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3
Frequency Error
Allen-Bradley · MicroLogix 1400 Programmable Controllers
¿Qué significa 3 ?
The operating frequency value (OFS) specified for the PTOX instruction is less than 0 or greater than 100,000 pulses per second. This error faults the controller and indicates an invalid frequency parameter. It can be cleared by logic within the User Fault Routine.
Causas comunes
- Operating frequency (OFS) parameter set to an out-of-range value (i.e., less than 0 or greater than 100,000).
- Incorrect calculation or direct input of an invalid frequency parameter in the PTOX instruction.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Adjust the operating frequency (OFS) value in the PTOX instruction to be within the valid range of 0 to 100,000.
- 2
Review the program logic that writes to the OFS parameter to ensure it calculates and sets a valid frequency.
- 3
Clear the fault using the User Fault Routine or by cycling power after correcting the OFS value.
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: Allen-Bradley MicroLogix 1400 Programmable Controllers