Invalid Value for Parameter

What does 8.0.00.1D mean?

The value provided for the parameter is invalid, not necessarily because it's outside the numerical range, but due to an incorrect format, data type, or unsupported option. This means the input does not conform to the parameter's expected structure or choices. The inverter rejects the invalid value.

• Attempting to write a string value to a parameter that expects a numeric input (e.g., "OFF" instead of "0" for P1-00).
• Providing a non-integer value to a parameter that strictly requires an integer (e.g., 2.5 to P1-01 "Motor Rated Voltage" which only accepts whole numbers).
• Selecting an unsupported option for an enumerated parameter (e.g., setting P1-05 "Control Mode" to "9" when only options 0-5 are valid for the current firmware).
• Data type mismatch between the PLC/HMI (e.g., sending a 16-bit integer) and the inverter's expectation (e.g., requiring a 32-bit float) causing misinterpretation of the value.
• A checksum error or data corruption during communication causes the inverter to receive a malformed parameter value.

Click steps to track your progress.

1. 1

   Consult the inverter's parameter manual for the specific parameter (e.g., P1-05) to determine its valid range, data type (integer, float, enum), and accepted options.

2. 2

   Review the PLC/HMI program to ensure the correct data type, format, and value are being sent for the parameter (e.g., convert "OFF" to 0 if P1-00 expects an integer).

3. 3

   If an enumerated parameter (e.g., P1-05 "Control Mode") is being set, verify that the chosen option number is listed as valid for the current inverter model and firmware.

4. 4

   Check for potential communication errors (CRC, parity) on the fieldbus interface (e.g., Modbus RTU on X13) that might be corrupting the transmitted data, by monitoring bus traffic with a protocol analyzer.

5. 5

   Perform a factory reset (e.g., P0-99=1) and reload known good parameters to clear any potential internal configuration inconsistencies.