--- title: "Error codes" slug: "error-codes" updated: 2024-07-04T11:10:14Z published: 2024-07-04T11:10:14Z canonical: "docs-linescan.alliedvision.com/error-codes" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs-linescan.alliedvision.com/llms.txt > Use this file to discover all available pages before exploring further. # Error codes If an error is set, an error response is generated. ## Examples | Query | Response | Meaning | | --- | --- | --- | | MU 1 | er 100 | unknown command | | IY K 500 | er 101 | unknown parameter | | IY A 4000 | er 102 | parameter out of range | | If an internal error is set, the response is integrated in the standard response: | | TE | te 70-80,71,23-21,22;er 202,A | LED voltage at channel A out of range | ## List of error codes | Error code number | Description | | --- | --- | | 100 | Unknown command | | 101 | Unknown parameter | | 102 | Parameter out of range | | 103 | Command is not allowed in the current operating mode | | 200 | Supply voltage exceeds limits | | 201 | Analog control voltage exceeds limits | | 202 | LED Voltage out of range | | 203 | Output voltage exceeds limits (Programmed in the Corona II module) | | 204 | Warning temperature exceeded | | 205 | Maximum temperature exceeded | | 206 | Shutdown active | | 210 | Write error to EEPROM in Driver Unit | | 211 | Read error from EEPROM in Driver Unit | | 212 | Write error to EEPROM in Corona | | 213 | Read error from EEPROM in Corona | | 214 | Fan failure detected at ACTRL | | 215 | Programmable voltage value out of range (Programmed in the XLC4 control unit) |