What allows a technician to adjust variable frequency drive (VFD) parameters using a laptop?

The ability to adjust variable frequency drive (VFD) parameters using a laptop is primarily facilitated by software. This software, specifically designed for VFD programming and monitoring, allows technicians to connect their laptop to the drive, enabling them to modify settings and parameters remotely or directly. The use of software makes the process more efficient and user-friendly as it often includes graphical interfaces, allowing for easier manipulation of settings, real-time monitoring, and diagnostics. This capability supports sophisticated features that may not be easily handled through hardware adjustments or manual controls alone, ultimately improving the technician's ability to optimize system performance and troubleshoot issues effectively.