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SA

Safety stop

Mitsubishi Electric · Mitsubishi FR-E800 Variable Frequency Drive

¿Qué significa SA ?

This alarm appears when the safety stop function is activated, resulting in the shutoff of the inverter's output. It signifies a protective measure triggered by an emergency stop device or a disconnection within the safety circuit.

Causas comunes

  • External emergency stop button activated, interrupting safety input circuit.
  • Safety relay tripped due to activation of a safety device (e.g., light curtain, gate switch).
  • Safety input parameter (e.g., P3-01 to P3-08) misconfigured or receiving an unexpected signal.
  • Wiring fault in the safety chain, causing a break in the safety loop.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Verify the state of the external emergency stop device or safety relay contacts (e.g., measure voltage at input terminal STOA/STOB).

  2. 2

    Inspect all safety chain devices (e.g., light curtains, door interlocks) for activation or damage.

  3. 3

    Check inverter safety input parameter settings (e.g., P3-01 to P3-08) for correct configuration (e.g., Normally Closed, Normally Open).

  4. 4

    Reset the safety circuit externally after resolving the trigger condition, then attempt to reset the inverter fault.

  5. 5

    Measure continuity across safety input terminals to ensure proper closure or opening as expected by the safety circuit design.

Ver todos los códigos en este manual (55)
Datos técnicos verificados. Última actualización: March 2026

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Fuente: Mitsubishi FR-E800 Variable Frequency Drive