You are absolutely correct. Swapping the leads on both sides of the load reactor effectively cancels out the change in rotation. Here's the breakdown: Your Initial Action (Correct)

Swapping two leads on the motor side (load side) of the load reactor correctly reverses the motor's rotation. The VFD is still producing the same output sequence, but the motor now sees a different phase order, causing it to spin the other way.

Your Co-worker's Suggestion (Incorrect)

Swapping the same two leads on the VFD side (line side) of the load reactor undoes your first swap. The load reactor is now receiving the same phase sequence as it was originally. It then inverts that sequence, back to its original arrangement. It's like flipping a switch twice; you end up where you started.

Think of it this way


VFD Output

The VFD puts out phases A, B, and C in a specific sequence.2.

Reactor with Line Side Swap

The reactor receives that sequence, and because you swapped two phases on the line side, it now delivers a re-arranged phase order (e.g., B, A, C, but also could be C, B, A depending on what two phases you swapped).3.

Reactor with Load Side Swap

You re-arranged it back to the original sequence.

Outcome

The motor is now receiving the same phase sequence it was receiving before you did anything. Therefore, it will spin in the original direction.

You need to undo the change your co-worker made on the line side of the load reactor.Safety Note: When working with VFDs and motors, always disconnect power and verify zero energy before making any wiring changes. Even with interlocks and safety features, mistakes can be dangerous. Double-check your work with wiring diagrams and schematics to ensure accuracy.Hopefully this explanation helps! Flag for review