说明：  主要介绍了SUN2000 逆变器的安装、电气连接、调试、维护和故障处理的方法。请在安装、使用逆变器之前，熟悉逆变器的功能和特点，并认真阅读本手册中的安全信息。
(This paper mainly introduces the installation, electrical connection, debugging, maintenance and fault treatment of SUN2000 inverters. Before installing and using inverters, be familiar with the functions and characteristics of inverters, and read the safety information in this manual carefully.)