With LCD display for easy tuning, debugging, while monitoring and fault operation can be realized, abnormal state display.
设有液晶显示，便于整定、调试，同时可实现运行监视和故障，异常状态显示。
System operation were divided into normal and abnormal operating state running state.
系统运行分为正常运行状态与异常运行状态。
System operation were divided into normal and abnormal operating state running state.
系统运行分为正常运行状态与异常运行状态。
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