Lower Limit Exceeds Multi-step Speed Reference 0

What does 025 mean?

This warning indicates that the frequency lower limit (A062) is set higher than the Multi-step speed reference 0 (A020) or the output frequency setting (F001). This creates a logical inconsistency where the minimum allowed frequency is greater than a programmed speed reference, potentially limiting operation.

• A062 (Frequency Lower Limit) was manually configured to a value exceeding A020 (Multi-step Speed Ref 0).
• A020 (Multi-step Speed Ref 0) was inadvertently lowered to a value below the configured A062.
• An external frequency command (driving F001) is scaled incorrectly or experiencing noise, causing it to momentarily fall below A062 while A020 is active.
• A logical inconsistency introduced during parameter setup, where the minimum operating frequency is set above a specific speed reference.

Click steps to track your progress.

1. 1

   Access parameters A062 (Frequency Lower Limit) and A020 (Multi-step Speed Reference 0). Compare their values.

2. 2

   Adjust A062 (Frequency Lower Limit) to be less than or equal to A020 (Multi-step Speed Reference 0).

3. 3

   Alternatively, if the application requires A020 to be higher, increase A020 (Multi-step Speed Reference 0) to be equal to or greater than A062.

4. 4

   If F001 (Output Frequency) is causing the issue when A020 is active, monitor the actual output frequency and verify consistency with A020.

5. 5

   Save the parameter changes and power cycle the drive to confirm the settings are active.