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Attachment 2 List of Trouble Codes
● List of Main Trouble Codes for the Elevator
Section Code Trouble code for operation control system Trouble code for speed control system
A1 10 Taking-in circuit reference voltage error Same to the left
15 48V power supply trouble (one phase open) -
20 #50B ON fault Same to the left
22 #10T ON fault Same to the left
24 Safety device activated -
25 − #15BW ON fault
27 − Repeated failure (12 times/10 min.)
A2 33 − Rotary encoder fault
39 − Abnormal inverter data
3C − Magnetic pole offset value zero detection
40 − Short voltage detection
42 #40G ON fault #50B OFF fault
43 #40D ON fault−
44 #10T OFF fault #15B OFF fault
46 − #15BW OFF fault
51 − INV overvoltage detection
54 − Brake dragging detection
56 − Terminal floor stop when a
height-of-a-story table error occurs
B1 61 − Error in measuring the height of a story
B2 72 − Height of a story table sum error
C2 90 − Abnormal load detect circuit
91 − Repeated failure (6 times/10 min.)
96 − Overvoltage occurred 10 times
A7 − Frequent safety drive
E C6 Abnormal Automatic Landing device for Power
failure (trouble when in “ALP” operation)
−
●List of Trouble Codes for the Escalator
SectionCode Trouble codeSection Code Trouble code
A 11 Travel contactor ON fault B 40 TIS short-circuit relay ON fault
13 MGS activated 41 Terminal power supply not established
14 #15B ON fault 42 MGS short-circuit relay ON fault
15 STS activated 43 MGS short-circuit relay OFF fault
17 Travel contactor OFF fault 71 Overspeed
18 #15B OFF fault 72 Underspeed
1A #10X ON fault 73 #13 OFF fault
28 Solenoid activated 74 #20 OFF fault
2F Repeated failure 75 #22 OFF fault
B 30 Abnormal communication terminal
transmission
80 ROM sum error
31 Handrail stop 91 Starting SW ON fault
32 Control CPU down detection E C0 #10X OFF fault
33 Rotary encoder C2 Safety device entry buffer fault
34 #13 ON fault C4 2-speed selector switch ON fault
35 #20 ON fault C5 Safety switch activated
36 #22 ON fault C6 TIS short-circuit relay OFF fault