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12-34
Keyswitch mismatch after switchover
Allen-Bradley · Logix 5000
¿Qué significa 12-34 ?
Immediately after a switchover, the keyswitch positions of the primary and secondary controllers are mismatched. Specifically, the old primary is in Program mode and the new primary is in Run mode.
Causas comunes
- Keyswitch positions of primary and secondary controllers mismatched after switchover
- Old primary controller in Program mode, new primary in Run mode
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Change the keyswitches from Run to Program to Run mode twice to clear the fault.
- 2
Use the Logix Designer application to go online with the controllers, then clear the faults and change both the controllers' modes to Run.
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: Logix 5000