Installation and Programming Steps for SUN-(25-50)K-SG01HP3 Deye Hybrid Inverter

Installation:

1. Preparing the Installation Site:
   • Choose a sturdy vertical wall, free from humidity, direct sunlight, or potential explosive areas.
   • Ensure proper ventilation with at least 50 cm clearance on all sides and above the device and 1 meter in front of the inverter.
2. Mounting the Device:
   • Use the included wall mounting bracket and drill four holes as per the specifications in the manual.
   • Secure the inverter onto the bracket using the expansion bolts provided.
3. Wiring Connections:
   • Battery Connection:
     • Use approved DC cables with a suitable overcurrent protection device, such as a DC breaker.
     • Follow the polarity indications carefully when connecting the cables to the BAT+ and BAT- terminals.
   • PV Connection:
     • Install a DC breaker between the PV modules and the inverter for protection.
     • Ensure the PV modules' Voc is within the inverter’s operational range.
     • Use the DC+ and DC- connectors to connect PV input cables securely.
   • Grid and Load Connection:
     • Connect the grid and load cables to the appropriate AC terminal blocks (Grid, Load, GEN).
     • Install an AC breaker between the grid and inverter, and another one between the load and inverter.
     • Verify proper connection of L1, L2, L3, N, and PE.
   • Earth Connection:
     • Ground the inverter using the designated PE terminal to comply with local safety standards.
4. Additional Connections:
   • Install current transformers (CT) with the arrows pointing toward the inverter.
   • Connect the Wi-Fi module for monitoring and system configuration.

Programming:

1. Powering On:
   • After all wiring is complete, press the ON/OFF button to turn on the inverter.
   • If connected to the grid or PV but without a battery, the LCD will display "OFF."
2. System Settings via LCD:
   • Accessing the System Setup Menu:
     • Press the System Setup icon on the home screen to configure the system.
   • Battery Setup Menu:
     1. Choose the Battery Mode: Lithium, AGM, or No Battery.
     2. Configure:
        • Max A Charge and Max A Discharge settings according to battery specifications.
        • Set the Low Batt shutdown threshold (e.g., 10%) and the Restart threshold (e.g., 40%).
        • Enable the Active Battery option for recovering over-discharged batteries.
     3. Ensure proper configuration of the BMS port for Lithium batteries.
   • Grid Setup Menu:
     1. Select the Grid Mode that matches local regulations (e.g., VDE 4105, CEI 0-21).
     2. Set voltage and frequency limits for connection and reconnection:
        • Low Voltage (LV) and High Voltage (HV) thresholds.
        • Low Frequency (LF) and High Frequency (HF) thresholds.
        • Configure the Reconnect Time delay after a trip.
     3. Adjust the PF (Power Factor) if reactive power settings are required.
   • System Work Mode Setup: The Work Mode determines how the inverter prioritizes power usage:
     1. Selling First:
        • Excess PV energy is sent to the grid after supplying loads and charging the battery.
        • Battery energy can also be sold if Time of Use is enabled.
     2. Battery First (BattFirst):
        • PV energy is used to charge the battery first, then supply loads. If PV is insufficient, the grid will supply power.
     3. Load First (LoadFirst):
        • PV energy is used to power the loads first, then charge the battery. If PV is insufficient, the grid will supply power.
     4. Zero Export to Load:
        • PV energy is used only for backup loads, with no energy exported to the grid.
     5. Zero Export to CT:
        • PV energy powers both home and backup loads but does not export to the grid. A CT is required for this mode.
     6. Grid Peak Shaving:
        • Limits grid power consumption to a set value, supplementing with PV and battery if needed.
     7. Time of Use:
        • Defines specific time periods for charging or discharging the battery based on grid availability.
   • Generator Port Use Menu (if applicable):
     1. Set the Gen Signal to control the generator based on battery state of charge (SOC).
     2. Enable the Smart Load Output to utilize excess energy for optional loads.

3. Monitoring and Troubleshooting:

• Use the LCD display to monitor real-time energy flow between the Grid, PV, Battery, and Load.
• Check for error messages (e.g., F01 to F64) and refer to the manual for detailed troubleshooting steps.

Notes:

• Always follow the safety instructions and guidelines in the user manual.
• Programming and installation should only be performed by qualified personnel.