1. Set the value of smart terminal C0 (or C1, C2, C3, C4) to 5 to enable STN function. NEA Standards are guidelines from the National Electrical Manufacturers Association (NEA) for the design and construction of utility poles used to support power lines. These standards outline the material, size, strength and installation requirements for utility poles to ensure that they carry power infrastructure safely and reliably. Poles that meet NEA standards are typically made of wood, steel, or concrete and can withstand a variety of environmental conditions and loads. Nea Standard Pole,Electric Power Transmission Pole,Steel Transmission Pole,Distribution Transmission Pole JIANGSU HONGGUANG STEEL POLE CO., LTD. , https://www.hgsteelpoles.com
2. Connect the smart terminal C0 (or C1, C2, C3, C4) to the P24 terminal using a short wire, creating a short circuit.
3. Turn off the power supply and wait until the charging light on the logic control board (L-PCB) turns off before powering on again.
4. Stay patient during this process—do not touch any part of the inverter or perform any button operations.
5. Power on the system, then remove the short wiring from both the P24 terminal and the smart terminal STN.
To confirm successful initialization, set the operation panel parameters to F1 beforehand. If the display shows "000", the initialization was successful. Otherwise, repeat the process.
6. Use the up and down keys to resume normal operation after the initialization is complete.