If you want to look at interpolation, it is: XL-2 to XL- 1 is the upper limit, and XL-11(XL-11:XL represents the interpolation number,/kloc-. XR 1-2 to XR 1- 1 are pit emergency stop, rope breaking and buffer switches. U 1-4 to U 1- 1 are speed limiters, etc. Y2- 19 to Y2-20 are switches for car emergency stop, safety window and safety clip.
Common switches are:
Computer room: control panel emergency stop switch, phase sequence relay, thermal relay and speed limiter switch.
Shaft: upper limit switch and lower limit switch (some elevators put these two switches in the safety loop, and some elevators use these two switches to directly control the power supply).
Bottom pit: broken rope protection switch, emergency stop switch of bottom pit maintenance box and buffer switch.
Inside the car: emergency stop switch of control box
Car roof: safety window switch, safety clamp switch and emergency stop switch of car roof maintenance box.