Fagor alarm 4058: ERROR 102: Internal +8 V out of range
CNC 8055 SERCOS drive error (DDS) · Fagor DDS drives
What it means
The +8 V internal supply of the drive is out of limits. Like all rail errors it requires a power-down/power-up cycle after correcting the cause and produces a full CNC stop with enables removed.
Likely causes
- Internal SMPS failure
- Defective circuitry drawing excess current from the rail
- Poor internal connector/contact
Replacement parts
We supply the following units for this alarm — tested, warranty-backed:
- Request a quote →
DDS / AXD / SPD drive
drive · Common cause
Need the part urgently?
Send us alarm 4058 with your machine details — typical RFQ turnaround is 24–48h.