How to troubleshoot a Voltronic Power AXPERT MAX II 8KW that couldn’t startup completely?
If your Voltronic Power Inverter doesn't start completely, the cause may be a damaged SPS module. First, measure the resistance between BAT+ and BAT-. If it's not shorted, connect only the battery to the inverter and press the “ON” button to see if it starts. If it still doesn't start, check the fan.
Initial steps and prerequisites for using the manual.
Explanation of the inverter's fundamental circuit design and topology.
Overview of different inverter models and their characteristics.
Visual identification and description of key internal components.
General procedure for diagnosing and reporting inverter faults.
Detailed analysis of common fault codes and their potential causes.
Steps for verifying repair effectiveness and inverter reliability.
Inspection of fuses, capacitors, and power devices on the main board.
Guide for checking IGBTs and control ICs on the main board.
Inspection of Buck MOSFETs, diodes, and driver components.
Guide for testing INV IGBTs and related driver circuits.
Procedures for checking power supply components like MOSFETs, ICs, and diodes.
Guide for inspecting fuses, NTCs, rectifiers, transistors, and diodes.
Instructions for checking boost IGBTs, diodes, and resistors on the MPPT board.
Steps for removing screws from the top cover and rear panel.
Procedures for disconnecting remote panel, control, and power cables.
Steps for removing internal circuit boards like SCR, SPS, and control boards.
Guide for removing NTCs and extracting main and MPPT boards.
General| Model | AXPERT MAX II 8KW |
|---|---|
| Rated Power | 8000W |
| Output Voltage | 230VAC |
| Efficiency | 93% |
| Battery Voltage | 48VDC |
| Maximum PV Array Power | 8000W |
| Maximum PV Array Open Circuit Voltage | 500VDC |
| Max. Solar Charge Current | 120A |
| AC Input Voltage | 230VAC |
| Cooling | Fan |
| Output Frequency | 50Hz/60Hz |
| MPPT Voltage Range | 120-450VDC |
| AC Input Frequency | 50Hz/60Hz |
| Protection | Overload, Over Temperature, Short Circuit |
| Operating Temperature | 0°C to 55°C |
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