Safety Precaution; General Safety; Dc Side - Goodwe SDT Series User Manual

User Manual V1.3-2024-01-25

2 Safety Precaution

The inverters are designed and tested strictly to comple with related safety rules. Read and
follow all the safety instructions and cautions before any operations. Improper operation
might cause personal injury or property damage as the inverters are electrical equipment.

2.1 General Safety

• The information in this document is subject to change due to product updates or
other reasons. This manual cannot replace the product labels otherwise specified. All
descriptions here are for guidance only.
• Before installations, read through the user manual to learn about the product and the
precautions.
• All installations should be performed by trained and knowledgeable technicians who are
familiar with local standards and safety regulations.
• Use insulating tools and wear personal protective equipment when operating the
equipment to ensure personal safety. Wear anti-static gloves, cloths, and wrist strips when
touching electron devices to protect the inverter from damage.
• Strictly follow the installation, operation, and configuration instructions in this manual. The
manufacturer shall not be liable for equipment damage or personal injury if you do not
follow the instructions. For more warranty details, visit:
• https://en.goodwe.com/warranty.asp.

2.2 DC Side

Connect the DC cables using the delivered DC connectors and terminals.
shall not be liable for the equipment damage if other connectors or terminals are used.
• Ensure the PV module frames and the PV mounting system are securely grounded.
• Ensure the DC cables are connected tightly and securely.
poor contacts or high impedances, and damage the inverter.
• Measure the DC input using the multimeter. The manufacturer shall not be liable for
damage caused by reverse connection, overvoltage, and overcurrent.
• Mixing PV modules of different brands or models in the same MPPT or connecting PV
modules with different directions or inclination angles in the same PV string may not
necessarily damage the inverter, but may lead to a decrease in the system performance.
• The maximum open-circuit voltage of each PV string cannot exceed:
• 850 V DC for the models of GW12KLV-SDT-C30 and GW17KLV-SDT-C30
• 1100 V DC for the models except GW12KLV-SDT-C30 and GW17KLV-SDT-C3 (recommend
1045 V considering low termpereture environment).
• It is recommended that the voltage difference between MPPTs shall be less than 160 V.
• It is recommended that the sum of the Imp of the PV strings connected to each MPPT shall
not exceed the Max. Input Current per MPPT of the inverter.
• When there are multiple PV strings, it is recommended to maximize the connections of
MPPTs.
• The PV modules used with the inverter must have an IEC61730 class A rating.
WARNING
NOTICE
DANGER
WARNING
Inappropriate wiring may cause
3
02 Safety Precaution
The manufacturer