- Low Output Power: Check if PV panels are dirty or if the MPPT voltage range is mismatched.
- Erratic Pump Behavior: Verify motor phase sequence (U, V, W) and check for ground faults in the cabling.
- Maintenance: Recommended periodic cleaning of the cooling fan and heatsink to prevent dust accumulation, which is common in agricultural environments.
Control Modes: Sensorless Vector Control (SVC), V/f control, and torque control.
Problem 1: The motor runs but cannot stop using the keypad.
Manual solution: Check function code P4.00. If it is set to 1 (external terminal stop), the STOP key is disabled. Change P4.00 to 0 to force keypad control. Invt CHE100 Inverter User Manualpdf
- Output Frequency: 0–50Hz / 0–60Hz.
- Overload Capacity: 110% for 1 minute (typical).
- Compatible Motors: Asynchronous induction motors (standard for pumps).
Key Features
- Battery-Free Operation: Directly utilizes solar DC power, reducing system costs and maintenance.
- Advanced MPPT: Utilizes a high-efficiency MPPT algorithm to extract maximum power from PV arrays, ensuring optimal water output even during low-irradiance periods (cloudy days, morning/evening).
- Automatic Sleep/Wake: The inverter automatically sleeps when solar irradiance drops below a threshold and wakes up when it rises, preventing dry running of the pump.
- Hybrid Support: Selectable models support AC grid input (diesel generator or utility power) via a dual-input configuration, allowing for seamless switching between solar and grid power.