Volt-Free Operations; Esd Protection; Lcd Parameter Setting; Sand And Moisture Protection - Sungrow SG3125HV-20 System Manual

System Manual

2.2.7 Volt-free Operations

Perform operations on the inverter only when all devices inside the inverter are
completely voltage-free.
Avoid any inadvertent re-connections.
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Verify that no voltage or current is present with appropriate measurement instrument.
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Ground and short-circuit whenever necessary.
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Cover possible live parts to avoid inadvertent touch.
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Ensure sufficient escape room.
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After the inverter stops, wait at least 10 minutes before operating it.
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Ensure that the inverter is completely voltage-free.
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2.2.8 ESD Protection

Devices may be damaged irreversibly by electrostatic discharge (ESD).
Avoid unnecessary touching of the PCB.
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Observe all the ESD-related safety instructions. Wear proper personal
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protective equipment (PPE) such as wrist strap.

2.2.9 LCD Parameter Setting

Some settable parameters on the LCD are closely related to the operations of the
inverter and internal devices. Thereforethese parameters can only be set with reliable
evaluation of the system.
Improper parameter setting may impair the functionality of the device.
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Only qualified personnel can set the parameters.
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2.2.10 Sand and Moisture Protection

Do not open doors of the inverter on sandstorm, thunderstorm, strong wind or hail days
or when the ambient humidity is above 95%.

2.2.11 Symbols on the Device Body

Symbols on the device contain important information on safe operations of the inverter
and its internal devices. Do not tear or damage them!
2 Safety Instructions
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