Value for Parameter Too Small

What does 8.0.00.16 mean?

The value provided for the parameter is below its defined minimum permissible limit. This means the requested setting is less than the smallest allowed value for that specific parameter, often due to physical limitations or control stability requirements. The parameter value is rejected.

• A control system (PLC/HMI) attempts to write a speed reference (e.g., P2-01 "Frequency Setpoint") that is below the inverter's minimum output frequency limit (e.g., P1-51 "Min Output Freq").
• Attempting to set a critical protection parameter (e.g., P3-01 "Overload Protection Trip Level") to zero or an extremely low value, disabling vital safety functions.
• An acceleration or deceleration ramp time (e.g., P2-05 "Acceleration Time") is set to a value too close to zero (e.g., 0.01s) which is below the inverter's minimum configurable time resolution.

Click steps to track your progress.

1. 1

   Consult the inverter's parameter manual for the specific parameter (e.g., P2-01) and identify its defined minimum permissible value.

2. 2

   Review the PLC/HMI program to identify the source of the undersized parameter value and adjust the value to be within the inverter's limits (e.g., ensure speed reference is above P1-51).

3. 3

   If the desired operational value is legitimately very small, ensure it is still above the absolute minimum specified for the parameter (e.g., set P2-05 to 0.1s instead of 0.001s).

4. 4

   Verify that the data type and scaling used by the PLC/HMI for the parameter write are correct and not causing an unintended zero or near-zero value (e.g., integer division truncating to 0).