ABB · ACS560 Standard Control Program Firmware
A fault signal has been received from an external device, which is configured through one of the drive's programmable digital inputs. This indicates a problem in an external system or process that the drive is integrated with, often a safety interlock or monitoring system, requiring the drive to stop.
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Identify the specific digital input (e.g., DI1, DI2) configured for external fault via drive parameter P10-10 (External Fault Source).
Monitor the status of the identified digital input in the drive's I/O status display (e.g., DI Status bit 1).
Inspect the external device (e.g., E-stop button, safety guard switch, thermal overload relay) connected to the digital input and determine its trip status.
Verify continuity of the wiring from the external device's output contact to the drive's digital input terminal (e.g., X12/DI1).
Check drive parameter P10-10 for correct assignment of the external fault source, and P10-01 (Digital Input 1 Function) for correct contact type (NO/NC).