What does the yellow light on the elevator screen mean?

First, the yellow light on the elevator light curtain indicates that the elevator is running normally.

2. When there is no invading object in the protected area, the receiver of the safety light curtain sensor is in the light receiving state. At this time, the communication indicator light, red light and yellow light of the receiver should be turned off, and the protected equipment can work normally by pressing the work switch.

3. When an object intrudes into the protected area, the red indicator light of the receiver will light up, which may be that the receiver is in a shading state or the optical communication is interrupted. At this time, the protected equipment is controlled and is in a forced pause state.