In this article:
Overview
When encountering a 3-phase Zappi charger operating solely on a single phase, it's typically a result of an installation error.
Zappi's terminal blocks may not align with conventional expectations, necessitating a thorough review by the installer before connecting the feeds.
Why Does This Happen?
It's important to note that our board configuration differs from the standard L1 L2 L3 layout, instead following L3 L2 L1 due to the shared mainboard across devices.
For clarity, we've provided an example of both our Single Phase Zappi (2H07) and our Three Phase Zappi (2H22) below.
The Fix
The most effective solution often involves swapping the positions of L3 and L1 in the terminal block. This adjustment allows the Zappi charger to accurately detect and utilize a true Three Phase Rotation
Phase Rotation Phase Rotation is only used on three phase devices and should correspond to the wiring of the input terminals.
Only the following specific options are available: • 1/2/3 (Ph-1 to “L1”, Ph-2 to “L2”, Ph-3 to “L3”) • 2/3/1 (Ph-2 to “L1”, Ph-3 to “L2”, Ph-1 to “L3”) • 3/1/2 (Ph-3 to “L1”, Ph-1 to “L2”, Ph-2 to “L3”)