Input Over-voltage

What does E15 mean?

This fault is triggered when the inverter detects an excessive input voltage from the power supply, specifically during its idle (Stop) mode for a prolonged period (100 seconds). The inverter enters a fault state to protect its internal components from damage due to sustained high voltage.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   If the input voltage is consistently high, identify and correct the issue at the power source or distribution panel.

2. 4

   Consider installing surge protectors or line reactors on the input side to stabilize the voltage and mitigate spikes.

3. 5

   Review the inverter's AVR voltage selection (A082) to ensure it's configured for the correct input voltage class for your system.