Fagor alarm 4183: ERROR 509: The activation code that activates the "open" option at the drive has not been entered.
CNC 8055 SERCOS drive error (DDS) · Fagor DDS drives
What it means
The drive's optional 'open' functionality (user-accessible customization) is being used or required but its activation code was never entered, so the option remains locked. Regulation is inhibited until the code supplied by Fagor is entered. Enter the option code in the drive parameters and reset.
Likely causes
- Option purchased but activation code never keyed in
- Drive replaced without transferring the option code
- Parameter restore wiped the licensed option
Triage note: Typical drive-option error; request the code from Fagor quoting the drive serial.
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