4kw 220V AC DC Solar Panel Dual Power Frequency Inverter for Pump and PMSM Motor

1. Maximum Power Point Tracking (MPPT) with fast response speed and stable operation efficiency> 99%
2. Suits for most 3 phase AC motors and AC PMSM high efficiency motors.
3. The working voltage of solar panel can set by manual or by MPPT automatically tracking function;
4. Compatible with dual power input, AC grid and DC power supply input;
5. Built in automatic sleep/wake up function for PID control;
6. Dry run (under load ) protection;
7. Motor maximum current protection;
8. Low input power protection;
9. Lowest stop frequency protection;
10. The PQ (power/flow) performance curve enables to calculate the flow output from the pump;
11. Digital control for fully automatic operation, data storage and protective functions;
12. Intelligent power module (IPM) for the main circuit;
13. LED display operation panel and support remote control;
14. Low water probe sensor and water level control function；
15. Strong lightning protection；
16. Ambient temperature for using: -10 to +50˚C.
17. ü Clock relay card for timing stop and stop control；
18. LCD keypad as optional；
19. Input VOC auto-detection.