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16171
Internal Device Error
ABB · AC500
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This critical error indicates a severe, unrecoverable internal malfunction within the safety I/O module itself. This type of fault typically points to a hardware failure or a fundamental firmware issue that cannot be resolved through configuration or external checks, demanding immediate attention.
Häufige Ursachen
- Malfunctioning internal hardware component (e.g., ASIC, memory chip) within the safety I/O module.
- Corrupted firmware image or bootloader sector preventing proper module initialization.
- Over-stress condition (e.g., transient overvoltage beyond 24VDC tolerance) causing permanent damage to internal circuitry.
- Manufacturing defect in the module's core processing unit.
Reparaturschritte & Checkliste
Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.
- 1
Record the full fault code and module serial number for manufacturer reference.
- 2
Power cycle the safety I/O module by removing and re-applying its 24VDC supply voltage at terminals X1.1 and X1.2.
- 3
Replace the entire safety I/O module with a new, tested unit if the error persists.
- 4
Verify proper grounding of the new module's chassis to the control cabinet's ground rail.
Verifizierte technische Daten. Zuletzt aktualisiert: March 2026
Verwandte Fehlercodes
Quelle: ABB AC500