Safety Precautions

Personnel Requirements

• Only qualified and trained electrical technicians are allowed to install and operate the PID module.
• Operators should understand the components and functioning of a grid-tied PV power system, and they should be familiar with relevant local standards.

Label Protection

• Do not tamper with any signs on the PID module enclosure because these signs contain important information about safe operation.
• Do not remove or damage the nameplate on the PID module enclosure because it contains important product information.

Installation

Read this document before installation. Huawei shall not be liable for any consequence caused by violation of the regulations specified in this document.

• Ensure that the PID module is not connected to a power supply and not powered on before starting installation.
• Install the PID module in an environment with good ventilation to ensure efficient and long-term system performance.
• Ensure that the PID module heat sinks are free from blockage.
• Do not touch any component inside the enclosure except the wiring terminals at the bottom.

Operation

Perform operations in strict accordance with safety precautions specified in this manual and other relevant documents.

Follow local laws and regulations when operating the device.

Maintenance and Replacement

Before maintaining or replacing the PID module, ensure that:

• The circuit breaker on the PID module AC side is turned off in a SUN2000 scenario.
• The circuit breakers on the PID module DC and AC sides are turned off in a SUN8000 scenario.

• A faulty PID module requires overall maintenance. Contact the dealer if the PID module is faulty.
• Maintain the PID module with sufficient knowledge of this document, proper tools, and testing equipment.
• Wear electrostatic discharge (ESD) gloves and comply with ESD protection regulations during maintenance work.