Parameter Minimum Value Exceeded

What does 9 mean?

An attempt was made to set a parameter's value below its defined minimum limit. This protects the system from invalid or unsafe operating points, ensuring operational stability. If the new value is absolutely required, the parameter limits must be adjusted first.

• A PLC program is attempting to write a value to a parameter (e.g., P2-01, Motor Speed Reference) that is below its configured minimum limit (e.g., P2-02, Minimum Speed).
• Manual entry via the drive keypad or HMI resulted in a value lower than the parameter's absolute hardware or firmware-defined minimum.
• An analog input signal (e.g., AI1 connected to terminal 5) is scaled incorrectly, causing the resulting parameter value to fall below its minimum threshold (e.g., P7-03 scaling for AI1).
• A computed value from a controller attempts to set a parameter below its physically or safely allowable minimum (e.g., setting Brake Torque P5-04 below 0.0 Nm).

Click steps to track your progress.

1. 1

   1. Identify the parameter being written to and read its configured minimum limit (e.g., check P2-02 for P2-01, or the absolute minimum from the manual).

2. 2

   2. Adjust the PLC program logic or HMI input fields to ensure that the value written to the parameter is always greater than or equal to its minimum limit.

3. 3

   3. Verify the scaling configuration for any analog input (e.g., P7-03 for AI1) that influences the parameter's value to ensure proper mapping within the acceptable range.

4. 4

   4. If manual entry, ensure the operator is aware of the minimum limit for the parameter and provides a value above it.