Speed Searchв Control V 15.0.2 -
Set the time the drive takes to "search" down from the maximum frequency. A default of 2.0 seconds is common. 3. Verification & Safety
Typically set between 100% and 150% of the motor's rated current. This determines how much "effort" the drive uses to find the frequency. Speed searchВ Control v 15.0.2
In the context of industrial automation and , "Speed Search" (often called "Catch-on-the-Fly") is a feature that allows a drive to restart into a motor that is already spinning (e.g., after a brief power loss or while a fan is windmilling). Set the time the drive takes to "search"
Set b3-01 (Speed Search Selection) to 1 (Enabled) . Verification & Safety Typically set between 100% and
Ensure your control method (e.g., V/f Control or Open Loop Vector) supports Speed Search, as some high-precision flux vector modes require specific PG feedback tuning to work.
To prepare or enable the feature in a control system (such as Yaskawa or similar VFD controllers ), follow these general configuration steps: 1. Enable the Speed Search Function
To ensure the drive catches the motor smoothly without tripping an overcurrent fault, adjust the search sensitivity:



