Fagor alarm 2016: The PLC is not ready.
CNC 8055 servo error · Fagor 8055/8055i
What it means
The CNC lost communication with a running PLC program: either no PLC program is loaded, the PLC watchdog tripped, or execution was halted from the monitor. Because ladder logic holds the drive-enable chain on analog 8055 systems, all motion stops and the external emergency output activates.
Likely causes
- PLC program erased or not started after power-up
- PLC watchdog error (execution overrun)
- program interrupted from the PLC monitoring tool
- corrupted user memory after battery failure
Triage note: Restart the PLC from the PLC mode screen; if the program is gone, reload from backup and then investigate why it did not execute.
Need the part urgently?
Send us alarm 2016 with your machine details — typical RFQ turnaround is 24–48h.