Safety Stop
Mitsubishi Electric · FR-D700 Basic Inverter
What does Safety Stop mean?
The safety stop function has been activated, resulting in an immediate shutdown of the inverter outputs. This critical safety measure is typically triggered by an external safety device or a wiring issue across terminals S1 and SC, or S2 and SC, indicating an open circuit in the safety chain. If misconfigured or experiencing an internal failure, it can prevent normal operation or compromise machinery safety.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
If the error persists when terminals S1/SC and S2/SC are correctly shorted (and drive is enabled via safety function), an internal failure might be the cause; contact your sales representative.
- 4
Refer to the Safety stop function instruction manual (BCN-A211508-000) for more detailed causes and countermeasures.