Yuanda 2013 model cabin ceiling Standard Function:
 
1. Full collective selective control
2. Inspection mode
3. Car call
4. Automatic rescue traveling
5. Automatic door opening
6. Automatic door closing
7. can communication system false protection
8. fire alarm 
9. Door -closing button for advance door closing
10. Door opening button
11. Door re-opening
12. Starting compensation
13. Full load bypass
14. Automatic turn off lighting and fan
15. overload protection
16. overspeed protection
17. time controlling
18.antiskid protection
19. final limit switch protection
20. automatic detection of bread contacting point.
21. frequency converter protection
22. indication of times of travel
23.low-voltage protection 
24. phase protection
25. emergency lighting
26. door lock protection
27. shift of leveling
28. error code
29. anti-jam door opening protection
30.curtan of light
31. door -closing outside door zone
32.floor indication
33.running indication of floor
34.reversal car call clear
35. auto return base in fire emergency
36. auto landing
37.auto correction of floor position signal
38. self learning of hoist way
39.false call cancel
40. reversal running protection
41.history record of trouble

[N.B: These spare parts not applicable for separately sale, just included with whole sets of elevators]