCF
Motor or Output Short-Circuit Fault

The drive reports SCF or trips instantly when the output bridge is enabled.

Open →OSF
DC Bus Overvoltage / Supply Overvoltage

The Altivar drive reports OSF at power-up, while idle, during deceleration, on a regenerative load, or after braking hardware has been changed.

Open →USF
Undervoltage / Supply Loss Fault

The Altivar drive reports USF at power-up, drops ready state, trips after a run command, or shows undervoltage when the plant supply or line contactor changes state.

Open →Circuit
Schneider ATV61 / ATV71 Input, Precharge, DC-Link and Braking Path

Routes OSF and USF evidence through the full energy path: L1/L2/L3 input, fuses, contactor, rectifier, precharge, DC-link capacitors, PA(+)/PC(-) bus measurement, brake chopper and braking resistor route.

Open →Circuit
Schneider ATV61 / ATV71 Output Motor and Short-Circuit Path

Routes OCF and SCF evidence through motor cable, motor insulation, output terminals, optional output devices, IGBT bridge, current detection and gate-driver integrity.

Open →Circuit
Schneider ATV61 / ATV71 Control Terminal Command Path

Captures start/stop, run permissive, direction, analog reference, relay-output and external fault evidence before a drive hardware conclusion is made.

Open →Workflow
Schneider ATV61 / ATV71 OCF and SCF Diagnostic Workflow

ATV61/ATV71 trips on OCF overcurrent or SCF short circuit at start, ramp or load.

Open →Workflow
Schneider ATV61 / ATV71 OSF and USF DC-Link Diagnostic Workflow

ATV61/ATV71 reports OSF overvoltage or USF undervoltage during power-up, line transition, run, load change, stop or deceleration.

Open →
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 →