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Emergency Stop Active
An emergency stop button has been pressed or the emergency stop input is active. The DSE controller has immediately shut down the engine and will not allow restart until the emergency stop is reset and the fault cleared.
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The emergency stop must be reset (usually by pulling or twisting the button) and the fault cleared on the DSE controller. Check for multiple e-stop locations.
DSE emergency stop input is configurable but typically wired as normally closed (N/C) for fail-safe operation. An open circuit triggers emergency stop.
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A fault code names a symptom, not a cause. Our engineers have written the diagnostic sequence they use on site for this class of fault — ranked causes, ordered steps with the reading expected at each one, and the point at which to stop and call someone.
8 diagnostic steps · intermediate · qualified electrician
8 diagnostic steps · intermediate · technician