Classified

Information

Elevator Construction, Installation

& Maintenance Information
Construction, Installation & Maintenance Information No. S-11-01
Title: Troubleshooting of
VFI-II Elevator (Load 450~1600kg, Speed 60~150m/min)
UAG-2T Elevator (Load 600~1050kg, Speed 60~105m/min)
Classification No. of construction, installation & maintenance information:09 (Elevator General)

Name of usage Installation Maintenance

Revisions
Edition No. Date of issue
st
1 Edition 09-June-2011
2nd Edition 05-Mar-2014

Drafted Design Cheong Kai Teck 09/06/2011

Design Dept Alvin Kwek 17/06/2011

Checked
Keh Teng Hwee 16/06/2011
Quality Assurance Dept
Toh Lai Hock 16/06/2011
Approved Design Dept Alvin Kwek 17/06/2011

Hitachi Elevator Asia Pte Ltd

Installation and Maintenance Manual No. S-11-01 P2

CONTENTS

1 OUTLINE 1-1
1.1 ABSTRACT 1-1
1.2 NOTE ON TROUBLESHOOTING 1-1
1.3 TABLE FOR TROUBLE CODE AND TROUBLE HISTORY MONITORING RECORD SHEET 1-3

2 TROUBLESHOOTING BY USING MONITOR DATA 2-1

2.1 MASTER MICON 2-1
2.2 SLAVE MICON 2-28
2.3 MONITOR DATA ANALYSIS TABLE 2-85

3 SCL TRANSMISSION 3-1

3.1 CAGE AND HALL TRANSMISSION LINE 3-2
3.2 NETWORK TRANSMISSION LINE 3-4
3.3 CONFIRM SCL COMMUNICATION AFTTER INSTALLATION AND ADJUSTMENT 3-6
3.4 RESTART INTEGRATED MICROCOMPUTER 3-6
3.4.1 Items to be checked 3-6
3.4.2 Procedure for recording data 3-6
Installation and Maintenance Manual No. S-11-01 P1-1
1.1 Abstract
This document explains the detailed troubleshooting procedure for CA series
elevators. The related operation and maintenance materials are described in the
troubleshooting procedures.

1.2 Note on Troubleshooting

When conducting field operations on repair failures to cope with complaints from
customers and/or for periodical maintenance, be sure to record the monitor contents
(Read using Mode 2) in the trouble history monitoring sheet shown in Table 1.3 regardless
whether any trouble code (TCD) is displayed or not.

(1) No.01 ~ No. 3D: History of trouble occurrences

The history log of the TCDs is recorded when the TCD changes, along with the years,
month, hours, minutes and seconds according to the timing of occurrence of the TCD.
However, only the highest level TCD at the time of the occurrence is displayed. Hence,
it is important to check the list of trouble occurrence history to verify all the troubles
that has occurred.
Please refer to the trouble code tables shown in Table 1.1 and 1.2 for the names of the
TCDs.

(2) No. 3E ~ No. 45: Operation code monitor

The history log of the operation code (hereby known as ACD) is recorded according to
the timing of occurrence of the ACD changes.

(3) No. 46 ~ No. 63: List of trouble occurred.

The history log of all the trouble occurrences is recorded (multiple troubles that
occurred simultaneously are also recorded).
The upper byte (bits 15~8) is allocated to the Master TCDs, and the lower byte (bit
7~0) is allocated to the Slave TCD.

(4) No. 64 ~ No. 83: Elevator status monitor

The status of the elevator is recorded when a problem occurs or when an emergency
stop button is pressed. The first occurrence is recorded on No. 78 ~ No. 83, while
subsequent occurrences is recorded on No. 6C ~ No. 77.

(5) No. 84 ~ No. DA: Elevator status history monitor

Unsteady-state operations of the elevator, including problems, are recorded.
Installation and Maintenance Manual No. S-11-01 P1-2

(6) Reading of TCDs

The trouble codes are split into Master Micon TCD and Slave Micon TCD. There are 3
ways of reading TCD at site:

(a) Check TCD using the 7-digit LED on CA9-MPU;

Master Micon TCD and Slave Micon TCD are differentiated by the 4th digit. A lit top
segment means it is Master Micon TCD, while a lit bottom segment means it is a
Slave Micon TCD.
The last 2 digits will display the TCD number. See Figure 1.1 and 1.2 below:

Figure 1.1: Master Micon TCD 10 Figure 1.2: Micon Slave TCD 10

(b) Check TCD using SoftDebugger program;

(c) Check TCD using maintenance console.

Note: 1. The trouble history may be cleared off after recording.

2. In the event of any TCD, refer to this manual for analysis and determining
of the cause.
Installation and Maintenance Manual No. S-11-01 P1-3

1.3 Table for Trouble Code and Trouble History Monitoring Record Sheet

The classifications and the approach to resolve TCDs are shown in Table 1.1 below.

Table 1.1: Classification of TCDs

Rank Purpose Sub- Approach
level
A Operation is prohibited (emergency stop). A1 Function disabled (# 50B, # 5, # 5R: OFF,
Restart is not possible. inverter output suppressed).
A2 Only restart is prohibited (# 5, # 5R: OFF),
door can be opened and closed.
B Operation is prohibited (emergency stop). B1 Only landing the elevator to the nearest
Restart is possible. floor is possible (# 50B is turned ON 3s
after the elevator has stopped).
B2 Low speed operation is possible (terminal
floor correction operation is possible).
C Restart is not possible after landing at the C1 Function disabled (# 50B: OFF).
nearest service floor.
C2 Only restart is prohibited (# 5, # 5R: OFF).

D Duplex, group control operation prohibited. D Simplex and backup operation.

E No operation control. E Only memory indication.

The list of TCDs and trouble history monitoring sheet are shown in Table 1.2 & 1.3
respectively.

Note: ○ indication – Self-holding TCD
TCD clears automatically after power reset;
● indication – Memory Self-holding TCD
TCD still exists even after power reset.
Installation and Maintenance Manual No. S-11-01 P1-4

Table 1.2 CA Elevators Trouble Code Table

TCD
Error Record TCD Description
Monitor
Class TCD
Master Micon Slave Micon Bit Code Master Micon Hold Slave Micon Hold

AVR1 power supply voltage AVR1 power supply voltage

10 rxcvch xcvchs 0
abnormality abnormality
11 tx50bnt[1] 1 #50B ON failure ○

ztrbh[0]/vtrbh[0]
12 txmcn txsidnc 2 #5 ON failure Slave Micon down
Integrated Micon and Slave Micon
13 tx99g tvicom 3 Safety device abnormality
A1 communication error
14 rswdt txdinpt[1] 4 Software WDT operation detected Double input buffer circuit failure
15 tx97[0] txipcht[1] 5 AVR1 P48V power supply abnormality INV - Suppression circuit OFF failure
Maintenance mode input signal
16 tx43ert[1] 6
abnormality
17 nelno 7 Abnormality in elevator no.
Consecutive 3 times occurrence of
18 t102ct tvx50bnt[1] 0 ○ #50B ON failure ○
open lock trouble
ORS frequent detection when door
○
ztrbh[0]/vtrbh[0]

19 t102lrash 1
open
1A t40der tx15bnt[1] 2 #40D OFF failure #15B ON failure
1B tvspc 3 Abnormal specifications setting
A1
1C ti60supt[1] 4 INV - Suppression circuit ON failure
1D 5
1E 6
Repeated failure
1F t59ce 7 ○
(12 times/10min)
20 0
21 1
ztrbh[1]/vtrbh[1]

22 2
23 3
A1
24 4
25 5
26 6
27 7
28 txvvcht[1] 0 Power supply phase failure.
29 1
ztrbh[1]/vtrbh[1]

2A txacov 2 CNV - AC over voltage detection

2B 3
A1
2C 4
2D 5
2E 6
2F 7
Installation and Maintenance Manual No. S-11-01 P1-5

TCD
Error Record TCD Description
Monitor
Class TCD
Master Micon Slave Micon Bit Code Master Micon Hold Slave Micon Hold

30 tucmp 0 UCMP abnormal

Detection of over speed at low speed
31 tgrslt[1] 1
(motor)
Rotary encoder failure (Locked during

ztrbh[2]/vtrbh[2]
32 treer2t[1] 2 ○
travel)
Rotary encoder failure (Locked during
A2 33 treer1t[1] 3 ○
start)
34 4
35 vrunt[1] 5 Rotary encoder reverse wiring
36 txbcsnt[1] 6 Brake ON failure ●
37 tv47t[1] 7 Reverse motion detection (motor) ○
Automatic restoration lock during ○
38 teqdect 0
earthquake ●
39 tispc 1 INV Micon specification abnormal
3A tisume 2 INV Micon sum error
ztrbh[2]/vtrbh[2]

Failure of rotary encoder used in

3B txrezeh 3 ○
detection of magnetic poles
A2 Detection of zero offset for magnetic
3C treer0f 4
poles
3D 5
Speed deviation is abnormal during
3E tvspdfat 6 ●
maintenance operation (lowest floor)
Starting lock during maintenance
3F treerat 7 ●
operation (lowest floor)
40 ttrsch 0 Detection of insufficient voltage
Micro-running operation out of door
41 tx5acf tmcrovr 1 #5A OFF failure (UAG-2T only) ○
zone
ztrbh[3]/vtrbh[3]

42 tx40ger tx50bft[1] 2 #40G ON failure ○ #50B OFF failure

A2
43 tx40der tsds1onh[1] 3 #40D ON failure ○ SDS1 simultaneous ON trouble
44 txmcf tx15bft[1] 4 #5 OFF failure #15B OFF failure
45 tx5rft[1] vtshvslp 5 #5R OFF failure Sheave slip detection ○
46 tx41er 6 Operation mode input buffer ON failure
47 tx15bsft[1] 7 #15BSW OFF failure
48 tvccht[1] 0 Detection of insufficient current
49 txiigbte[1] 1 INV - IPM error detected 3 times ○
INV – HCT neutral phase current is
4A tihct0e 2
ztrbh[3]/vtrbh[3]

abnormal
CNV – HCT neutral phase current is
4B tchct0e 3
A2 abnormal
4C txcpcht[1] 4 CNV - Suppression circuit OFF failure
4D tc60supt[1] 5 CNV - Suppression circuit ON failure
4E 6
Power failure detection signal is
4F tv97pert[1] 7
abnormal
Installation and Maintenance Manual No. S-11-01 P1-6

TCD
Error Record TCD Description
Monitor
Class TCD
Master Micon Slave Micon Bit Code Master Micon Hold Slave Micon Hold

50 txiigbt 0 INV - IPM error detected

51 txiov 1 INV - Detection of over voltage
52 txcnvft[1] 2 CNV trigger failure

ztrbh[4]/vtrbh[4]
53 trezrset 3 Magnetic rotation direction flag not set

A2 54 tdskbrk 4 Apply brake travel detected ●

DC voltage confirmation signal
55 tphcer 5 ○
abnormal
Temporary stop at terminal floor due to
56 tp900re 6
floor height table
57 txcnvnt[1] 7 CNV abnormal trigger
Detection of phase reversal in power
58 txrvt[1] 0
supply
59 txcigbte[1] 1 CNV - IPM error detected 3 times ○
ztrbh[4]/vtrbh[4]

5A txioc 2 INV - CT over current detection

INV - Insufficient base voltage
5B txigdve 3
A2 detection
5C txcigbt 4 CNV - IPM error detected
5D txcov 5 CNV - Detection of over voltage
5E txcoc 6 CNV - CT over current detection
CNV - Insufficient base voltage
5F txcgdve 7
detection
60 0
61 pmstat 1 Floor-height measurement error
Door machine power supply cut
62 t97drt[1] tvspdft[1] 2 Abnormal speed deviation of motor
ineffective
ztrbh[5]/vtrbh[5]

Rear door machine power supply cut

63 3
t97drrt[1] ineffective
B1 Detection of over speed at high speed
64 tgrsht[1] 4
(motor)
65 5
Speed deviation abnormality on
66 tvspdfbt 6 maintenance operation (mid floor,
highest floor)
Starting lock on maintenance
67 treerbt 7
operation (mid floor, highest floor)
68 0
69 1
ztrbh[5]/vtrbh[5]

6A 2
6B txbcsft[1] 3 Brake OFF failure
B1
6C 4
6D 5
6E 6
6F 7
Installation and Maintenance Manual No. S-11-01 P1-7

TCD
Error Record TCD Description
Monitor
Class TCD
Master Micon Slave Micon Bit Code Master Micon Hold Slave Micon Hold

70 tp900ps 0 Synchronized position error

Abnormal SDS speed2
71 tsdsver2 1
(emergency stop)

ztrbh[6]/vtrbh[6]
72 tp900r 2 Sum error for floor height table

B2 73 3
74 4
75 5
76 6
77 7
78 0
79 1
ztrbh[6]/vtrbh[6]

7A 2
7B 3
B2
7C 4
7D 5
7E 6
7F 7
tmifc Multiple FMLX, FMLY, #100RXA, B
80 0
OFF failure
81 t97drft 1 Door machine supply OFF failure
ztrbh[7]/vtrbh[7]

82 tx94bt[1] 2 Door thermal is activated

83 tfmlxnt[1] 3 FMLX ON failure
C1
84 tfmlynt[1] 4 FMLY ON failure
85 t100rxabnt[1] 5 #100RXA, #100RXB ON failure
86 6
87 7
88 0
89 1
ztrbh[7]/vtrbh[7]

8A 2
8B 3
C1
8C 4
8D 5
8E 6
8F 7
Installation and Maintenance Manual No. S-11-01 P1-8

TCD
Error Record TCD Description
Monitor
Class TCD
Master Micon Slave Micon Bit Code Master Micon Hold Slave Micon Hold

Cage I/O (SCLB3) transmission

90 t97c tv65rg 0 Load detection circuit abnormal
abnormality
91 t59cec 1 Repeated failure (6 times/10min) ○
Multiple restart in Integrated Micon,
92 tmresete 2
causing nearest floor stop
93 tx50fth txsdsr 3 Fin thermal operation SDS ON failure
C2
94 tx15bsnt[1] 4 #15BSW ON failure

ztrbh[8]/vtrbh[8]
95 tphsberf tvtrqft[1] 5 Multibeam ON/OFF failure Disk brake drag is detected ●
More than 10 occurrences of over
96 rsumfs[0] txovce[1] 6 ROM sum error 1
voltage
Specification sum error of site
97 rsumf[0] tadjsum 7 ROM sum error
adjustment area
98 0
99 tihctdn 1 INV - HCT failure
9A 2
9B 3
C2
ztrbh[8]/vtrbh[8]

9C tx5acn 4 #5A ON failure (UAG-2T only)

9D tchctdn 5 CNV - HCT failure
9E 6
9F 7
A0 txdza 0 DZA PosiTector OPEN failure
A1 txdzb 1 DZB PosiTector OPEN failure
A2 txpsoner 2 FML PosiTector OPEN failure
A3 3
C2
A4 txsidnf[1] 4 INV Micon down more than 6 times
ztrbh[9]/vtrbh[9]

A5 tovload 5 Motor overload

A6 talper 6 ALP operation error
Frequent occurrences of 99E rescue
A7 tx5rnt[1] t99ee 7 #5R ON failure ○
operation
A8 tfrun2h 0 Detection of free running ●
Frequent occurrences of SDS forced
A9 tx40dge tsdsvere 1 #40D contactor failure
speed reduction
AA txpsofer 2 FML PosiTector CLOSE failure
AB 3
C2
AC 4
ztrbh[9]/vtrbh[9]

Inspection panel switches abnormality

AD tipswabnrml 5
(UAG-2T only)
Open lock causing travel till other floor
AE t102ttk 6
(1 time)
AF tphbaer 7 Multibeam sensor failure
Installation and Maintenance Manual No. S-11-01 P1-9

TCD
Error Record TCD Description
Monitor
Class TCD
Master Micon Slave Micon Bit Code Master Micon Hold Slave Micon Hold

B0 tdrtbt[1] 0 Inverter door machine trouble

B1 tdrdownt[1] 1 Inverter door machine Micon down

ztrbh[10]/vtrbh[10]
B2 tdrtbrt[1] 2 Rear inverter door machine trouble
Rear inverter door machine Micon
D B3 tdrdownrt[1] 3
down
C2
B4 4
B5 5
B6 6
B7 7
B8 0
B9 1
ztrbh[10]/vtrbh[10]

BA 2

D BB 3
C2 BC 4
BD 5
BE 6
BF 7
Communication among elevators in a
C0 t43pt[1] 0
group is abnormal
C1 1
ztrbh[11]/vtrbh[11]

Standby group micro-controller

C2 tbmicn_z 2
abnormal
E C3 tamicn_z 3 Active group micro-controller abnormal
D C4 tm97h 4 Common hall call circuit abnormal
C5 tm97 5 Group micro-controller down
Simplex elevator hall call circuit
C6 tz97h 6
abnormal
C7 7
C8 0
C9 tfmlxft[1] 1 FMLX OFF failure
ztrbh[11]/vtrbh[11]

CA tfmlyft[1] 2 FMLY OFF failure

CB t100rxabt[1] 3 #100RXA, B OFF failure
E CC 4
D
Wheelchair/sub-OPB communication
CD tb3rs485err 5
error
CE 6
CF 7
Installation and Maintenance Manual No. S-11-01 P1-10

TCD
Error Record TCD Description
Class TCD Monitor
Master Micon Slave Micon Bit Code Master Micon Hold Slave Micon Hold
D0 0
D1 tdrlst[1] tvtrqer 1 CLS, OLS simultaneous ON failure Torque measurement abnormal
D2 2

ztrbh[12]/vtrbh[12]
Door machine power supply OFF
D3 t97drft[1] 3
failure
E Occurrence history log of INV Micon
D4 txsidnf[0] 4
WDT activation
D5 5
Occurrence history log of INV IPM
D6 txiigbte[0] 6
error
More than 5 occurrences of over
D7 t103 txovce[0] 7 Occurrence of close lock or open lock
voltage
t101l Continuous ORS activation during door
D8 0 ○
t101lf closing
t102l Continuous ORS activation during door
D9 1
ztrbh[12]/vtrbh[12]

t102lf opening
DA tihcter 2 INV – Hall CT abnormal
E DB 3
DC 4
DD 5
DE tzer 6 Z-phase error pulse
DF txvch 7 Power supply momentary stop
E0
E1
ztrbh[13]/vtrbh[13]

E2
t101lr Continuous ORS activation during rear
E3
door closing
E
E4
E5
Occurrence history log of CNV IPM
E6 txcigbte[0]
error
E7
E8 tvmicro Micro-levelling abnormal
E9
t102lr Continuous ORS activation during rear
ztrbh[13]/vtrbh[13]

EA tchcter CNV - Hall CT abnormal

door opening
EB
E EC
ED tp900psc Preparation for travel irrationality
EE
Permission for floor height
EF tiintfe specification ON during installation SDS speed error 1 ●
tsdsver1
work
 Installation and Maintenance Manual No. S-11-01 P1-11

No. Display Description No. Display Description No. Display Description No. Display Description Label Notes No. Display Description Label Notes
01 Final TCD 3E Final TCD Final ACD > E7 E6 E5 E4 E3 E2 E1 E0 E7 E6 E5 E4 E3 E2 E1 E0 84 00 No. of occurrences of emergency stop occurrences wvbh C0 00 No. of occurrences of close lock wzbh
02 Final TCD Occurrence Year & Month 3F Final TCD Last ACD 50 TCD 85 00 No. of stops due to integrated microcomputer C1 00 No. of occurrences of open lock
03 Final TCD Occurrence Day & Time 40 Final TCD " 2ACD > EF EE ED EC EB EA E9 E8 EF EE ED EC EB EA E9 E8 86 00 No. of times of INV microcomputer down C2 00 No. of occurrences of N contact OFF failure
04 No. of Occurrence for Final TCD 41 Final TCD " 3ACD 51 TCD 87 00 No. of times of magnetic poles offset tuning C3 00 No. of occurrences of operation mode input signal abnormality
05 First TCD 42 Final TCD " 4ACD > F7 F6 F5 F4 F3 F2 F1 F0 F7 F6 F5 F4 F3 F2 F1 F0 88 00 Contents of load detection trouble C4 00 Door micro controller trouble record
06 First TCD Occurrence Year & Month 43 Final TCD " 5ACD 52 TCD 89 00 Number of times of synchronous position sychronizing failure C5 00
07 First TCD Occurrence Day & Time 44 Final TCD " 6ACD > FF FE FD FC FB FA F9 F8 FF FE FD FC FB FA F9 F8 8A 00 SDS deceleration error1 C6 00 No. of times of nearest floor rescue due to high pitch noise
08 No. of Occurrence for Initial TCD 45 Final TCD " 7ACD 53 TCD 8B 00 SDS deceleration error2 C7 00 Door micro controller trouble record
09 No. of Trouble Occurrence > 17 16 15 14 13 12 11 10 17 16 15 14 13 12 11 10 64 00 8C 00 SDS read error C8 00
0A Last TCD 46 TCD 65 00 Number of occurrence of specification sum error 8D 00 Contents of SDS ON trouble C9 00
0B Last TCD Occurrence Year & Month > 1F 1E 1D 1C 1B 1A 19 18 1F 1E 1D 1C 1B 1A 19 18 66 00 8E 00 Z-phase abnormal CA 00
0C Last TCD Occurrence Day & Time 47 TCD 67 00 Number of occurrence of safety drive 8F 00 Contents of free run detection CB 00
0D No. of Occurrence for First TCD > 27 26 25 24 23 22 21 20 27 26 25 24 23 22 21 20 68 00 Number of occurrence A~C rank trouble 90 00 CC 00
0E " 2 TCD 48 TCD 69 00 91 00 CD 00
0F " 2 TCD Occurrence Year & Month > 2F 2E 2D 2C 2B 2A 29 28 2F 2E 2D 2C 2B 2A 29 28 6A 00 92 00 CE 00
10 " 2 TCD Occurrence Day & Time 49 TCD 6B 00 93 00 CF 00
11 No. of Occurrence for "2 TCD > 37 36 35 34 33 32 31 30 37 36 35 34 33 32 31 30 6C p900: Car Position (Final) 94 00 No. of times of delay in digital stop floor detection wpbh D0 00 wzbhdf
12 " 3 TCD 4A TCD 6D vxsped: Elevator Speed 95 00 No. of times of power failure of IRQ D1 00
13 " 3 TCD Occurrence Year & Month > 3F 3E 3D 3C 3B 3A 39 38 3F 3E 3D 3C 3B 3A 39 38 > 96 00 No. of times of over-running for digital floor selector D2 00
14 " 3 TCD Occurrence Day & Time 4B TCD 6E rxcvch xfml x40d x50bc x10t x50b x15b 97 00 No. of times of insufficient floor pitch D3 00
15 No. of Occurrence for "3 TCD > 47 46 45 44 43 42 41 40 47 46 45 44 43 42 41 40 > x5r x5 x50es x40g xdzb xdza xdls xuls 98 00 No. of times of over-voltage detection D4 00 wzbhdr
16 " 4 TCD 4C TCD 6F zp90z z92 z62b z61b z50bk z60 z12a z11a 99 00 Contents of synchronous position abnormality D5 00
17 " 4 TCD Occurrence Year & Month > 4F 4E 4D 4C 4B 4A 49 48 4F 4E 4D 4C 4B 4A 49 48 > vxsds8u vxsds7u vxsds6u vxsds5u vxsds4u vxsds3u vxsds2u vxsds1u 9A 00 Excessive number of floors in floor height measurement D6 00
18 " 4 TCD Occurrence Day & Time 4D TCD 70 vxsds8d vxsds7d vxsds6d vxsds5d vxsds4d vxsds3d vxsds2d vxsds1d 9B 00 No. of stoppages during the floor height measurement D7 00
19 No. of Occurrence for "4 TCD > 57 56 55 54 53 52 51 50 57 56 55 54 53 52 51 50 71 00 zacd: Operation Permission Code 9C 00 Contents of SAE data abnormality D8 00 For project use wzbhs
1A " 5 TCD 4E TCD 72 vstath: 9D 00 D9 00
1B " 5 TCD Occurrence Year & Month > 5F 5E 5D 5C 5B 5A 59 58 5F 5E 5D 5C 5B 5A 59 58 73 > xrpmc (acr) 9E 00 DA 00
1C " 5 TCD Occurrence Day & Time 4F TCD 74 v65rg : Load detection value 9F 00
1D No. of Occurrence for "5 TCD > 67 66 65 64 63 62 61 60 67 66 65 64 63 62 61 60 75 wrms01m: Duty Check 1 minute A0 00
1E " 6 TCD 50 TCD 76 > v12 v11 v10h v100 v60asr vi60supq v50 v50bk A1 00
1F " 6 TCD Occurrence Year & Month > 6F 6E 6D 6C 6B 6A 69 68 6F 6E 6D 6C 6B 6A 69 68 77 sedfb: DC Voltage Detection Level A2 00
20 " 6 TCD Occurrence Day & Time 51 TCD 78 p900: Car Position (First) A3 00
21 No. of Occurrence for "6 TCD > 77 76 75 74 73 72 71 70 77 76 75 74 73 72 71 70 79 vxsped: Elevator Speed A4 00 No. of times of microlevelling abnormality wrbh
22 " 7 TCD 52 TCD > A5 00
23 " 7 TCD Occurrence Year & Month > 7F 7E 7D 7C 7B 7A 79 78 7F 7E 7D 7C 7B 7A 79 78 7A rxcvch xfml x40d x50bc x10t x50b x15b A6 00 No. of times of reverse motion
24 " 7 TCD Occurrence Day & Time 53 TCD > x5r x5 x50es x40g xdzb xdza xdls xuls A7 00
25 No. of Occurrence for "7 TCD > 87 86 85 84 83 82 81 80 87 86 85 84 83 82 81 80 7B zp90z z92 z62b z61b z50bk z60 z12a z11a A8 00 Contents of motor overload abnormality
26 " 8 TCD 54 TCD > vxsds8u vxsds7u vxsds6u vxsds5u vxsds4u vxsds3u vxsds2u vxsds1u A9 00 Contents of photo SDS shelter plate abnormality
27 " 8 TCD Occurrence Year & Month > 8F 8E 8D 8C 8B 8A 89 88 8F 8E 8D 8C 8B 8A 89 88 7C vxsds8d vxsds7d vxsds6d vxsds5d vxsds4d vxsds3d vxsds2d vxsds1d AA 00 History log [1] of UMCP abnormality
28 " 8 TCD Occurrence Day & Time 55 TCD 7D zacd: Operation Permission Code AB 00 History log [2] of UMCP abnormality
29 No. of Occurrence for "8 TCD > 97 96 95 94 93 92 91 90 97 96 95 94 93 92 91 90 7E vstath: AC 00 UCMP version display
2A " 9 TCD 56 TCD 7F > xrpmc (acr) AD 00 No. of times of Z-phase pulse ON/OFF failure
2B " 9 TCD Occurrence Year & Month > 9F 9E 9D 9C 9B 9A 99 98 9F 9E 9D 9C 9B 9A 99 98 80 v65rg : Load detection value AE 00 No. of times of Z-phase miss-pulse detection
2C " 9 TCD Occurrence Day & Time 57 TCD 81 wrms01m: Duty Check 1 minute AF 00
2D No. of Occurrence for "9 TCD > A7 A6 A5 A4 A3 A2 A1 A0 A7 A6 A5 A4 A3 A2 A1 A0 82 > v12 v11 v10h v100 v60asr vi60supq v50 v50bk B0 00
2E " 10 TCD 58 TCD 83 sedfb: DC Voltage Detection Level B1 00
2F " 10 TCD Occurrence Year & Month > AF AE AD AC AB AA A9 A8 AF AE AD AC AB AA A9 A8 B2 00
30 " 10 TCD Occurrence Day & Time 59 TCD B3 00
31 No. of Occurrence for "10 TCD > B7 B6 B5 B4 B3 B2 B1 B0 B7 B6 B5 B4 B3 B2 B1 B0 B4 00
Name of Investigator Operation Time
32 " 11 TCD 5A TCD B5 00 No. of restarts of integrated micro-computer
33 " 11 TCD Occurrence Year & Month > BF BE BD BC BB BA B9 B8 BF BE BD BC BB BA B9 B8 B6 00 No. of times of program sum error
Name of Installation location Model
34 " 11 TCD Occurrence Day & Time 5B TCD B7 00 Counter for unknown interrupt signal
35 No. of Occurrence for "11 TCD > C7 C6 C5 C4 C3 C2 C1 C0 C7 C6 C5 C4 C3 C2 C1 C0 B8 00 No. of times of erroneous occurrence of ECC
Name of building
36 " 12 TCD 5C TCD B9 00
37 " 12 TCD Occurrence Year & Month > CF CE CD CC CB CA C9 C8 CF CE CD CC CB CA C9 C8 BA 00
Investigation Date
38 " 12 TCD Occurrence Day & Time 5D TCD BB 00
39 No. of Occurrence for "12 TCD > D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0 BC 00
Malfunction Date
3A " 13 TCD 5E TCD BD 00
3B " 13 TCD Occurrence Year & Month > DF DE DD DC DB DA D9 D8 DF DE DD DC DB DA D9 D8 BE 00
Number of passengers Trapped People
3C " 13 TCD Occurrence Day & Time 5F TCD BF 00
3D No. of Occurrence for "13 TCD
Installation and Maintenance Manual No. S-11-01 P2-1

2 Troubleshooting by using monitor data

2.1 Master Micon

ZTCD 10 AVR1 power supply Master Micon Slave Micon

VTCD 10 voltage abnormality rxcvch xcvchs

To confirm supply voltage detection signal (P15DN, P48DN) input on CAIO.

To confirm if the signal for AVR1 output voltage detection is normal.
(1) Check the voltage between SD2-A5 (P15) and SD2-A6 (GD) on CA9-MPU is 15V.
(2) Confirm AVR1 output voltage value:
P5V (4.75V～5.25V);
P15V (13.5V～16.5V);
P24V (21.6V～26.4V);
P48V (45.5V～52.8V);
If any of the output voltage is abnormal, replace AVR1.
(3) Confirm that AVR's output terminal (CN4-B4, CN4-B3) voltage (P15DN, P48DN) is normal. Normal
condition is: (45.5V ~ 52.8V);
(4) Check for poor contact at the ¥FF-A10 & ¥FF-B10 connector of the CAIO.
(5) Check the conditions for all fuses. Replace if blown.
Installation and Maintenance Manual No. S-11-01 P2-2

Master Micon
ZTCD 11 #50B ON failure
tx50bnt[1]

This is activated when a condition occurs causing the output buffer of the #50B contactor not to turn
ON, while the input buffer is turned ON continuously for 300ms at the Master Micon and 500ms at the
Slave Micon.
(1) Check the data in the circuit diagram below.

(2) Check the buffers shown below.

z50bk, x50b
s50bk, v50bk, x50bs
If any abnormality is found, replace CAIO.
(3) Check the #50B relay
If any fixation, adhesion, or short-circuited wiring is found
Replace the #50B relay with a new one.
(4) Check the LED of #50B on the CA9-MPU (whether they are continuously lit).
If continuously lit,
replace the CA9-MPU with a new one.
(5) Check ¥FB and ¥FD connectors on the CA9-MPU and CAIO for poor contact. Disconnect and re-insert
to check for wire breakages or short-circuits.
Replace ¥FB and ¥FD connectors and/or their wiring, if
necessary.
Installation and Maintenance Manual No. S-11-01 P2-3

Master Micon
ZTCD 12 #5 ON failure
txmcn

This is activated when a condition occurs causing the output buffer of #5 contactor not to turn ON,
while the contact input of #5 contactor is turned ON continuously for 500ms.
(1) Check the data in the circuit diagram below.

(2) Check the buffers shown below.

z5wk, x5
(3) Check the status of the #5 contactor.
If any fixation, adhesion, or short-circuited wiring is found
Replace the #5 contactor with a new one.

Master Micon
ZTCD 13 Safety device abnormality
tx99g

This is detected when a safety device, such as a governor rope switch, is activated.

(1) Check the wiring of all safety devices connected between ¥11L-11 and ¥11L-6 at terminal blocks ¥11L
for poor contact or broken wires. Check that all connections are correct.
(2) Check for continuity for every switch. There should be continuity under normal circumstances.
If any
abnormality in continuity, replace the switch.
(3) Check the data in the circuit diagram shown below.
Installation and Maintenance Manual No. S-11-01 P2-4

Master Micon
ZTCD 14 Software WDT operation detected
rswdt

This is activated when sequential processing is not carried out periodically.

(1) Record the data of rswdt.

(2) When power supply of the MPU is turned ON and OFF 8 times to confirm its operation, the Slave Micon
may hang. On such occasion, reset the RAM of the Slave Micon (address: 0x8C000000) to 0, and then
turn ON and OFF the power supply to return it to the normal state.

AVR1 P48V power supply Master Micon

ZTCD 15
abnormality tx97[0]

This is detected when AVR1 48V power supply is checked and no-voltage state occurs more than 10
times in 12s.
(1) Confirm if there is any change in voltage signal x97.
(2) Check if AVR1 48V circuit voltage is normal, see ZTCD 10 trouble.
(3) Check if the 48V circuit fuse is blown. → Replace the fuse.
(4) If all the above are normal, AVR1 may be faulty. Replace AVR1.
Installation and Maintenance Manual No. S-11-01 P2-5

Maintenance mode input signal Master Micon

ZTCD 16
abnormality tx43ert[1]

To confirm if the operation mode selection switch (car top maintenance, incage maintenance) status is
reasonable (In case of through elevator, if the front and rear inspection switches are operated
simultaneously, this is considered abnormal.)
(1) Check the data in the circuit diagram below.

(2) Confirm that the signals are functioning correctly when maintenance switch wiring in the OPB switch
box and on the apparatus box are switched ON. Check the wiring if abnormal.
(3) Check for poor contact in connection between tailcord and apparatus box.
Check the condition of the connector and confirm if there is any breakage or short circuit in the cable.

Master Micon
ZTCD 17 Abnormality of elevator no.
nelno

The elevator no. data is used for selection of the respective data at the master Micon. The data
structure and setting are as follows. If this condition is not satisfied, abnormality will be activated.
Check the data for ielno.

ielno

Elevator No. (Hexadecimal)

One’s compliment of Hex representation of

Elevator number

Example: No. 1 – 0xFE01,

No. 2 – 0xFD02,
No. 3 – 0xFC03
Installation and Maintenance Manual No. S-11-01 P2-6

Consecutive 3 times occurrence of Master Micon

ZTCD 18
open lock trouble t102ct

This is activated when an open lock is detected 3 times consecutively.

(1) Check the data for t102tc data (Number of reading occurrences)
(2) Check the OLS and adjust the settings.
(3) Ensure that door surroundings (doors hanger rollers, car door sill, landing door sill) is cleared of dust.
(4) Check the door opening and closing time.
(5) Check door power supply circuit. Measure the voltage between ¥Y3-16, ¥Y3-17 whether there is
AC110V output.

ORS frequent detection when door Master Micon

ZTCD 19
open t102lrash

This is activated when the ORS (overload reverse system) is activated 16 times (ZTCD D9 is detected)
as the door is opened and when the operations of moving to another floor are repeated 3 times.
(1) Check for factors preventing the door from being opened (check for deformed door, remove the dust
from the sill groove, remove anything that prevents the door from being opened).
(2) Confirm the operation of ORS (front: xors, back: xorsr).
 After removing factors preventing the door from being opened, reset the power supply and repeat
till all problems are cleared.
Installation and Maintenance Manual No. S-11-01 P2-7

Master Micon
ZTCD 1A #40D OFF failure
t40der

This is activated if the landing door is opened for more than 5s while the elevator is not at that floor, it
is deemed that it has exceeded the time to get into the hoistway and the elevator will cease to operate.
(1) Check that there is no personnel on top of the cage, in the hoistway or in the pit.
(2) Find out the reason why #40D is OFF.
Check whether the wiring to all the door switches if broken, and landing door switch setting is
correct.
Check for poor contact at ¥FF-A6 on CAIO.
(3) Check for welding or deformation at gate switch, resulting in ON failure.
Check for poor contact at ¥FF-B7 on CAIO.
(4) Restore rationality through below procedures:
(a) Switch to fireman operation;
(b) Switch to maintenance operation;
(c) Activate E-stop switch or any safety device;
(d) Perform Mode 6E (#40D abnormal OFF detection bypass).

Master Micon
ZTCD 42 #40G ON failure
tx40ger

This is activated when the car door is closed (x40g ON) and the open limit switch is also activated (xols
ON).
(1) Check the relationship between GS, input buffer x40g, and LED.
Check input buffer for OLS. Front-side: xols and rear side: xolsr.
Note: Check the rear side only for actual through and alternate through elevators.
→ GS turns ON when the door is closed (40GS LED on CAIO and 40G LED on CA9-MPU light up).
(2) Check the setting of GS and confirm its operation.
(3) Check the setting of OLS and confirm its operation.
Installation and Maintenance Manual No. S-11-01 P2-7A

Master Micon
ZTCD 41 #5A OFF failure
tx5acf

This is activated when output buffer of the #5A contactor is turned ON, while the contact input of #5A contactor
is not turned ON continuously for 500ms.

(1) Check the data in the circuit diagram below.

(2) Check the buffers shown below.

z5wk, x5a
(3) Check the status of the #5A contactor.
If any fixation, adhesion, or contact failure is found
Replace the #5A contactor with a new one.
Installation and Maintenance Manual No. S-11-01 P2-8

Master Micon
ZTCD 43 #40D ON failure
tx40der

This is activated when the hall door is closed (x40d is ON) and the open limit switch is also activated
(xols ON).
(1) Check the relationship between DS, input buffer x40d, and LED.
Check input buffer for OLS. Front-side: xols and rear side: xolsr.
Note: Check the rear side only for actual through and alternate through elevators.
→ DS turns ON when the door is closed (40DS LED on CAIO and 40D LED on CA9-MPU light up).
(2) Check the setting of DS and confirm its operation.
(3) Check the setting of OLS and confirm its operation.

Master Micon
ZTCD 44 #5 OFF failure
txmcf

This is activated when the output buffer of the #5 contactor is turned ON, while the contact input of #5
contactor is not turned ON continuously for 500ms.
(1) Check the data in the circuit diagram shown below.

(2) Check the buffers shown below.

z5 and x5
(3) Check the #5 contactor.
If any fixation or contact failure is found
Replace the #5 contactor with a new one.
Installation and Maintenance Manual No. S-11-01 P2-9

Master Micon
ZTCD 45 #5R OFF failure
tx5rft[1]

This is activated when the output buffer of #5R contactor is turned ON, while the contact input of #5R
contactor is not turned ON continuously for 500ms.
(1) Check the data in the circuit diagram shown below.

(2) Check the buffers shown below.

z5r and x5r
(3) Check the #5R contactor.
If any fixation or contact failure is found
Replace the #5R contactor with a new one.
Installation and Maintenance Manual No. S-11-01 P2-10

Operation mode input buffer On Master Micon

ZTCD 46
failure tx41er

It is judged as a failure when a run command is input (for example, when the oncage UP button is
pressed) before the system enters the corresponding operation mode.
(1) Check the data in the circuit diagram shown below.
Installation and Maintenance Manual No. S-11-01 P2-11

Door machine power supply cut Master Micon

ZTCD 62
ineffective t97drt[1]

Check at VCB PCB, whether the SCR to control the door machine supply is in the OFF state.

(1) Check the data in the circuit diagram shown below.

(2) When z97dr = OFF (Activation of E-stop), measure the voltage between ¥Y3-16, ¥Y3-17 at car top
whether it is 0V.
(3) When z97dr = OFF, measure the voltage between VCB PCB ¥MF2-3 and ground. If it is 0V,
check if MF-3 is connected to ground by mistake. If no mistake in wiring, replace VCB PCB.

Multiple FMLX, FMLY, #1000RXA, Master Micon

ZTCD 80
B OFF failure tmifc

This is activated during micro-levelling or running open operation, if SCB PCB #100RXA or #100RXB
relays or FMLX or FMLY OFF failure happens at least 6 times. Micro-levelling and running open
operation is temporarily disabled until power reset to elevator.
(1) Check #100RXA, #100RXB, FMLX and FMLY whether they are working properly.
(2) Check if ZTCD C9 and ZTCD CA also occur. If so, troubleshoot according to procedure stated
under ZTCD C8 and ZTCD CA.
(3) Check whether all connectors on SCB PCB are inserted properly.
(4) Check ¥FE-B6, ¥FE-A6, ¥FE-B7 wirings.
Installation and Maintenance Manual No. S-11-01 P2-11A

Rear door machine power supply Master Micon

ZTCD 63
cut ineffective t97drrt[1]

Check at VCB PCB, whether the SCR to control the rear door machine supply is in the OFF state.

(1) Check the data in the circuit diagram shown below.

(2) When z97drb = OFF (Activation of E-stop), measure the voltage between ¥Y4-17, ¥Y4-18 at car top
whether it is 0V.
(3) When z97drb = OFF, measure the voltage between VCB PCB ¥MF2-4 and ground. If it is 0V,
check if MF-3 is connected to ground by mistake. If no mistake in wiring, replace VCB PCB.
Installation and Maintenance Manual No. S-11-01 P2-12

Master Micon
ZTCD 82 Door Thermal is activated
tx94bt[1]

This is activated during door opening, door open command is given, and OLS is not activated after
180s.
This is activated during door closing, door close command is given, and CLS is not activated after
180s.
(1) Check the data in the circuit diagram shown below.

(2) Check the data shown below.

z101a
z102a
xcls
xols
These buffers must be turned on and off in accordance with the opening and closing movement of the
door.
(3) Check the connector of the door motor wiring.
Insert and disconnect the connectors to check for wire breakages or short-circuits.
Installation and Maintenance Manual No. S-11-01 P2-12A

Master Micon
ZTCD 83 FMLX ON failure detection
tfmlxnt[1]

This is activated during the elevator is travelling normally at non-door zone area, and the status of FMLX is ON
for 500ms.

(1) Check the data in the circuit diagram shown below.

(2) Check the wiring between mircolevelling detectors (FMLX), SCB PCB and CAIO for poor contact.
(3) Check whether microlevelling detectors (FMLX) are working properly.
Installation and Maintenance Manual No. S-11-01 P2-13

Master Micon
ZTCD 84 FMLY ON failure
tfmlynt

This is activated when elevator is out of door zone, and FMLY remains in the ON state for 500ms.

(1) Check the data in the circuit diagram shown below.

(2) Check the wiring between RS21, RS22 microlevelling detectors (FMLY), SCB PCB and CAIO for
poor contact.
(3) Check whether RS21, RS22 microlevelling detectors (FMLY) are working properly.

Cage I/O terminal transmission Master Micon

ZTCD 90
abnormality t97c

This is detected when the cage (SCLB3) transmission data (header) to the MPU is checked and found
that a value other than $8a is received for 160ms continuously (Activated when LCLANEC exceeds 3).
(1) Check the data in the circuit diagram shown below.

(2) Check that the wirings for communication lines between SCLB3 PCB and CAIO for loose or
broken wires.
(3) Measure the voltage between ¥XI-1 and ¥XI-3 (SCLB3 PCB). Make sure it is not less than DC
15.4V.
(4) Check SCL communication OK flag and error counter.
Refer to SCL communication checking table 3.1 for detailed checking.
(5) Check that CAIO dip switch SW1 is set to ON.
(6) Check that SCLB3 PCB dip switch S1-3 is set to ON.
Installation and Maintenance Manual No. S-11-01 P2-13A

#100RXA,#100RXB ON Main PC
ZTCD 85
trouble t100rxabnt[1]

This is activated during micro-levelling or running open operation, if SCB PCB #100RXA or #100RXB is ON.

(1) Check the data in the circuit diagram shown below.

(2) Check the data shown below.

z100r_c
x100rxab
(3) Check the relays conditions of #100RXA, #100RXB
If it does not work properly, or the contact is poor, replace SCB PCB.
Installation and Maintenance Manual No. S-11-01 P2-14

Multiple restart in Integrated Micon, Master Micon

ZTCD 92
causing nearest floor stop tmresete

This is detected when the breakdown of the Integrated Micon is detected at least 6 times.

Refer to Paragraph 3.4 “Restart integrated microcomputer” of this document.

Master Micon
ZTCD 93 Fin thermal sw activated
tx50fth

This is activated when the fin thermal input (x50fth) is activated.

(1) Check the fin thermal switch (x50fth) attached to the cool fin located inside the control panel.
(2) It is abnormal if this switch is activated due to elevated temperature. Check the main circuit cooling fan
to confirm whether it is functioning properly and check the fin to see if it is clean.
(3) Check the temperature in the machine room to confirm whether it is abnormally high.
Installation and Maintenance Manual No. S-11-01 P2-14A

Main PC
ZTCD 95 Multibeam ON/OFF failure
tphsberf

This is activated when the multibeam breakdown.

(1) Check the data in the circuit diagram shown below.

(2) Check ¥F14-1 for the power supply point.

(3) Check whether MB relay is working properly, if not, replace with the new one.
(4) Check whether ¥Y2/16 wire is broken.
(5) Check xshoel condition when multibeam is activated.
(6) If all the steps above are working properly and good in conditions, replace multibeam.
Installation and Maintenance Manual No. S-11-01 P2-15

Master Micon
ZTCD 96 ROM sum error 1
rsumfs[0]

Calculate the sum of each module by adding bytes and comparing them with the ROM data

(1) Check the following (rsumfs).

b31 b30 b29 b28 b27 b26 b25 b24 b23 b22 b21 b20 b19 b18 b17 b16 b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

Sum error "1" location where the sum error occurred = "1"

(2) Confirm that each and every Dip SW 1 on the MPU is turned OFF.
Installation and Maintenance Manual No. S-11-01 P2-16

Master Micon
ZTCD 97 ROM sum error
rsumf[0]

Calculate the sum of each module by adding bytes and comparing them with the ROM data

(1) Check the following (rsumf).

b31 b30 b29 b28 b27 b26 b25 b24 b23 b22 b21 b20 b19 b18 b17 b16 b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

Sum error "1" location where the sum error occurred = "1"

(2) Read the following data from ROM where the error occurred:
Bit where the sum Area classification Bit where the sum Area classification

error occurred error occurred

b0 OS initial boot loader b16 Spare

b1 Initial value variable, initial value b17 Spare

data

b2 Exception vector/device indirect b18 Spare

table

b3 Constant, all specifications b19 Spare

b4 OS system program b20 Spare

b5 Individual elevator unit program b21 Spare

b6 Control program b22 Spare

b7 Speed control program b23 Spare

b8 Map information (read the map b24 Spare

information from all devices)

b9 Fixed data (information on the b25 Spare

versions and allocated numbers)

b10 UCMP b26 Spare

b11 Spare b27 Spare

b12 Spare b28 Spare

b13 Spare b29 Spare

b14 Spare

b15 Spare

(3) Confirm that each and every Dip SW 1 on the MPU is turned OFF.
Installation and Maintenance Manual No. S-11-01 P2-16A

Master Micon
ZTCD 9C #5A ON failure
tx5acn

This is activated when the output buffer of #5A contactor does not turn ON, while the contact input of #5A
contactor is turned ON continuously for 500ms.

(1) Check the data in the circuit diagram shown below.

(2) Check the data shown below

z5wk, x5a
(3) Check whether #5A contactor is working properly, if not, replace #5A contactor.
Installation and Maintenance Manual No. S-11-01 P2-17

Master Micon
ZTCD A6 ALP operation error
talper

This abnormality is detected when ALP operation is not terminated after 8mins.

(1) Confirm the data of the trouble monitor, and if a problem other than ZTCD A6 is detected, implement
troubleshooting for that item.
(2) Check the battery voltage and specific gravity of the ALP board.
1 (3) Remove this trouble code with the maintenance console by Mode 1C set. Execute the ALP
operation by the test button, and check the ALP operation is normal. In addition, confirm that the
car can stop in the door opening zone.

Master Micon
ZTCD A7 #5R ON failure
tx5rnt[1]

This is activated when the output buffer of #5R contactor does not turn ON, while the contact input of
#5R contactor is turned ON continuously for 500ms.
(1) Check the data in the circuit diagram below.

(2) Check the buffers shown below.

z5r, x5r
(3) Check the #5R contactor for any fixation, adhesion, or abnormal contact.
Installation and Maintenance Manual No. S-11-01 P2-18

Master Micon
ZTCD A9 #40D contactor failure
tx40dge

This is activated when ON failure or OFF failure of #40D contactor is detected.

(1) Investigate the problem, referring to the check table shown in the Table below.
Table 1
No Door switch

x40d x40da Status Trouble history

1 ON ON When the door is closed, normal -

2 OFF OFF When the door is opened, normal

3 ON OFF #40DA ON failure If the tx40gat[1] was ON when the

problem occurred, investigate the failure
4 OFF ON #40DA OFF failure
as shown at left.

5 ON ON #40GA ON failure If the tx40dat[1] was ON when the

problem occurred, investigate the failure
6 OFF OFF #40GA OFF failure
as shown at left.

(2) Confirm whether the #40DA relay is functioning properly.

(3) Confirm whether the #40GA relay is functioning properly.

Open lock causing travel to other Master Micon

ZTCD AE
floor (1 time) t102ttk

In case the open lock or repetitive activation of the ORS is detected, the elevator moves to another
floor and then cease operation..
(1) Check the data shown below.
t102tc
Number of times that the open lock occurred.
t102lc
Number of times that an ORS occurred.
(2) Check the setting of the CLS, GS, and OLS.
(3) Check the door and its surroundings (sill groove, etc.)
Remove any dirt that has accumulated in the
sill groove.
(4) Check the continuity of the door machine power supply between the ¥Y3-16 and ¥Y3-17.
(5) (5) Check the tension of the door motor belt
Replace the door motor belt with a new one, if
necessary.
Installation and Maintenance Manual No. S-11-01 P2-18A

IP panel switch operation error

Master Micon
ZTCD AD (MACHINE ROOMLESS ONLY)
tipswabnrml

This is activated when lift is not under IP panel/car top inspection mode while IP panel LSB, SDB, SCS, GRS
switches are still ON continuously for 480ms.

(1) Check the data shown below.

(2) Check if lift is not under IP panel/car top inspection mode, and IP panel LSB, SDB, SCS, GRS switches
are ON.
(3) Check if IP panel LSB, SDB, SCS, GRS switches’ contacts are not damaged/short circuited.
(4) Check if RY1 relay is working properly.
(5) Check whether the connection of ¥YEN-A8/A9, ¥IQ2-A1/A2/A3, ¥KEN-B1/B3/B4 are broken.
Installation and Maintenance Manual No. S-11-01 P2-19

Master Micon
ZTCD B0 Inverter door machine trouble
tdrbt[1]

The door machine is faulty.

(1) Troubleshoot using GY0104-08 Debug Manual for SF2-DSC.

Master Micon
ZTCD B1 Inverter door machine Micon down
tdrdownt[1]

After the initial power ON of the door machine or when elevator arrives at the door zone, the Master
Micon will check xdwtq signal to determine if the door Micon is down.
(1) Check that the version of SF2-DSC PCB is 1.03 and above.
(2) Check that SF2-DSC PCB Dip SW S1-2 is OFF and ¥CN2-11 & ¥CN2-12 is shorted.
(3) Check the wirings at ¥JF-O2 and ¥JD-I5 (SF2-DSC PCB) and ¥P4-14 (SCLB3 PCB).
(4) Check the wiring at ¥FP-A1 (CAIO).
(5) Check the wiring at ¥Y2-17.
Installation and Maintenance Manual No. S-11-01 P2-19A

Master Micon
ZTCD B2 Inverter Rear door machine trouble
tdrtbrt[1]

The rear door machine is faulty.

(1) Troubleshoot using GY0104-08 Debug Manual for SF2-DSC.

Inverter Rear door machine Master Micon

ZTCD B3
Micon down tdrdownrt[1]

After the initial power ON of the rear door machine or when elevator arrives at the door zone, the Master Micon
will check xdwtqr signal to determine if the door Micon is down.

(1) Check that the version of SF2-DSC PCB is 1.03 and above.
(2) Check that SF2-DSC PCB Dip SW S1-2 is OFF and ¥CN2-11 & ¥CN2-12 is shorted.
(3) Check the wirings at ¥JF-O2 and ¥JD-I5 (SF2-DSC PCB) and ¥P4-14 (SCLB3 PCB).
(4) Check the wiring at ¥EQ-A10 (CAIO3).
(5) Check the wiring at ¥Y4-16 and ¥Y4-17.
Installation and Maintenance Manual No. S-11-01 P2-20

Communication among elevators in Master Micon

ZTCD C0
a group is abnormal t43pt[1]

For Duplex control, check for abnormal communication between elevator 1 & 2.
For FI-10, check for abnormal communication between the master elevator & slave elevators.
For FI-100, FI-600, check for abnormal communication between the group controller and controller for
all elevators in the group.
(1) Check the communication lines among elevator units in a group (group control) and the communication
lines with other elevator units (DSK).
(2) Check the power supply of the communication circuit to the group and elevator units (group control) and
check the power supply of the communication circuit with other elevator units (DSK).
(3) Check the data in the circuit diagram shown below.
Installation and Maintenance Manual No. S-11-01 P2-21

Standby group micro-controller Master Micon

ZTCD C2
abnormal tbmicn_z

This is activated if the LED of the WDT is turned OFF when the WDT signals sent from the
microprocessor of the standby system for the group control is checked.
(1) Check the lighting of the WDT LED of the MPU in the group control microcomputer rack (both the
operation system and the standby system).
(2) Check the power supply of the control panel.
(3) Check whether the printed board of the standby system is inserted (insert the board after turning off the
power supply).

Active group micro-controller Master Micon

ZTCD C3
abnormal tamicn_z

This is activated if the LED of the WDT is turned OFF when the WDT signals sent from the
microprocessor of the active system for the group control is checked.
(1) Check the lighting of the WDT LED of the MPU in the group control microcomputer rack (both the
operation system and the standby system).
(2) Check the power supply of the control panel.
(3) Check the lighting of each LED of the WDT, HALT, and UPG of the group control microcomputer.
WDT and UPG
LEDs are turned on if they are normal.
HALT
LED is turned off if it is normal.
Installation and Maintenance Manual No. S-11-01 P2-22

Master Micon
ZTCD C4 Common hall call circuit abnormal
tm97h

This is activated when a communication failure of I/O transmission line in the RS422 port (MPU) to
SST PCB or RS485 ports between the SST PCB and the hall indicators.
(1) Check the data in the circuit diagram shown below.

Master Micon
ZTCD C5 Group micro-controller down
tm97

Check for communication failure in the MPU.

(1) Check for communication failure in accordance with the procedure described in the ZTCD C0.
(Communication among elevator units in a group is abnormal).
Installation and Maintenance Manual No. S-11-01 P2-23

Master Micon
ZTCD C6 Simplex elevator hall call abnormal
tz97h

This is activated when the communication between all hall indicators and the MPU is disrupted.

(1) Check the data in the circuit diagram shown below.

Master Micon
ZTCD C9 FMLX OFF failure
tfmlxft[1]

This is activated during micro-levelling or running open operation, when FMLX remains in the OFF
state.
(1) Check the data in the circuit diagram shown below.

(2) Check the installation of the shelter plates and the FMLX posi-detector.
(3) Check the contact condition of FMLX posi-detector.
(4) Check the wiring at ¥Y2-5 as well as ¥FE-B7 (CAIO).
Installation and Maintenance Manual No. S-11-01 P2-24

Master Micon
ZTCD CA FMLY OFF failure
tfmlyft[1]

This is activated during micro-levelling or running open operation, when FMLY remains in the OFF
state.
(1) Check the data in the circuit diagram shown below.

(2) Check the installation of the shelter plates and the FMLY PosiTector.
(3) Check the contact condition of FMLY PosiTector.
(4) Check the wiring at ¥Y2-6 as well as ¥FE-A6 (CAIO).

Master Micon
ZTCD CB #100RXA, B OFF failure
t100rxabt[1]

This is activated during micro-levelling or running open operation, when SCB PCB #100RXA or
#100RXB relay remains in the OFF state.
(1) Check the data in the circuit diagram shown below.

(2) Check if ¥SCB connector is connected to SCB PCB.

(3) Check the wiring at ¥FE-B6 (CAIO).
(4) Change SCB PCB, if necessary.
Installation and Maintenance Manual No. S-11-01 P2-24A

SCLB3 Communiction abnormality

Master Micon
ZTCD CD between Main OPB, handicap OPB
tb3rs485err
and sub OPB.
This is activated when communication between SCLB3 PCBs in Main OPB, handicap OPB and sub
OPB is abnormal.

Check the following circuit diagram for the communication trouble of main SCLB3 PCB, handicap operation B3
PCB, and sub-operation B3 PCB.

Explanation of tb3rs485err trouble code variables for each BIT position：

BIT0 is “1”：RS485 communication wire broken between SLCB3 in main OPB & sub OPB.

BIT1 is “1”：RS485 communication wire broken between SLCB3 in main OPB & handicap OPB.

BIT30 is “1”：RS485 communication error between SCLB3 in main OPB & handicap OPB.

BIT31 is “1”：RS485 communication error between SCLB3 in main OPB & sub OPB.

(1) Check variable tb3rs485err，and check which type of communication trouble it is.
(2) Check if the connection of RS485 communication between SCLB3 board in Main OPB, handicap OPB
and sub OPB is correct and not broken.
(3) Check the terminating resistor DIP-SW setting if SCLB3 in Main OPB, handicap OPB and sub OPB is
correct.
(4) Check the power supply of SCLB3 PCB in Main OPB, handicap OPB and sub OPB.
Installation and Maintenance Manual No. S-11-01 P2-25

CLS, OLS simultaneously ON Master Micon

ZTCD D1
failure tdrlst[1]

This is activated when CLS and OLS have been turned ON simultaneously for more than 1min 300ms.

(1) Check the data shown below.

tdrlst
This is activated when xcls, and xols are turned on simultaneously (front-side).

This is also activated when xclsr and xolsr are turned on simultaneously (back-side).
(2) Check the operating states of CLS and OLS.
(3) Check the data in the circuit diagram shown below.

Door machine power supply OFF Master Micon

ZTCD D3
failure t97drft[1]

This is activated when the door motor power is turned OFF while the elevator is operating.

(1) Check the data in the circuit diagram shown below.

(2) Check whether DR.MC FFB in the control panel is switched ON.
(3) Check whether DMC.CUT knife switch in the apparatus box is switched ON.
Installation and Maintenance Manual No. S-11-01 P2-26

Occurrence of close lock or open Master Micon

ZTCD D7
lock t103

This is activated when the close lock or open lock is detected.

(1) Check the data shown below.

t101tc
Number of times that the close lock occurred
t102tc
Number of times that the open lock occurred
(2) Check the settings of CLS, GS, DS, and OLS.
(3) Check the door and its surroundings (sill groove, etc.)
Remove any dirt that has accumulated in the
sill groove.
(4) Check the continuity of the door machine power supply (AC 110V) wirings.
(5) Check for the proper installation of rotating systems, such as door motor, pulley, etc.
(6) Check the tension of the door motor belt
Replace the door motor belt with a new one, if
necessary.
(7) Check if the hall door has been opened without switching on the emergency stop or inspection
switch.
(8) Check if the hall door opening/closing at each floor is smooth.

Master Micon
Continuous ORS activation during
ZTCD D8 t101l t101lf
door closing

This is activated when ORS (overload reverse system) is activated 50 times consecutively when the
door is closing.
(1) Check for factors preventing the door from being closed (check for a deformed door, remove any dust
from the sill groove, and remove everything that prevents the door from being closed).
(2) Confirm the operation of the ORS (front: XORS, back: XORSR).
*
After removing factors preventing the door from being closed, keep pressing the door “Close”
button (the door is open when you stop pressing the door “Close” button) or turn on and off the
power supply until the door is closed.
Installation and Maintenance Manual No. S-11-01 P2-27

Master Micon
Continuous ORS activation during
ZTCD D9 t102l t102lf
door opening

This is activated when ORS (overload reverse system) is activated 16 times consecutively when the
door is opening.
(1) Check for factors preventing the door from being opened (check for a deformed door, remove any dust
from the sill groove, and remove everything that prevents the door from being opened).
(2) Confirm the operation of the ORS (front: XORS, back: XORSR).

Permission for floor height during Master Micon

ZTCD EF
installation work specification ON tiintfe

When the specification (bit 6 of iintf: ON) that allows the measurement of floor height during installation work
has been set, it is recorded in the trouble history. This is to prompt you to turn the specification to OFF before
delivering the equipment to the customer.
(1) Field adjustable specification (used temporarily in the field: must be set to 0x00000000). Please
note that bit 0 is a bit reserved for HBS.

bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
iintf

Set to “1” to turn on the indicator lamp for the reservation system.

Bit to allow UP operation at a special low speed

(it is prohibited to change this bit during maintenance w ork)

Set to “1” to allow the DOWN operation at a special low speed.

Set to “1” to allow the measurement of floor height for installation w ork.

Set to “1” to cut the backup operation.

(2) To clear this trouble message, set the 6bit of the iintf data to “0”.
Example: Change 0x00000060 to 0x00000040.
Change 0x00000040 to 0x00000000
Installation and Maintenance Manual No. S-11-01 P2-27A

Continuous ORS activation during Master Micon

ZTCD E3
rear door closing t101lr

This is activated when ORS (overload reverse system) is activated 50 times consecutively when the rear door is
closing.

(1) Check for factors preventing the rear door from being closed (check for a deformed door, remove any
dust from the sill groove, and remove everything that prevents the rear door from being closed).
(2) Confirm the operation of the ORS (front: XORS, back: XORSR).
*
After removing factors preventing the rear door from being closed, keep pressing the rear door
“Close” button (the rear door is open when you stop pressing the door “Close” button) or turn on
and off the power supply until the rear door is closed.

Continuous ORS activation during Master Micon

ZTCD EA
rear door opening t102lr

This is activated when ORS (overload reverse system) is activated 16 times consecutively when the rear door is
opening.

（1）Check for factors preventing the rear door from being opened (check for a deformed rear door, remove
any dust from the sill groove, and remove everything that prevents the rear door from being opened).
（2）Check the operation of the ORS (front: XORS, back: XORSR).
Installation and Maintenance Manual No. S-11-01 P2-28
2.2 Slave Micon

Slave Micon
VTCD 12 Slave Micon down
txsidnc

This is activated when a WDT signal from the CI-SH microcomputer is detected.

(1) Check the LED of the i-WDT in the CA9-MPU.

If the LED of the i-WDT is turned OFF: the microcomputer is abnormal.

Check whether a maintenance console can be used.
(2) Check the voltage between the P5 and GD of the CA9-MPU.
DC5V.
(Check the voltage between connectors ¥SD2-A1 (P5) and ¥SD2-B1 (GD) of the CA9-MPU.
(3) Check the status of the Dip SW 1 on the CA9-MPU.

Confirm that all switches are turned OFF.
(4) Conduct checking in accordance with the procedure shown in VTCD 13 (Integrated CI-SH
microcomputer communication is abnormal).
(5) Power OFF and ON to see if this trouble recurs.

Integrated and Slave Micon Slave Micon

VTCD 13
communication error tvicom

This abnormality is detected when an account value is transmitted and received alternately by the
integrated microcomputer (slave microcomputer) and the CI-SH microcomputer, and if the data does
not match.
(1) Check whether any INV microcomputer breakdown (VTCD D4) is recorded.
(2) Check the LED of the i-WDT in the CA9-MPU.
It must be turned off in the event of an INV
abnormality.
Check the data shown below.
vdpmchk: Always incremental
sdpmchk: Always decremental (NOT data of the vdpmchk)
(3) On the trouble monitor, check whether the VTCD 12 (CI-SH microcomputer has broken down) or VTCD
3A (CI-SH microcomputer sum error) is activated.
(4) Check for voltage of +5V to the CA9-MPU.
Check whether all the switches of the Dip SW1 on the HVF5-MPU are turned off.
(5) Power OFF and ON to see if this trouble recurs.
(6) If another printed board is connected to the “FVI” connector of the CA9-MPU, disconnect and check it.
(7) If any abnormality is detected, replace the CA9-MPU with a new one.
Installation and Maintenance Manual No. S-11-01 P2-29

Slave Micon
VTCD 14 Double input buffer circuit failure
txdinpt[1]

Compare the data of the important signals imported into both the integrated microcomputer and CI-SH
microcomputer to identify abnormal inputs (the above error message is displayed when an abnormal
input continues for one second after parallel communication has been established).
(1) Check the data shown below to confirm whether there is any data discrepancy.

Data imported into the integrated microcomputer Data imported into the CI-SH microcomputer
(device name) (device name)
rxcvch xcvchs
x50b x50bs
x40g x40gs
xdza xdzas
xdzb xdzbs
xv40d x40ds

(2) If an abnormality is found, confirm which data is abnormal, in accordance with the steps shown
below.
 rxcvch
If DC24V is not supplied to AVR: xcvchs = 0xFFFFFFFF (*)
 x50b, x40g, xdza, xdzb
Activate the equipment in question.

When the equipment is activated:
x50b(s) = 0xFFFFFFFF
x40g(s), x40d(s) = 0xFFFFFFFF
xdza(s), xdzb(s) = 0xFFFFFFFF
Installation and Maintenance Manual No. S-11-01 P2-30

INV – Suppression circuit OFF Slave Micon

VTCD 15
failure txipcht[1]

This is activated when a cancellation signal is not established on the hardware side after the
suppression of the main circuit’s IGBT gate signal on the slave microcomputer side and if such signal
continues for 300 (ms).
(1) Check the device (vxacr) when the elevator is started. → Abnormal if bit 5 = “0”
Check the data in the circuit diagram shown below.

(2) Check that the LED of the i-SUP (turned OFF when suppression is cancelled) on the CA9-MPU is
turned OFF, and that the LED of the i-WDT (turned ON when normal) is turned ON. If the LED is
defective, replace the CA9-MPU with a new one.
(3) Check for any contact failure of the ¥FAI connector of the CA9-MPU and the ¥FAI connector of the
GDCI. Disconnect and re-insert the connectors to check for wire breakages or short-circuits.

Replace the ¥FAI connector and/or their wiring, if necessary.

Slave Micon
VTCD 18 #50B ON failure
tvx50bnt[1]

This is activated when the output buffer of the #50B contactor is not turned on and when the contact
input of #50B is turned on and continuous for 500(ms).

(1) Check the data in the circuit diagram shown below.

(2) Check the status of #50B contactor.

If any fixation, adhesion, or short-circuited wiring is found
Replace the #50B contactor with a
new one.
Installation and Maintenance Manual No. S-11-01 P2-31

Slave Micon
VTCD 1A #15B ON failure
tx15bnt[1]

This is activated when the output buffer of the #15B contactor is not turned on and when the contact
input of #15B is turned on and continues for 500 (ms).

(1) Check the data in the circuit diagram shown below.

(2) Check the status of the #15B contactor.

If any fixation, adhesion, or short-circuited wiring is found
Replace the #15B contactor with a
new one.
Installation and Maintenance Manual No. S-11-01 P2-32

Slave Micon
VTCD 1B Abnormal specification setting
tvspc

This is activated when there is an abnormality in the elevator specification input into the integrated
microcomputer (main microcomputer).
(1) Compare the data shown below. If there is an abnormality, report it to Elevator QA.

Item Label names of the Label names of the

main microcomputer slave microcomputer
(FRAM) (RAM)
Speed code ivaspdcd vaspdcd

Motor code ivamtrcd vamtrcd

Abnormal if 0
Machine code ivatmccd vatmccd

Roping code ivaropecd varopecd

Encoder code ivarecd varecd Abnormal if 0

System code 0 i10sys[0] h10sys[0]

Abnormal if 0
System code 1 i10sys[1] h10sys[1]

System code 2 i10sys[2] h10sys[2]

Abnormal if 0
System code 3 i10sys[3] h10sys[3]

System code 4 i10sys[4] h10sys[4] Abnormal if 0

System code 5 i10sys[5] h10sys[5]

System code 6 i10sys[6] h10sys[6]

System code 7 i10sys[7] h10sys[7]

Speed control system code 0 ivsys[0] hvsys[0]

Speed control system code 1 ivsys[1] hvsys[1] Abnormal if 0

Speed control system code 2 ivsys[2] hvsys[2]

ivsys[3] hvsys[3] Abnormal if 0
Speed control system code 3
Speed control system code 4 ivsys[4] hvsys[4]

Speed type code ivasptncd vasptncd Abnormal if 0

ivaasrcd vaasrcd Abnormal if 0

ASR constant code
ivasdscd vasdscd Abnormal if 0
Slowdown code
ivabrtmcd vabrtmcd Abnormal if 0
Brake timer code
Drag detection gain code iva65gcd va65gcd

Brake code ivabrkcd vabrkcd

Carrying capacity code ivaload vaload Abnormal if 0

Power supply voltage code ivavltcd vavltcd

Abnormal if 0
Power supply frequency code ivafrqcd vafrqcd

Converter control code ivacnvcd vacnvcd

Preset Data Expanded Data

Installation and Maintenance Manual No. S-11-01 P2-33

INV – Suppression circuit ON Slave Micon

VTCD 1C
failure ti60supt[1]

This is activated when the suppression signal from the hardware is cancelled (time period: 200 ms),
although IGBT gate signal was suppressed at the speed controller.
(1) Check the data in the circuit diagram shown below while the elevator is at a stop.

(2) Check the LED of the i-SUP in the CA9-MPU (it is turned on during suppression).
Action to be taken:
Replace the CA9-MPU with a new one.

Repeated failure Slave Micon

VTCD 1F
(12 times / 10mins) t59ce

This is activated when serious failures (failures ranked as A1–C2) occurred more than 12 times in 10
minutes (more than 10 times in the door zone) or when operations to land the elevator at the nearest
floor occurred more than 12 times in 10 minutes.
(1) Check the data recorded on the trouble monitor to identify the failure and observe the procedure
described in the applicable TCD.
Installation and Maintenance Manual No. S-11-01 P2-34

Slave Micon
VTCD 28 Power supply phase failure
txvvcht[1]

This is activated when lift power supply phase failure occurs; xvch signal from AVR1 is LOW, continuously for
500ms.

Checks AVR1 phase loss detection signal xvch condition if signal is LOW;
(1) Check if elevator power supply phase loss had occurred;
(2) Check if AVR1’s CN4-A3 connection to CAIO’s FE-A1 is broken;
(3) Check if AVR1 is not damaged.

Slave Micon
VTCD 2A CNV – AC over voltage detection
txacov

This is activated when the AC voltage at the CNV exceeds the specified value.

(1) The main circuit may have been damaged. Check the main circuit using a meggar, if necessary.
Note: Before checking the main circuit, wait until the completion of the filter condenser discharge.
(2) Check the filter condenser for swelling.
(3) Measure the line voltage of the receiving power supply RST.
Installation and Maintenance Manual No. S-11-01 P 2-35

Slave Micon
VTCD 30 UCMP abnormal
tucmp

This is activated when the elevator is operating with the door open or when one of the UCMP
component parts is defective.
(1) Check the data recorded on the trouble monitor (mode 2) to identify the failure and conduct the check in
accordance with the applicable confirmation method (refer to Table 1).
(2) Switch the system to the maintenance operation mode to restore the system to the normal state.

Table 1: Failure history table

Mode 2 Failure Mode Bit Description of Failure Confirmation Method
Brake operation is abnormal (first
0
time, outside the door zone) Refer to VTCD 36
Brake operation is abnormal Refer to VTCD 6B
1
(other than above).
2 X15B ON failure Refer to VTCD 1A
3 V15B ON failure Refer to VTCD 44
Common Failure
Elevator is detected running with
4 (Note 1)
the door open.
INV suppression circuit ON
5 Refer to VTCD 1C
AB failure
(wrbh[7]) 6 DSB ON failure (Note 2)
7 #44F1 or #44F2 ON failure (Note 3)
8 40D ON failure
9 40DA ON failure
Refer to ZTCD A9
10 40G ON failure
Failure unique to 11 40GA ON failure
relay circuit system 12 #5R ON failure Refer to ZTCD A7
13 #5 ON failure Refer to ZTCD 12
14 Spare -
15 Spare -

Note 1: Elevator is detected running with the door open.

Check the following:
① Check the load and adjusted starting compensation value (confirm the amount of overrun and reverse
movement).
② Check the status of relay connectors between the motors of rotary encoders.
(Insert and disconnect the connectors to check for wire breakages or short-circuits.)
③ Check for breakage of the rotary encoder line (for short-circuits).
④ Check the rotary encoder for any looseness.
Installation and Maintenance Manual No. S-11-01 P2-36

⑤ Check for the displacement of magnetic poles.

Conduct the magnetic pole automatic tuning (refer to operation and maintenance material in ELK10-04).
⑥ Check the PosiTectors (FML, RS21, and RS22) to confirm that they are functioning properly.
⑦ Check the door switches at the elevator halls and those in the cage to confirm that they are functioning
properly.
⑧ Check the brake contraction and release operations.
Note 2: Door short (DSB) ON failure
Check the following:
① Check the status of the MSB connector (Insert and disconnect the connectors to check for wire
breakages or short-circuits).
② Check the status of the DSB switch.
Note 3: #44F1 or #44F2 ON failure
① Check the status of the #44F1 or #44F2 relay.
If any fixation, adhesion, or short-circuited wiring is found → Replace the #44F1 or #44F2 relay with a
new one.

Detection of over speed at low Slave Micon

VTCD 31
speed (motor) tgrslt[1]

This is activated when the speed of the maintenance or low-speed operation exceeds the specified
*
value when it continues for 160 (ms).
(1) Check the data in the circuit diagram shown below.

*
Specified value halpovsp = 0x14, hslovsp[0] = 0x1E, hslovsp[1]= 0x2D
(2) Operate the elevator at a low speed and check the elevator speed vxsped and compare it with the
speed recorded by the tachometer.
(3) Check the “FG1” connector of the CA9-MPU. Insert and disconnect the connectors to check for wire
breakages or short-circuits.
Replace the “FG1” connector and/or its wiring, if necessary.
(4) Check for abnormal vibration or overrun during the low-speed UP/DOWN and micro-running.
(5) Check the rotary encoder for any looseness.
Installation and Maintenance Manual No. S-11-01 P2-37

Rotary encoder failure (locked Slave Micon

VTCD 32
during travel) treer2t[1]

This is activated when the pulse number per unit output time of the rotary encoder (40 (ms)) is zero,
and when the speed command exceeds 15 (m/minute) and continues for 160 (ms).
(1) Check the data in the circuit diagram shown below.

(2) Check the wiring of the main circuit and the rotary encoder (refer to Testing and Adjustment of VFI-II
Elevator manual in S-10-04).
(3) Check the connection of the ¥FG1 connector of the CA9-MPU.
Insert and disconnect the connectors to check for wire breakages or short-circuits.
(4) Check for displacement of the magnetic poles. If the data described in the magnetic pole position data
adjustment (M68) is not appropriate, conduct magnetic pole automatic tuning (refer to Testing and
Adjustment of VFI-II Elevator manual in S-10-04).
(5) Check the brake operation (check for drag and confirm the brake circuit power supply).
Change BDC or motor if the brake code is correct.
(6) Check the rotary encoder for any looseness.

Fix and tighten the rotary encoder, if necessary.
(7) If it is found that the abovementioned components are functioning normally, replace the rotary encoder
with a new one.

Rotary encoder failure (locked Slave Micon

VTCD 33
during start) treer1t[1]

This is activated when the pulse number per unit output time of the rotary encoder (40ms) is zero, and
when the brake is opened and continues for 1500ms.
(1) Check the data in the circuit diagram shown below.

(2) Conduct the check in accordance with the procedure shown in VTCD 32.
(3) Check for displacement of the magnetic poles. If the data described in the magnetic pole position data
adjustment (M68) is not appropriate, conduct magnetic pole automatic tuning (refer to Testing and
Adjustment of VFI-II Elevator manual in S-10-04).
(4) Check the brake contraction and release operations.

If an abnormality is found in the brake, check also the brake-related TCD.
Installation and Maintenance Manual No. S-11-01 P2-38

Slave Micon
VTCD 35 Rotary encoder reverse wiring
vrunt[1]

This is activated when, with the brake being contracted:

(1) The elevator speed is eight meters/min. or below (or one meter/min. or below for ALP, or if measurement
of the floor height is incomplete (if VTCD 56 or 72 is detected), and if this continues for 15s.
(2) The actual speed is lower than half of the speed command, and when the torque command is more
than 95% of the limiter and continues for 4s.
(1) Check the data in the circuit diagram shown below.

(2) During the installation work phase, refer to Testing and Adjustment of VFI-II Elevator manual in S-10-04
to confirm the connection of the rotary encoder.
(3) Observe the waveforms of φA，φB, and φZ of the rotary encoder. There shall be no noise influence,
such as pulse splits.
(4) (4) Insert and disconnect the ¥FG1 connector of the CA9-MPU to check for wire breakages or short-
circuits.

Replace the ¥FG1 connector or its wiring, if necessary.
(5) Confirm the brake gap and check for drag. If there is any abnormality in the brake, check also the
brake-related TCD.
(6) Check the operation of the #5 contactor (for installation or other defects).

If there is any abnormality in the #5 contactor, replace it with a new one.
(7) If it is found that the abovementioned components are functioning normally, replace the rotary
encoder with a new one.
Installation and Maintenance Manual No. S-11-01 P2-39

Slave Micon
VTCD 36 Brake ON failure
txbcsnt[1]

This is activated when either the No. 1 or No. 2 brake is not released after the brake release (stop)
command was output and if this continues for 1000ms.
(1) Check the data in the circuit diagram shown below.

(2) As shown in the diagram above, from the data set to txbcsnt (0), identify any abnormal ENBCS and
check the status of the switch.
(3) Check for contact failure of the ¥FD connector of the CAIO and the ¥V1 connector in the control panel.
Insert and disconnect the connectors to check for wire breakages or short-circuits.

Replace the ¥FD and ¥V1 connectors or its wiring, if necessary.
(4) Check the brake spring set value.
(5) Check for a jammed brake.
(6) Check for contact failure, broken lines, improper installation of the ENBCS and confirm the set position.
(7) Check the operation of the #15B contactor.

Slave Micon
VTCD 37 Reverse motion detection (motor)
tv47t[1]
This is activated when the rotary encoder rotates in the direction opposite to the elevator travelling
direction command, and when the speed exceeds eight meters/minute and continues for 160 ms.
(1) Check the data in the circuit diagram shown below.

(2) Check the load and adjusted starting compensation value. Change the adjusted value.
(3) Check the phase sequences of the rotary encoder and motor (refer to Testing and Adjustment of VFI-II
Elevator manual in S-10-04 manual, VFI-II: S-10-04, UAG-2T: S-13-09).
(4) Check the adjustment of the load sensor (refer to Testing and Adjustment of VFI-II Elevator
manual in S-10-04 manual, VFI-II: S-10-04, UAG-2T: S-13-09).
(5) Check the rotary encoder for any looseness.
(6) Check if elevator suspension is installed correctly (refer to Testing and Adjustment manual, VFI-
II: S-10-04, UAG-2T: S-13-09).
(7) Check whether elevator nominal load data is normal.
Installation and Maintenance Manual No. S-11-01 P2-40

Automatic restoration lock during Slave Micon

VTCD 38
earthquake teqdect

This is activated when the difference in the torque commands is measured at regular time intervals
during the automatic restoration mode in the event of an earthquake (one second after it was activated
or when the speed increases) and when the difference exceeds the specified torque value equivalent
to 400 kg.
(1) Check for long objects (main rope, governor rope, compensating rope, or tail cord) that are caught by
equipment in the hoistway.
(2) Check whether the equipment in the elevator tower is not damaged by these long objects.
(3) When checks (1) and (2) above show that there is no damaged or caught equipment, send the
data of the device (teqdect) to Elevator QA.

Slave Micon
VTCD 39 INV Micon specification abnormal
tispc

This is activated when the sum values of the specifications of the integrated microcomputer (slave
microcomputer) and CI-SH microcomputer disagree with each other.
(1) Check the LED of the i-WDT in the CA9-MPU. → When the CI-SH microcomputer is abnormal, the LED
is turned off.
(2) Check the data shown below.
vvihsum
Tally with each other when they are normal
vihsum
(3) Check the trouble monitor to confirm whether the VTCD 12 or VTCD 3A is detected.
(4) Check Dip SW1 of the CA9-MPU to confirm whether all are turned off.
(5) After sending INV specification (M18) once again and then power OFF and ON the power supply, check
the above once more.
(6) VTCD 39 is detected once when MPU is replaced.
(7) This problem is detected when you changed the data to be sent to INV microcomputer or when
you set the magnetic pole offset data. It takes about 10 seconds maximum to detect this problem,
thus wait for approx. 10 seconds after you changed the data.

Trouble clear method: Press E.Stop → MPU DIP-SW1-1,4,5 ON → MODE 18 SET (use
maintenance console) → START (Press and hold till the trouble is cleared).
Installation and Maintenance Manual No. S-11-01 P2-41

Slave Micon
VTCD 3A INV Micon sum error
tisume

This is activated when the result of sum calculation for each byte of FROM built into the CI-SH
microcomputer is compared with the relevant value shown on the sum table, and when it is found that
they do not agree with each other.
(1) Check the LED of the i-WDT in the HVF5-MPU. → When the CI-SH microcomputer is abnormal, the
LED is turned off.
(2) Check the trouble monitor to confirm whether the VTCD 12 is detected.
(3) Check the data shown below.
(Connect the maintenance console to CA9-MPU to check the data of the CI-SH microcomputer.)
Label name (Address)
TISUME ($FFFFF718): $FFFFFF81
Sum error of the FROM1 built-in SH
$FFFFFF82
Sum error of the FROM2 built-in SH
$FFFFFF84
Vector address area sum error
SSUMA ($FFFFF71C)
Tally with each other when they are normal
A_SUMTBL ($0000FFF8)
SSUMB ($FFFFF710)
Tally with each other when they are normal
B_SUMTBL ($0003EFF8)
(4) Check Dip SW1 pins 1and 4 of the CA9-MPU to confirm whether all are turned OFF.

Failure of rotary encoder used in Slave Micon

VTCD 3B
detection of magnetic poles txrezeh

This is activated if the system fails to detect the magnetic pole position signal sent from the rotary
encoder when the power supply is turned off and on.
(1) Check the data of device txrezeh.
Bit 0 = 1: txreze1 is turned ON (magnetic pole detection process timeout error, broken S-phase signal
line, or circuit failure)
Bit 1 = 1: txreze2 is turned ON (magnetic pole detection U-, V-, or W- phase signal logic error, broken
U-, V-, or W- phase signal lines or circuit failure)
Note: U-, V-, and W- phases are shifted by 120 degrees compared to each other; abnormal if all phases
are high or low.
(2) Check for contact failure of the ¥FG1 connector of the CA9-MPU.
(3) Check the voltage of the rotary encoder.
Measure between pin 12 & 13 of the rotary encoder connector if there is DC 5V.
(4) Check for a broken encoder line.
(5) Check if the rotary encoder cable is shielded using flexible pipe and the flexible pipe is grounded.
(6) Check if the traction machine earth wiring is connected properly.
Installation and Maintenance Manual No. S-11-01 P2-42

Detection of zero offset for Slave Micon

VTCD 3C
magnetic poles treer0f

This is activated when 0x00000000 is input into the “Magnetic pole position data adjustment (M68)”.

(1) If the magnetic position data (Mode 68) was 0x00000000 when you conducted magnetic pole automatic
tuning in the field, conduct the magnetic pole automatic tuning once again (for details of magnetic pole
automatic tuning, refer to Testing and Adjustment of VFI-II Elevator manual in S-10-04 manual, VFI-II:
S-10-04, UAG-2T: S-13-09).

(2) When you conduct magnetic pole automatic tuning, VTCD = 3C will be reset automatically.
Installation and Maintenance Manual No. S-11-01 P2-43

Speed deviation is abnormal during

Slave Micon
VTCD 3E maintenance operation (lowest
tvspdfat
floor)
The difference between the elevator speed command (vspdrf) and the speed feedback (vspdfb) during
the maintenance operation is checked. This is activated when: the elevator cannot be re-started when
the difference between the absolute value of the actual speed and the absolute value of the speed
command exceeds 15m/min, if it is larger, or 30m/min, if it is smaller; and when this continues for
80ms.
(1) Check the data in the circuit diagram shown below.

(2) Check the data of the h15spcmd → 15m/min = 0x00000600.

(3) Check the speed during the maintenance operation using the elevator speed indicator (M27) and
tachometer.

15m/min ± 1m/min
(4) Set the speed limit at the maximum speed limit (M44) during the high-speed operation and check the
actual speed.
(5) Check for any brake drag.
(6) Check the waveform of the rotary encoder (¥FG1 connector of the CA9-MPU).
(7) Check the detected load value at the load indicator (M26).
(8) Check the rotary encoder for any looseness.
(9) Check the wiring, clamping of the rotary encoder, and the connection of connectors.
(10)Check the rotary encoder to confirm whether a cable is wired in parallel with the motor wiring or power
line.
Installation and Maintenance Manual No. S-11-01 P2-44

Starting lock during maintenance Slave Micon

VTCD 3F
operation (lowest floor) treerat

This is activated when the pulse per unit time (40 ms) of the rotary encoder during the maintenance
operation is zero, and when the brake is open and continues for 720 (ms). The elevator cannot be
started.

(1) Check the data in the circuit diagram shown below.

(2) Check the wiring of the main circuit and rotary encoder (refer to Testing and Adjustment of VFI-II
Elevator manual in S-10-04).
(3) Insert and disconnect the ¥FG1 connector of the CA9-MPU and the relay connector with the R.E. motor
to check for wire breakages or short-circuits.
→ Replace the ¥FG1 connector and/or its wiring, if necessary.
(4) Check for the displacement of the magnetic poles. If the data set at the magnetic pole position data
adjustment (Mode 68) is not appropriate, conduct magnetic pole automatic tuning (refer to Testing and
Adjustment of VFI-II Elevator manual in S-10-04).
(5) Check the brake contraction and release operations (for any drag, and check the brake circuit power
supply).
(6) Check whether the VTCD 3B (R.E. failure for magnetic pole detection) is detected by the trouble
monitor.
When this problem is detected, it is not possible to start the elevator. Before resetting this problem,
check the above and conduct the operation with thorough care.
Installation and Maintenance Manual No. S-11-01 P2-45

Slave Micon
VTCD 40 Detection of insufficient voltage
ttrsch

This is activated when the DC voltage of the main circuit drops below the specified value (480V) when
#5 and #5R are turned ON.
(1) Measure the voltage of the main circuit filter condenser.
(Voltage between the P and N is approximately DC 565V during motoring)
(2) Check for poor connection in the ¥FAI connectors of the CA9-MPU and the ¥FAI, ¥FJ1 and ¥J1
connectors of the GDCI.
(3) Check for broken lines in the RSH resistor.
(4) Confirm the main contacts of #5R contactor are working properly.
(5) Check for any damaged IGBT or smoothing condenser.
(6) Check the main circuit wiring.

Micro-running operation out of door Slave Micon

VTCD 41
zone tmcrovr

This is activated when a FML PosiTector signal is turned off and is detected for 40 ms consecutively
during the micro-running. When this problem occurs, the elevator cannot be started.
(1) Check the load and adjusted starting compensation value (confirm the amount of overrun and reverse
movement).
(2) Check the status of the ¥FG1 connector of the CA9-MPU. Disconnect and re-insert the connectors to
check for wire breakages or short-circuits.
Replace the ¥FG1 connector and/or its wiring, if
necessary.
(3) Check for breakage of the rotary encoder line (for short-circuits).

Replace the wiring of rotary encoder, if necessary.
(4) Check for the displacement of the magnetic poles. Take note of the data set to the magnetic pole
position data adjustment (Mode 68) and conduct magnetic pole automatic tuning (Mode A). The
magnetic pole adjustment may not be sufficient if the difference before and after the automatic tuning
exceeds $1555 (equivalent to 30 degrees).
(5) Check the rotary encoder for any looseness.
(6) Check whether the FML signal (xfml) is detected.
(7) In the case of the SAE-less system, check whether xrs21 or xrs22 is detected. Also check the position,
the installation of the shield plate, and the wiring.
(8) Check if FML shelter plate is installed properly. Check whether the depth of shelter plate is sufficient to
cut the posidetector sensor.
Installation and Maintenance Manual No. S-11-01 P2-46

Slave Micon
VTCD 42 #50B OFF failure
tx50bft[1]

This is activated when the output buffer of the #50B relay is turned on, but when the contact input of
#50B is turned off continuously for 500 (ms).
(1) Check the data in the circuit diagram shown below.

(2) Check the buffers shown below.

v50bk, zv50bk, st50vk, xv50b
(3) Check the ¥FD connectors of the CA9-MPU and CAIO.
Disconnect and re-insert the connectors to check for wire breakages or short-circuits.

Replace the ¥FD connector and/or their wiring, if necessary.
(4) Check the #50B relay for any improper installation.

Slave Micon
VTCD 43 SDS1 simultaneously ON failure
tsds1onh[1]

This is activated when it is detected that the SDS1U and SDS1D were turned on simultaneously when
the elevator was at a stop or when elevator startup was cancelled.
(1) Check the data in the circuit diagram shown below.

(2) Check the slowdown PosiTector and its wiring. Mechanically turn on and off the slowdown PosiTector
during the maintenance operation to confirm that the xsds1u and xsds1d are turned on and off. Check
for any improper installation while the slowdown PosiTector is turned on.
*
Please note that the xsds1u and xsds1d are turned on when no power is supplied to the
slowdown PosiTector and when the elevator is switched from AN to high-speed operation during
the startup period; or when the ¥XL1 or ¥XL2 connector is not connected to CAIO.
Installation and Maintenance Manual No. S-11-01 P2-47

Slave Micon
VTCD 44 #15B OFF failure
tx15bft[1]

This is activated when the output buffer of the #15B contactor is turned on, but when the contact input
of #15B is turned off and when this continues for 500 ms.
(1) Check the data in the circuit diagram shown below.

(2) Check the power supply to the #15B input circuit.
DC48V
(3) Check the #15B contactor.
Check for improper installation or contact failure of the auxiliary contact.
Replace the #15B contactor
with a new one, if necessary.
(4) Check for the contact failure of the ¥FD connector of the CA9-MPU and CAIO. Disconnect and re-
reinsert the connector to check for wire breakages or short-circuits.

Replace the ¥FD connector and/or their wiring, if necessary.
Installation and Maintenance Manual No. S-11-01 P2-48

Slave Micon
VTCD 45 Sheave slip detection
vtshvslp

This is activated when the elevator is operated exceeding the values of the limiters shown below.
Slip distance limiter 1 10,000mm
(a) When the digifloor data changes more than 20,000mm until the PosiTector is detected, during operations
other than ALP or maintenance operation
(b) When the digifloor data changes more than 1,000mm while the PosiTector has been detected, during
operations other than ALP or maintenance operation
Running time limiter: 1
(a) The running time between the shielding plates exceeds 120s during operations other than ALP or
maintenance operation
(b) The running time with the shielding plate being engaged exceeds 120s during operations other than
ALP or maintenance operation.
(a) Total stroke travelling time (X) ≤ 10 sec → Run Timer Limiter: 20 sec
(b) 10 sec ≤ Total stroke travelling time (X) ≤ 35 sec → Run Timer Limiter: (X)+10 sec 1
(c) Total stroke travelling time (X) > 35 sec → Run Timer Limiter: 45 sec

(1) Check the data in the circuit diagram shown below.

1 *Note: For HEA Application, h10sys(3)&Bit2 is always set to on.

(2) Check the sheave and rope to confirm that they do not slip.
(3) Check whether the PosiTector signal (xfml) is turned ON and OFF during the operation when passing
through the shielding plates. 1 8m
(4) Confirm that the maximum distance between the shielding plates is not more than 20m.
(5) Check for FML PosiTector open failure (VTCD A2) and FML PosiTector close failure (VTCD AA).
Installation and Maintenance Manual No. S-11-01 P2-49

Slave Micon
VTCD 47 #15BSW OFF failure
tx15bsft[1]

This is activated when the output buffer of the #15BSW contactor is turned on, but when the contact
input of #15BSW is turned off and when this continues for 500 ms.
(1) Check the data in the circuit diagram shown below.

(2) Check the power supply to the #15BSW input circuit.
DC48V (Please note that the power supply is
cut when the #5R contactor is turned off.)
(3) Check the #15BSW contactor.
Check for improper installation or contact failure of the auxiliary contact.
Replace the #15BSW
contactor with a new one, if necessary.
(4) Check for the contact failure of the ¥FD connectors of the CA9-MPU and CAIO. Disconnect and re-
insert the connector to check for wire breakages or short-circuits.

Replace wiring, if necessary.
(5) Check for the poor contact at ¥FO-A6 and ¥FK-B7 of the CAIO. Disconnect and re-insert the connector
to check for wire breakages or short-circuits.

Replace wiring, if necessary.
(6) If above are all ok, check whether there is any problem with VCB PCB.

Replace VCB PCB.
Installation and Maintenance Manual No. S-11-01 P2-50

Slave Micon
VTCD 48 Detection of insufficient current
tvccht[1]

This is detected when no current flows to the motor when the torque command is output.

(1) Check the data in the circuit diagram shown below.

(2) Check for the connection failure of the ¥FIH and ¥FAI of the CA9-MPU and the ¥FAI connector of
GDCI.

Replace ¥FIH and/or ¥FAI connectors, if necessary.
(3) Check for the connection failure of the ¥FIU, ¥FIV, and ¥FIW connectors of the hall CT.
(4) Check for broken lines in the wiring between the inverter and motor. (Measure the resistance of each
phase.)
(If an abnormal vibration in the elevator is detected, the main circuit may be damaged [open failure]).
(5) Report the motor code (vamtrcd) to Elevator QA.

Slave Micon
VTCD 49 INV – IPM error detected 3 times
txiigbte[1]

This is activated when the short-circuiting of INV-IGBT is detected three times consecutively.

(1) Conduct checking in accordance with the procedure shown in VTCD 50.
Installation and Maintenance Manual No. S-11-01 P2-51

INV – HCT neutral phase current is Slave Micon

VTCD 4A
abnormal tihct0e

This is detected when the zero-phase current at the INV side exceeds the specified value.

(1) Check the main circuit using a meggar because the main circuit at the INV side may be damaged.
Note: Before checking the main circuit, wait until the completion of the filter condenser discharge.
(2) Check for the contact failure of the ¥FAI connector of CA9-MPU and the ¥FAI, ¥FJ1 connectors of the
GDCI.
(3) Check the filter condenser for swelling.
(4) Check the hall CT wiring ¥FIU, ¥FIV, and ¥FIW connectors and the “FIH” connector of CA9-MPU.

CNV – HCT neutral phase current Slave Micon

VTCD 4B
is abnormal tchct0e

This is detected when the zero-phase current at the CNV side exceeds the specified value.

(1) Check the main circuit using a meggar because the main circuit at the CNV side may be damaged.
Note: Before checking the main circuit, wait until the completion of the filter condenser discharge.
(2) Check for the contact failure of the ¥FAC connector of CA9-MPU and the ¥FAC, ¥FJ1 connectors of the
GDCC.
(3) Check the filter condenser for swelling.
(4) Check the hall CT wiring ¥FIR, ¥FIS, and ¥FIT connectors and the ¥FCH and ¥FCH2 connectors
of CA9-MPU.
Installation and Maintenance Manual No. S-11-01 P2-52

CNV – Suppression circuit OFF Slave Micon

VTCD 4C
failure txcpcht[1]

This is activated when the suppression of the main circuit’s IGBT gate signal is cancelled on the slave
microcomputer side, but when the cancellation signal is not established on the hardware side and
when this continues for 300 (ms).
(1) Check the device (vxacrc) when the elevator is started.
Abnormal if bit 3 = “0”
Check the data in the circuit diagram shown below.

(2) Check that the LED of the c-SUP (turned off when suppression is cancelled) in CA9-MPU is turned off
and that the LED of the i-WDT (turned on when normal) is turned on.
If there is an abnormality in the
LED, replace CA9-MPU with a new one.
(3) Check for any contact failure of the ¥FAC connector of CA9-MPU and GDCC. Insert and disconnect the
connectors to check for wire breakages or short-circuits.

Replace the ¥FAC connector and/or their wiring, if necessary.

CNV – Suppression circuit ON Slave Micon

VTCD 4D
failure tc60supt[1]

This is activated when the main circuit’s IGBT gate signal is suppressed at the slave microcomputer
side, but when the suppression signal from the hardware is cancelled (time period: 300 ms).
(1) Check the data in the circuit diagram shown below while the elevator is at a stop.

(2) Check the LED of the c-SUP in CA9-MPU (it is turned on during suppression).
Action to be taken:
Replace CA9-MPU with a new one.
Installation and Maintenance Manual No. S-11-01 P2-53

Power failure detection signal is Slave Micon

VTCD 4F
abnormal tv97pert[1]

This is activated when, even though the power signals are sent (v97t[1] and v97at[1] are turned ON),
the control power lost signal rx97p is turned on and continues for 10s.
(1) Check for contact failure of the ¥FK connector of CAIO. Disconnect and re-insert the connector to check
for wire breakage.
(2) Check the DC 48V supply of AVR1 (Minimum > 37V).

Replace AVR1 with a new one, if necessary.

Slave Micon
VTCD 50 INV – IPM error detected
txiigbt

This is activated when the INV-IGBT abnormality detection signal is output (overcurrent or short-circuit
current).
(1) Check the main circuit using a meggar.
Note: Before checking the main circuit, wait until the completion of the filter condenser discharge.
(2) Measure the grounding resistance of the motor. (2MΩ or over)
Rotate the motor and check the
ground resistance for one turn.
(A partial ground fault may occur.)
(3) Check the IGBT for damage (cracking or swelling of the case).

Replace the IGBT, if necessary.
(4) Check the resistance value of the IGBT.
(5) Check for the contact failure of the ¥FAI, ¥FIH and ¥FG1 connectors of CA9-MPU.
Check +5V and ±15V supply.
(6) Check for the contact failure of the ¥FAI and ¥FJ1 of GDCI.
(7) Check the operation of the main circuit cooling fan.

Replace the fan, if necessary.
(8) Measure the line resistance of the motor.
(The fluctuation of each phase must be within 3%.) Use a tester with a 1mΩ range.
(9) Check for connection failure of the hall CT connector (check whether VTCD 99 or DA is detected).
(10) Check the wiring and waveform of the rotary encoder. Refer to Testing and Adjustment of VFI-II
Elevator manual in S-10-04 manual, VFI-II: S-10-04, UAG-2T: S-13-09).
(11) Check cooling fan, cooling fan suction, if there is dust clogging, clean it.
(12) Check the condition of 10TA contactor, if abnormal, replace 10TA.
Installation and Maintenance Manual No. S-11-01 P2-54

Slave Micon
VTCD 51 INV – Detection of over voltage
txiov

This is activated when the DC voltage at the main circuit exceeds the specified value (detected by the
hardware circuit).
(1) Check the main circuit using a meggar.
Note: Before checking the main circuit, wait until the completion of the filter condenser discharge.
(2) Check for the contact failure of the ¥FAI connector of CA9-MPU and the ¥FAI and ¥J1 connectors of
GDCI.
(3) Check the filter condenser for any damage, such as swelling.
(4) Check for wire breakages in the regenerative resistors circuit. Measure between P-N using a multimeter
to confirm.
(5) Check for the contact failure of the ¥FIH connector of the CA9-MPU.
*
This trouble may be detected during the emergency stop.

Slave Micon
VTCD 52 CNV trigger failure
txcnvft[1]

This is activated when the CNV start command is sent, but when CNV fails to start and continues for
one second.
(1) Check the data in the circuit diagram shown below.

(2) Check for the contact failure of the ¥FAC of CA9-MPU and the ¥FAC, ¥FCH and ¥J1 of GDCC.
(3) Check the voltage of P-N whether normal.
(4) The value (voltage) indicated when by performing Mode 25 should be almost equal (±10V) to the
actual voltage measured between P and N, using a multimeter. Thorough care must be exercised
because high voltage is being applied.
Installation and Maintenance Manual No. S-11-01 P2-55

Magnetic rotation direction flag not Slave Micon

VTCD 53
set trezrset

This is detected when the magnetic offset data is zero for a machine adopting the PM motor (system
code: h10sys (4) Bit 0 turned OFF) control system. Or, it is detected when the direction judgment flag
is other than “0xA5A5” or “0x5A5A”.
(1) Check the magnetic pole offset data that is indicated at “MODE 68”. If the data is zero, the magnetic
pole offset has not been adjusted. (Refer to Testing and Adjustment of VFI-II Elevator manual in S-10-
04 manual, VFI-II: S-10-04, UAG-2T: S-13-09).
(2) Check the data of the device “irerotf: Address (0xc3001d48).
If the data is other than “0xA5A5A5A5” or “0x5A5A5A5A”, report it to Elevator QA (the Mito Urban
Planning and Development Systems Division).

For a machine adopting the IM motor control system:

(1) Check Bit 0 of h10sys (4). If it is turned OFF, report it to Elevator QA and check all the motor codes
(specifications).

Slave Micon
VTCD 54 Apply brake travel detected
tdskbrk

This is activated when brake drag is detected (VTCD 95) for more than 20s for high-speed operation or
for more than one minute for low-speed operation.
(1) Check the data of the device tdskbrk to confirm whether the problem occurred at the high-speed or low-
speed side.

Data;
*********1
High-speed side
*********2
Low-speed side
(2) For specific check items, refer to VTCD 95.
Installation and Maintenance Manual No. S-11-01 P2-56

DC voltage confirmation signal Slave Micon

VTCD 55
abnormal tphcer

This abnormality is detected when #5r and #5 are turned off after a no-call check for 3mins and when
the photo coupler signal does not turn off 3mins later.
(1) It is judged as abnormal if the photo coupler signal (“DC voltage established” signal: vxacr = bit13) is
still sent when two minutes have passed after a no-call check for three minutes.
(2) Check whether the DC voltage drops (approx. 100 V). Check for any DC voltage drop by performing
Mode 25.
(3) Confirm that #5 is turned OFF.
(4) Check for the contact failure of the ¥FAC and ¥FAI connectors of CA9-MPU and the ¥FAC connector of
GDCC” and ¥FAI connector of GDCI.

Temporary stop at terminal floor Slave Micon

VTCD 56
due to floor height table sum error tp900re

The floor sum error is detected when the sum value of the floor height table (FeRAM) is compared with
the sum value (RAM) during the floor height measurement operation and when it is found that they do
not agree with each other. When the limit switch on the terminating floor is turned off in this condition, a
trouble code for indicating the state for stopping the elevator is issued.
(1) Be careful: VTCD 56 or 72 may be detected when the floor height measurement operation is
conducted.
(2) Check Dip-SW1 of CA9-MPU.
Normally, all are “OFF”.
(3) Check the data of the ipm300sm.
Error if it is “0”.
(4) Check the data of the ipm300pt.
Record the data for (number of floors + 2).
(5) Conduct the floor height measurement operation once again and check the data with those recorded
above (each error must be approx. 5mm).
(6) Check the content of tp900r.
Bit 1
Unit’s floor height table sum error
Installation and Maintenance Manual No. S-11-01 P2-57

Slave Micon
VTCD 57 CNV abnormal trigger
txcnvnt[1]

This is activated when the CNV start command is turned OFF, but when the CNV start is completed.

(1) Check the data in the circuit diagram shown below.

(2) Check VTCD=12 and VTCD=13.

Detection of phase reversal in Slave Micon

VTCD 58
power supply txrvt[1]

This is activated when a reversed phase of the power supply has been detected for 160ms.

(1) Check the data in the circuit diagram shown below.

(2) Change the phase sequence of the RST and check for a reversed phase.
(3) Confirm the power frequency code (ivafrqcd: $01 (50Hz), $02 (60Hz))
(4) Confirm that the power phase settings of CAIO are proper.
Installation and Maintenance Manual No. S-11-01 P2-58

Slave Micon
VTCD 59 CNV – IPM error detected 3 times
txcigbte[1]

This is activated when the short-circuiting of the CNV-IGBT is detected three times consecutively.

(1) Conduct checking in accordance with the procedure shown in VTCD = 5C.

Slave Micon
VTCD 5A INV – HCT over current detection
txioc

This is detected that the voltage at the INV side exceeds the specified value.

(1) Check the main circuit using a meggar because the main circuit at the INV side may be damaged.
Note: Before checking the main circuit, wait until the completion of the filter condenser discharge.
(2) Check ¥FAI connector of CA9-MPU and the ¥FAI and ¥FJ1 connectors of GDCI for poor contact.
(3) Check the filter condenser for swelling.
(4) Check the wiring of the ¥FIH connector of CA9-MPU and the ¥FIU, ¥FIV, and ¥FIW connectors of
the hall CT.
(5) Check if the elevator suspension is installed correctly.
(6) Check if the number of sub-weight (counterweight) is correct and balancing point meets the
requirement.
Installation and Maintenance Manual No. S-11-01 P2-59

INV – Insufficient base voltage Slave Micon

VTCD 5B
detection txigdve

This is activated when the gate voltage at the INV side drops below the specified value.

(1) Check ¥J1 terminal of GDCI for poor contact.

(2) Check ¥FAI connector of CA9-MPU and ¥FAI and ¥FJ1 connectors and ¥J2 terminal of GDCI for poor
contact.

Slave Micon
VTCD 5C CNV – IPM error detected
txcigbt

This is activated when the IGBT abnormality detection signal is output (overcurrent or short-circuit
current).
(1) The main circuit may be damaged. Check the main circuit using a meggar.
Note: Before checking the main circuit, wait until the completion of the filter condenser discharge.
(2) Check the IGBT for damage (cracking or swelling of the case).

Replace the IGBT, if necessary.
(3) Check the resistance value of the IGBT.
(4) Check ¥FAC, ¥FCH and ¥FG1 connectors of CA9-MPU for poor contact.

Check +5V and ±15V supply.
(5) Check ¥FAC and ¥FJ1 of GDCC for poor contact.
(6) Check the operation of the main circuit cooling fan.

Replace the fan, if necessary.
(7) Check for the contact failure of the ¥FCH of CA9-MPU and the ¥FIR and ¥FIS connectors of the
hall CT (VTCD = 9D, EA).
(8) Check cooling fan and air intake portion: clean if dust accumulates.
(9) For VFI-II 200A control panel, check if GRB wiring is connected properly (check GRB PCB’s
R,S,T phase connection).
Installation and Maintenance Manual No. S-11-01 P2-60

Slave Micon
VTCD 5D CNV – Detection of over voltage
txcov

This is activated when the DC voltage at the main circuit exceeds the specified value (detected by
software).
(1) The main circuit may be damaged. Check the main circuit using a meggar.
Note: Before checking the main circuit, wait until the completion of the filter condenser discharge.
(2) Check ¥FAC connector of CA9-MPU and ¥FAC and ¥FJ1 connectors, and ¥J1 terminals of GDCC for
poor contact.
(3) Check the filter condenser for any damage, such as swelling.
(4) Check for wire breakages in the regenerative resistors circuit. Measure between P-N using a multimeter
to confirm.
(5) This secondary problem may occur in the event of the emergency stop of an elevator. Check for
any other troubles that might have occurred before this trouble was detected.

Slave Micon
VTCD 5E CNV – HCT over current detection
txcoc

This is detected when the current at the CNV side exceeds the specified value.

(1) Check the main circuit using a meggar because the main circuit at the CNV side may be damaged.
Note: Before checking the main circuit, wait until the completion of the filter condenser discharge.
(2) Check ¥FAC connector of CA9-MPU and the ¥FAC and ¥FJ1 connectors of GDCC for poor contact.
(3) Check the filter condenser for swelling.
(4) Check the wiring of the ¥FCH connector of CA9-MPU and ¥FIR and ¥FIS connectors of the hall
CT.
Installation and Maintenance Manual No. S-11-01 P2-61

CNV – Insufficient base voltage Slave Micon

VTCD 5F
detection txcgdve

This is activated when the gate voltage at the CNV side drops below the specified value.

(1) Check ¥J1 terminal of GDCC for poor contact.

(2) Check ¥FAC connector of CA9-MPU and ¥FAC and ¥FJ1 connectors and ¥J2 terminal of GDCC for
poor contact.

Slave Micon
VTCD 61 Floor height measurement error
pmstat

This is activated when it was found during the check that some conditions during the floor height
measurement were abnormal (the number of floors were excessive or the floor pitch was insufficient).
(1) In accordance with Testing and Adjustment Manual in ELK10-04, investigate the possible causes of the
floor height measurement error.
(2) Check the trouble monitor No. 62 (the number of times that insufficient floor pitch was detected).
① Check for the chattering of xfml.
Check for floors where wpbh [3] (the number of times that insufficient floor pitch was detected) is high.
② This error may occur when the overlap width of the shielding plate is narrower than the specified
value.
Check xfml to confirm that it turns OFF and ON properly during floor height measurement.
③ Check the floor pitches to confirm that they are more than 1000 (mm). (Check the shielding plates to
confirm whether there are such cases where they are installed at intervals smaller than 1000 (mm).).
(3) Check the trouble monitor No. 65 (Floor height-measured floors don’t match).
① Check the number of shielding plates and the number of floors.
② Check whether the data of pm300 coincides with the number of the service floors of the elevator.
(4) Check the trouble monitor No. 66 (number of times that floor height measurement failure was detected).
① Number of times that floor height measurement failure was detected due to the problems mentioned
above
② The floor height measurement was suspended for some reason.
(5) xsds1u: Check the operation of the SDS for 60 (m/min) at the top floor.
Installation and Maintenance Manual No. S-11-01 P2-62

Slave Micon
VTCD 62 Abnormal speed deviation of motor
tvspdft[1]

The difference between the elevator speed command (vspdrf) and the speed feedback (vspdfb) is
checked. This is activated when the difference between the absolute value of the actual speed and the
absolute value of the speed command exceeds 15m/min, if it is larger, or 30m/min, if it is smaller. Or,
this is activated when: the difference between the speed command and the speed detected by the
slave microcomputer during the maintenance operation, other than Helios low-speed operation, is
more than 5m/min; when the difference between the speed detected by the INV microcomputer and
the speed detected by the slave computer is more than 10m/min; and when the speed detected by the
INV microcomputer is not updated, and when this continues for 160ms.
(1) Check the data in the circuit diagram shown below.

(2) h15spcmd → 15(m/min) = 0x00000600､

Check the data of hspgain.
(3) Check the speed during the maintenance operation using the elevator speed indicator (M27) and a
tachometer.

15 (m/min) ± 1 (m/min)
(4) Set the speed limit (M44) during high-speed operation, and check the actual speed.
(5) Check for any brake drag. Check for brake-related TCD.
(6) Check the waveform of the rotary encoder (¥FG1 connector of CA9-MPU).
(7) Check the detected load value at the load indicator (M26).
(8) Check the rotary encoder for any looseness.
(9) Check the wiring, clamping of the rotary encoder, and the connection of connectors.
(10)Check the rotary encoder to confirm if the cable is wired in parallel with the motor wiring or power line.

Replace the connectors and wiring of the rotary encoder and/or encoder, if necessary.
(11)Check for a missing ¥FB or ¥FD connector between CA9-MPU and CAIO.
Disconnect and re-insert the connectors to check for wire breakages or short-circuits.
Installation and Maintenance Manual No. S-11-01 P2-63

Detection of over speed at high Slave Micon

VTCD 64
speed (motor) tgrsht[1]

This is activated when the speed of the elevator (detected by the pulses of the rotary encoder) exceeds
the permissible speed and when this continues for 160ms. Or, when it is activated when the speed
code (ivaspdcd) is “0”.
(1) Check the data in the circuit diagram shown below.

(2) Set the speed limit at the maximum speed limit (Mode 44) and check the vxsped.

Unit: (m/min). Compare the value with that displayed on the tachometer.
(3) Check whether the speed code (ivaspdcd) is 0x00000000.
(4) Check VTCD 62 procedure steps (8) ~ (10).

Speed deviation abnormality on

Slave Micon
VTCD 66 maintenance operation (mid floor,
tvspdfbt
highest floor)
Same as VTCD 3E
This is activated when a speed deviation abnormality occurs at an intermediate or top floor during the
maintenance operation. When this problem is detected, it is not possible to re-start the elevator.
(1) Refer to VTCD 3E.
* When this problem is detected, it is not possible to re-start the elevator. Before fixing this problem and
restarting the elevator, check the above and conduct the work with thorough care.
Installation and Maintenance Manual No. S-11-01 P2-64

Starting lock on maintenance Slave Micon

VTCD 67
operation (mid floor, highest floor) treerbt

Same as VTCD 3F. This is activated when a startup is locked at an intermediate or top floor during the
maintenance operation. When this problem is detected, it is not possible to re-start the elevator.
(1) Refer to VTCD 3F.
* When this problem is detected, it is not possible to re-start the elevator. Before fixing this
problem and restarting the elevator, check the above and conduct the work with thorough care.

Slave Micon
VTCD 6B Brake OFF failure
txbcsft[1]

This is activated when either the No. 1 or No. 2 brake is not activated after the brake activation (run)
command was output and when this continues for 1500ms.
(1) Check the data in the circuit diagram shown below.

(2) As shown in the diagram above, from the data set to txbcsnt (0), identify any abnormal ENBCS and
check the status of the switch.

Replace the abnormal BCS with a new one.
(3) Disconnect and re-insert ¥FD connector of CA9-MPU and CAIO and ¥V1 connector in the control panel,
in order to check for wire breakages or short-circuits.

Replace ¥FD and/or ¥V1 connectors or their wiring, if necessary.
(4) Check the brake spring set value.
(5) Check for a jammed brake.
(6) Check for contact, broken lines, and improper installation of the ENBCS, and confirm the set position.
(7) Check the operation of the #15B contactor.
Installation and Maintenance Manual No. S-11-01 P2-65

Slave Micon
VTCD 70 Synchronized position error
tp900ps

This is activated when the signals obtained from the door zone PosiTector signal, SDS, and
synchronization position are compared and when it is found that they are abnormal.
(1) Check the following from the data of the trouble monitor No. 99.
It is checked only when “vxdz = ON and vxsped = 0”.
Bit 0 = 1
p102f = OFF
Bit 3 = 1
(x40g = ON) & (p900 ≠ ipm300) & (xsds1u = ON)
Bit 4 = 1
(x40g = ON) & (p900 ≠ 1) & (xsds1d = ON)
Bit 5 = 1
zx900 ≠ p900
(2) Check the number of shielding plates and their installed positions.
(3) Check the ON and OFF operations of the FML PosiTector signal. → If the operations are abnormal,
replace the FML with a new one.
(4) Check the waveform of the rotary encoder (for looseness). → Check the TCD for an abnormal R.E. and
replace it with a new one, if necessary.
(5) Stop the elevator at a terminating floor and check the operation of the SDS.
*
The SDS must be turned on when the elevator stops at a terminating floor (contact is opened).
*
The SDS must be turned off when the elevator stops at an intermediate floor (contact is closed). → If
the SDS is acting abnormal, replace it with a new one.
Installation and Maintenance Manual No. S-11-01 P2-66

Abnormal SDS speed 2 Slave Micon

VTCD 71
(emergency stop) tsdsver2

This is activated when the speed calculated by adding a specified value to the check pattern of SDS
speed abnormal 1 is compared with the actual speed, and when the actual speed exceeds the check
speed.
(1) Check the direction of the elevator operation, load in the cage, speed of the elevator and the switch
operation, by checking the data of the trouble monitor (Mode 2).
(2) Check the setting of the SDS, operating margin, speed command value and remaining distance, under
the abovementioned conditions.

Points to check concerning SDS operation

Sw No.
SDS1U, 1D SDS2U, 2D SDS3U, 3D SDS4U, 4D SDS5U, 5D
Item
wsdvd [0] wsdvd [4] wsdvd [8] wsdvd [12] wsdvd [16]
Operating Margin wsdvb [0] wsdvb [4] wsdvb [8] wsdvb [12] wsdvb [16]
wsdvd [1] wsdvd [5] wsdvd [9] wsdvd [13] wsdvd [17]
Speed Command Value wsdvb [1] wsdvb [5] wsdvb [9] wsdvb [13] wsdvb [17]
wsdvd [2] wsdvd [6] wsdvd [10] wsdvd [14] wsdvd [18]
Remaining Distance wsdvb [2] wsdvb [6] wsdvb [10] wsdvb [14] wsdvb [18]
wsdvd [3] wsdvd [7] wsdvd [11] wsdvd [15] wsdvd [19]
Operating Point wsdvb [3] wsdvb [7] wsdvb [11] wsdvb [15] wsdvb [19]

Refer to Installation Manual [S-10-003] [VFI-II: S-10-03, UAG-2T: S-14-01] for SDS settings.
Judgement criteria for the operating margin: SDS1U, 1D: 5m/min, SDS2~5U, 2~5D: 7m/min,

(3) If there is an error in the SDS setting, make the necessary adjustment and operate the elevator in
the UP and DN directions to confirm (2) above.
(4) Check for contact failure of the SDS and check ¥XL1 and ¥XL2 connectors and their wirings.

Replace ¥XL1 and ¥XL2 connectors if necessary.

Slave Micon
VTCD 72 Sum error for floor height table
tp900r
This is detected when the sum value (FeRAM) of the floor height table is different from the sum value
(RAM) during floor height measurement.

(1) Conduct checking in accordance with the procedure shown in VTCD 56 (Elevator stops at a
terminating floor in the event of a floor height table sum error).
(2) BIT 1 ON, it means trouble is related to SAE.
(3) BIT 2 ON, it means floor height table sum error, or floor height measurement has not been made.
Installation and Maintenance Manual No. S-11-01 P2-67

Slave Micon
VTCD 90 Load detection circuit abnormal
tv65rg

The voltage of the load sensor mounted below the cage is detected (x65wg1–x65wg4) at the A/D
converter built into the door microcomputer installed in SCLB3, located in the OPB and, based on this,
the appropriateness of the detected load values is checked.
(1) Check the data of the tv65rg.
(A) “Load detection circuit is abnormal” indicates the eight types of abnormalities shown below.
Therefore, when an abnormality occurs, check the data of the trouble monitor (no. 88) to identify the
problem.
(B) The multiple abnormalities shown below may occur at any time. For example, if the data of
the trouble monitor shows 0x0021, check the columns of 0x0020 and 0x0001.
Details
Data of no. Condition that an
Confirmation method Others
88 abnormality occurred

0x000l One of the outputs of load When such a condition that some of the Load sensor output value

sensors 1–4 is more than x65str 1–4 data is more than 0x3FF saturation check

0x3FF. continues for the specified time duration

0x0002 The output value of the load When the data of x65wg1 is 0x64 or Load sensor output value zero

sensor 1 is 0x64 or below. below check.

0x0004 The output value of the load When the data of x65wg2 is 0x39B or

sensor 2 is 0x39B or over. over

0x0008 The output value of the load When the data of x65wg3 is 0x64 or

sensor 3 is 0x64 or below. below

0x0010 The output value of the load When the data of x65wg4 is 0x39B or

sensor 4 is 0x39B or over. over:

0x0020 The variation of one of the When the load value prepared by the Load sensor output value deviation

load sensors 1–4 is small. load sensors 3 and 4 detects 2 (%) or check

below while the load value prepared by

the load sensors 1 and 2 detects 160

(%) or over, or vice versa

0x0040 The load value prepared by Check whether the data of v65rg1 is Load detection value negative

the load sensors 1 and 2 is - negative. -30% is indicated as check

30% or below. 0xFFFFFFE2. For example, care is

needed if the data of N.L. is between

0x0–0xFFFFFE2.
Installation and Maintenance Manual No. S-11-01 P2-68

Data of no. Condition that an

Confirmation method Others
88 abnormality occurred

0x0080 The load value prepared by Check whether the data of v65rg1 is Load detection value negative

load sensors 3 and 4 (in the negative. -30% is indicated as check

case that four load sensors 0xFFFFFFE2. For example, care is

are installed) is -30% or needed if the data of N.L. is between

below. 0x0–0xFFFFFE2.

0x0100 The output value of the load When the data of x65wg1 is 0x39B or Load sensor output value zero

sensor 1 is 0x39B or over. over: check

0x0200 The output value of the load When the data of x65wg2 is 0x64 or

sensor 2 is 0x64 or below. below

0x0400 The output value of the load When the data of x65wg3 is 0x39B or

sensor 3 is 0x39B or over. over

0x0800 The output value of the load When the data of x65wg4 is 0x64 or

sensor 4 is 0x64 or below. below.

Bit 0 = 1
tv65wc > 0x00000010

The A/D output is more than 0x3FF
Check if cage is full load condition.

Bit 1 = 1
x65wg1 ≤ 100

Check if cage is no-load
Bit 2 = 1
x65wg2 ≤ 100
condition
Bit 3 = 1
x65wg3 ≤ 100
Bit 4 = 1
x65wg4 ≤ 100

(2) Check whether x65wg1–x65wg4, v65rg1, and v65rg2 change when passengers enter and exit the cage
during elevator operation.
(3) Confirm that the data of the following addresses are the same as the adjusted ones.
i65wgb1 and i65wgb2 → Bias
i65wgg1 and i65wgg2 → Gain
(4) Check whether the gap of the load sensors below the cage is appropriate. Check for any improper
installation of the sensors.
(5) Check the power supply voltage (DC15V) of the load sensor below the cage.
(6) Check the connection between ¥J1 of SCLB3 located in the OPB and the load sensor.
¥J1-1: DC 15V
¥J1-3: DC 0V
(7) Check whether 0% (Mode 32) and 100% (Mode 35) load setting have been done.
Installation and Maintenance Manual No. S-11-01 P2-69

Repeated failure Slave Micon

VTCD 91
(6 times / 10mins) t59cec

This is activated when problems occur more than six times in 10mins.

(1) Check the data recorded on the trouble monitor to identify the failure and observe the procedure
described in the applicable TCD.
(2) Check trouble frequency, by reading change in t59cw.

Slave Micon
VTCD 93 SDS ON failure
txsdsr

Check that all SDSs on the elevator side are turned on when the elevator is at a terminating floor.

(1) Check the trouble monitor no. 8D (txsdsr).

Bit 0 = 1･･･xsds1d
Bit 1 = 1･･･vxsds2d
Bit 2 = 1･･･vxsds3d
Bit 3 = 1･･･vxsds4d
Bit 4 = 1･･･vxsds5d
･･･
Bit 8 = 1････xsds1u
Bit 9 = 1････vxsds2u
Bit 10 = 1･･･vxsds3u
Bit 11 = 1･･･vxsds4u
Bit 12 = 1･･･vxsds5u
(2) Check the devices, vsdz, p900, and ipm300.
(3) If no abnormality is found in the devices described in (2) above, check the photoelectric SDS
PosiTectors and shielding plates, in accordance with procedures shown in VTCD = B5, B6, and B7.
(4) To clear the trouble code, turn OFF the Lt. SW at a terminating floor.
(5) Check the SDS1D and 1U when the photoelectric SDS system is adopted.
Installation and Maintenance Manual No. S-11-01 P2-70

Slave Micon
VTCD 94 #15BSW ON failure
tx15bsnt[1]

This is activated when the output buffer of the #15BSW contactor is not turned on and when the
contact input of the #15BSW is turned on and continues for 500ms.
(1) Check the data in the circuit diagram shown below.

(2) Check the #15BSW contactor.

Check for any improper installation, adhesion, or for short-circuited wiring.
(3) If any checks are OK, measure the 15bsw signal on VCB to check if normal. Replace if
necessary.

Slave Micon
VTCD 95 Disk brake drag is detected
tvtrqft[1]

This is activated when the torque command during the normal operation detects a value higher than
the specified value.
(1) Check the disk brake for any abnormality.
If an abnormality is found, check the disk brake itself, the brake coil, connector (V1) for any abnormality.
(2) If no abnormality is found in the disk brake:
(a) Check whether the error of the detected load value is within ±10% of the load measured in the
cage. If the error is larger, you need to re-set the load detection (0% and 100%).
(b) Record the torque command (vtrqcmd) during the normal 0% DN operation from the top floor to the
bottom floor (at two places shown in the figure at bottom) and confirm that the rated carrying
capacity and data are not more than the following:

Speed
1 or 2 seconds after the Immediately before
start of normal operation deceleration

Time
Top floor Bottom floor

Rated carrying capacity: Data

~1150kg 0x000021**
~1800kg 0x00002B**
If they exceeded the above, check for any abnormality in the balance point, cage balance, and
guiding system. If no abnormality is found, report the fact to Elevator QA.
Installation and Maintenance Manual No. S-11-01 P2-71

More than 10 occurrences of over Slave Micon

VTCD 96
voltage txovce[1]

This is activated when the number of times overvoltage occurred exceeds 10 times.

(1) Conduct checking in accordance with the procedures shown in VTCD 51 and 56 (hardware) (software).
(2) Replace the filter condenser (When instructed by Elevator QA.

Specification sum error of site Slave Micon

VTCD 97
adjustment area tadjsum

This is activated when the sum check of the field adjustment area (ieepromc and ieepromg) is
executed and when the result does not coincide with the criterion value sum.
(1) Read and check the four-byte data of the field adjustment area specification, iadjsum.
(2) Read the data of the device, vadjsum, and compare the value with (1).
(3) If the compared value is different, read the values of the field adjustment area (ieepromg and ieepromc)
and record each specification value on the table and send it to Elevator QA.
Note: If you changed the field adjustment area in a manner other than setting “MODE” at the elevator
console, you must rewrite the specification sum data, iadjsum, so that it becomes the same as the sum
value of the field adjustment area specification. If you do not rewrite the data, VTCD 97 will be
activated.
Installation and Maintenance Manual No. S-11-01 P2-72

Slave Micon
VTCD 99 INV – HCT failure
tihctdn

This is activated when the INV hall CT output is higher than 500mV while the elevator is at a stop or
when its operation is suppressed.
(1) Check ¥FIH connector of CA9-MPU, as well as the hall CT connector.

Replace ¥FIH connector with a new one, if necessary.
(2) Check P15 ¥SD2-A5 and N15 ¥SD2-A5 of CA9-MPU. Confirm that DC+15V and -15V are output.

If the normal voltage is not output, replace the AVR with a new one.
(3) Check ¥FAI connector of CA9-MPU and GDCI for poor contact.
Replace ¥FAI connector with a new
one, if necessary.
(4) If the connectors mentioned above are functioning properly, replace the hall CT with a new one.

Slave Micon
VTCD 9D CNV – HCT failure
tchctdn

This is activated when the CNV hall CT output is higher than 500mV while the elevator is at a stop or
when its operation is suppressed.
(1) Check ¥FCH connector of CA9-MPU, as well as the hall CT connector.

Replace ¥FCH connector with a new one, if necessary.
(2) Check P15 ¥SD2-A5 and N15 ¥SD2-A5 of CA9-MPU. Confirm that DC+15V and -15V are output.

If the normal voltage is not output, replace the AVR with a new one.
(3) Check ¥FAC connector of CA9-MPU and GDCC for poor contact.
Replace ¥FAC connector with a
new one, if necessary.
(4) If the connectors mentioned above are functioning properly, replace the hall CT with a new one.
Installation and Maintenance Manual No. S-11-01 P2-73

Slave Micon
VTCD A0 DZA PosiTector OPEN failure
txdza

This is activated when the DZA PosiTector has been open for more than 2s with an elevator speed
higher than 10m/min. Please note, however, that this is not activated during maintenance operations.
(1) Check the data in the table shown at bottom.
Check whether the data changes when the elevator passes through the door zone.

Devices at the main and slave microcomputers

xdza
xdzas
vxsped (speed)
(2) Check the corresponding PosiTectors and their wiring.

Replace the wiring of PosiTectors, if necessary.
(3) Check the device signal at CAIO.
(to confirm whether they output 0V when out of door zone).
DZA; ¥Y4-1, ¥Y1-10

Replace the DZA PosiTector with a new one.

Slave Micon
VTCD A1 DZB PosiTector OPEN failure
txdzb

This is activated when the DZB PosiTector has been open for more than 2s with an elevator speed
higher than 10m/min. Please note, however, that this is not activated during maintenance operations.
(1) Check the data in the table shown at bottom.
Check whether the data changes when the elevator passes through the door zone.

Devices at the main and slave microcomputers

xdzb
xdzbs
vxsped (speed)
(2) Check the corresponding PosiTectors and their wiring.

Replace the wiring of PosiTectors, if necessary.
(3) Check the device signal at CAIO.
(to confirm whether they output 0V when out of door zone).
DZB; ¥Y4-2, ¥Y1-10

Replace the DZB PosiTector with a new one.
Installation and Maintenance Manual No. S-11-01 P2-74

Slave Micon
VTCD A2 FML PosiTector OPEN failure
txpsoner

This is activated when the FML PosiTector has been open for more than 2s with an elevator speed
higher than 10m/min. Please note, however, that this is not activated during maintenance operations.
(1) Check the data in the table shown at bottom.
Check whether the data changes when the elevator passes through the door zone.

Devices at the main and slave microcomputers

xfml
zxrs21
zxrs22
vxsped (speed)
(2) Check the corresponding PosiTectors and their wiring.

Replace the wiring of PosiTectors, if necessary.
(3) Check the device signal at CAIO.
(to confirm whether they output 0V when out of door zone).
FML; ¥Y1-4, ¥Y1-10

Replace the FML PosiTector with a new one.

Slave Micon
VTCD A4 INV Micon down more than 6 times
txsidnf[1]

This is detected when the WDT of the CI-SH microcomputer is activated more than six times.

(1) Refer to VTCD 12 (CI-SH microcomputer has broken down).

Installation and Maintenance Manual No. S-11-01 P2-75

Slave Micon
VTCD A5 Motor overload
tovload

Calculate the root mean value of the torque command value to the motor and check for overload for
30s, 1min, 2mins, and 15mins.
(1) Operate the elevator and check for any abnormality in the motor current and speed, and also check for
a magnet brake drag.
(2) Check the situation in the building when the problem occurred.
(3) Check the data of the device tolvload of the slave microcomputer.
Bit 0 = 1 (30s RMS)
irms30s <= wrms30s (torque (%))
Bit 1 = 1 (1min RMS)
irms01m <= wrms01m (torque (%))
Bit 2 = 1 (15min RMS)
irms15m <= wrms15m (torque (%))
Bit 3 = 1 (2min RMS)
irms02m <= wrms02m (torque (%))
(4) Check for any brake drag and excessive running loss.
(5) Check VTCD = 62.

Frequent occurrences of 99E Slave Micon

VTCD A7
rescue operation t99ee

This is activated when the elevator had to stop outside the door zone and land at the nearest floor at a
high or low speed when this has occurred more than six times.
(1) Check the data of the trouble monitor or the TCD to identify the possible causes as to why the
elevator had to stop outside the door zone. Especially, check 40G, 40D for chattering, the
possibility of a power failure, FML, DZA, the DZB PosiTector, ULS, DLS, SDS and rotary
encoder.
(2) Redo floor height measurement.
Installation and Maintenance Manual No. S-11-01 P2-76

Slave Micon
VTCD A8 Detection of free running
tfrun2h

(1) This is detected when the digiflow data is updated for more than 50mm at the time of suppression after
high-speed operation or low-speed operation or micro-running has stopped.
(2) The elevator is stopped when an elevator speed of more than 20m/min is detected while the
elevator operation command (Z10) is turned off. This problem is detected when such a condition
occurs more than six times in 3mins.
(1) The data of the following addresses indicate why the free running is detected.
tfrun2:
Bit 0 = 1
Digiflow data is updated for more than 50mm after the elevator is stopped.
Bit 1 = 1
An elevator speed of more than 20m/min when the elevator is stopped is detected more
than six times.
(2) For Bit 0, check the data of the following address at the time of the suppression after the high-speed
operation or low-speed operation or micro-running has stopped.
vslippsl → Must be $0005 or below. If it is $0005 or over, check the items, (4) and (5), shown below.
(3) For Bit1, check the data of the following address when the elevator is stopped.
ztstopc → Must not be counted; if it is counted, check the items, (4) and (5), shown below.
(4) Check the #15B and #5R contactors and the brake circuit.
Check the main contact and auxiliary contact for any improper installation, adhesion, or short-circuited
wiring.
(5) Check the brake contraction and release operations.
The gap of the brake disk must not exceed the specified value.
(There shall be no delay in the brake release.)
The brake must have been released completely at the time of suppression after the elevator was
stopped.

Frequent occurrences of SDS Slave Micon

VTCD A9
forced speed reduction tsdsvere

This is detected when SDS forced deceleration occurs more than six times in 10mins. Or, this is
detected when the elevator could not land at the nearest floor within 70s because the distance to that
floor was too far, after SDS forced deceleration was output.
(1) Refer to VTCD_DF.
Installation and Maintenance Manual No. S-11-01 P2-77

Slave Micon
VTCD AA FML PosiTector OFF failure
txpsofer

This is detected when FML PosiTector OFF failure is detected in the door zone or when microcomputer
PosiTector OFF failure is detected while the FML is turned on.
(1) FML PosiTector OFF failure is detected when txfmln is ON.
When FML PosiTector OFF failure happens, xfml = 0x0.
Micro-levelling trouble can be analyzed by checking the data of vxmpser.

Bit 31 30 29 28 27 26 25 … 0
vxmpser

RS21, RS22 OFF failure simultaneously

RS21 ON failure

RS22 ON failure

RS21 OFF failure

RS22 OFF failure

Micro-levelling failure

(2) Measure the following devices voltages using a multimeter in door zone.
xfml, xrs21, xrs22, vxdza, vxdzb
FML; ¥Y1-4, ¥Y1-10
RS21; ¥Y2-7, ¥Y1-10
RS22; ¥Y2-8, ¥Y1-10
DZA; ¥Y4-1, ¥Y1-10
DZB; ¥Y4-2, ¥Y1-10
If DC48V is measured, there is ON failure for these devices.
(3) Check the wiring of the PosiTector and the shielding plates.

Replace the FML PosiTector or micro-levelling PosiTector with a new one, if necessary.

Adjust the positions of the shielding plates, if necessary.
Installation and Maintenance Manual No. S-11-01 P2-7 8

Slave Micon
VTCD D1 Torque measurement abnormal tvtrqer

(1) Check the following data.

(i) tvtrqer = 0x80000001 (Bit 0 = 1)
Maximum starting torque (Up direction) data abnormal.
(ii) tvtrqer = 0x80000002 (Bit 1 = 1)
Running torque (Up direction) data abnormal.
(iii) tvtrqer = 0x80000004 (Bit 2 = 1)
Maximum starting torque (Dn direction) data abnormal.
(iv) tvtrqer = 0x80000008 (Bit 3 = 1)
Running torque (Up direction) data abnormal.
(v) tvtrqer = 0x80000010 (Bit 4 = 1)
Torque measurement operation timeout (40s)
(vi) tvtrqer = 0x80000020 (Bit 5 = 1)
Load testing above 10% during the operation of torque
measurement.
(i) – (iv) is detected when the nominal torque has a 50% difference ($1000) from the previous torque
measurement value (The early operation of the torque measurement as the initial set point) in the onsite
adjustment region.
(v) is detected when the torque measurement completion sign is OFF or when all the data of the torque
measurement is 0.
(vi) is detected during the operation of torque measurement, conduct inspection when the load testing is
above 10%.
(2) (i) – (iv) is detected
(a) Confirm the tvtrqer data. Please take note that multiple malfunction can happen in (i) – (iv) at the
same time.
Verify abnormal data.
e.g. when all data are abnormal
tvtrqer = 0x8000000F (Bit 0-3 as ON)
Compare the following data, and verify whether the difference has exceeded $1000.
Bit 0 = 1
vmaxtrqu30  ieepromg[68]
Bit 1 = 1
vratrlmu30  ieepromg[69]
Bit 2 = 1
vmaxtrqd30  ieepromg[70]
Bit 3 = 1
vratrlmu30  ieepromg[71]
(b) The starting condition for the operation of the torque measurement should be a load capacity below
10%. Verify whether there is any load to carry out measurement in the car.
(c) The operation of the torque measurement must be conducted when implementing brake
adjustment, automatic adjustment of magnetic poles, changes in equilibrium or car adjustment
(guide shoe adjustment).
(d) After carrying out the above verification, re-run the torque measurement operation.
(3) (v) is detected
(a) Conduct verification on Q9 tracking data, and confirm whether emergency stop has happened
during the process of the measurement operation.
(b) Re-run the torque measurement operation.
Installation and Maintenance Manual No. S-11-01 P2-79

(4) (vi) is detected

(a) Verify whether is there load in the car
(b) Verify whether the load is above 10% using the portable detector.
(c) If the load test shows above 10% without any load, set load 0% [Mode 32] and set 100% [Mode 35]
via the elevator programming device. For more details, please refer to test run and adjustment.
(d) After carrying out the above verification, re-run the torque measurement operation.

Occurrence history log of INV Slave Micon

VTCD D4
Micon WDT activation txsidnf[0]

This is activated when there is a record that the WDT of the CI-SH microcomputer has been activated.

(1) Conduct checking in accordance with the procedure shown in VTCD A4 (CI-SH microcomputer
broke down more than six times).
Installation and Maintenance Manual No. S-11-01 P2-80

Occurrence history log of INV - Slave Micon

VTCD D6
IGBT error txiigbte[0]

This is activated when there is a record that a INV-IGBT short-circuiting error has occurred.

(1) Refer to VTCD: 50.

More than 5 occurrences of over Slave Micon

VTCD D7
voltage txovce[0]

This is activated when overvoltage has been detected more than five times.

(1) Conduct checking in accordance with the procedure shown in VTCD: 51, 5D, and 96.
(2) Replace main circuit capacitor (company designated model only).
Installation and Maintenance Manual No. S-11-01 P2-81

Slave Micon
VTCD DA INV – HCT abnormal
tihcter

This is activated when INV hall CT output is higher than 250mV while the elevator is at a stop or when
its operation is suppressed.
(1) Conduct checking in accordance with the procedure shown in VTCD 99 (INV hall CT failure).

Slave Micon
VTCD DE Z-phase error pulse
tzer

This is detected when abnomality in the Z-phase pulse interruption status is detected for more than 6 times in
10mins.
(1) Check ¥FG1 connector of CA9-MPU and the rotary encoder for poor contact, broken wires or short-
circuit.
(2) Check whether the ground wire is in good condition.
(3) Measure the rotary encoder voltage between Pin 12 and Pin 13 of the D_Sub connector. Check to see
if the voltage has reached DC5V.
(4) Check to see whether the connection for the Z-phase wiring of the rotary encoder is in good condition or
has broken.
If malfunction still occurs after checking using the abovementioned methods, it can then be considered
as R.E. malfunction.
change the rotary encoder.
Installation and Maintenance Manual No. S-11-01 P2-81A

Power supply interruption Slave Micon

VTCD DF
trouble txvch

This is activated when power supply interruption or power failure occurs during high speed running which
causes AVR1’s xvch signal become LOW.

(1) Check AVR1’s CN4-A3 and CAIO board FE-A1 connection.

(2) Check if building power supply was interrupted.
(3) Check if there is power failure, when elevator was traveling at high speed.
Installation and Maintenance Manual No. S-11-01 P2-82

Occurrence history log of CNV - Slave Micon

VTCD E6
IGBT error txcigbte[0]

This is activated when there is a record that a CNV – IBGT short-circuiting error has occurred.

(1) Refer to VTCD 5C.

Slave Micon
VTCD E8 Micro-levelling abnormal
tvmicro

(1) This is detected when the elevator deviates more than ±70mm from the level during micro-
levelling (prmcrzn_OFF).
(2) This is detected when the speed of the elevator exceeds 10m/min during micro-levelling and
continues for more than 240ms.
(3) This is detected when the speed of the elevator is reversed at a rate of more than 8m/min during
micro-levelling and continues for more than 240ms.

If the above are detected, micro-levelling operation shall stop. However, high speed operation and
maintenance operation can be resumed after the doors are fully closed.
(1) According to VTCD 41 (Micro-levelling out of door zone), check the rotary encoder, load detection, xfml,
xrs21 and xrs22.
(2) Please take note that this problem may be detected when the elevator has returned to a normal state
after the horizontal position has been shifted by more than 75mm during maintenance operation.
(3) Check FML PosiTector insert depth.
Installation and Maintenance Manual No. S-11-01 P2-83

Slave Micon
VTCD EA CNV – HCT abnormal
tchcter

This is activated when CNV – HCT output is higher than 250mV while the elevator is at a stop or when
its operation is suppressed.
(1) Conduct check as per procedure stated in VTCD 9D (CNV –HCT failure).

Slave Micon
VTCD ED Preparation for travel irrationality
tp900psc

This is activated when the door zone PosiTector and the synchronous position are abnormal during the
preparatory operation mode. This is also activated when conditions are met so that synchronous
position change errors may occur when carrying out maintenance assignment.
(1) Check the data of tp900psc.
(a) Bit 0 = 1
Change in synchronous position during maintenance operation (when there is ±185mm
difference between the synchronous position and floor height table, when the elevator stops in the
door zone).
(b) Bit 1 = 1
When conducting catch test using mode 17.
(c) Bit 2 = 1
When the torque exceeds 150% during maintenance operation.
(d) Bit 3 = 1
When the sheave rotates during testing of the brake force.
(e) Bit 4 = 1
Turn ON in-cage maintenance switch and switch OFF the power supply during the stop
state (possibility of brake being release).
(2) When this trouble is detected, it is not possible to conduct preparatory operation.
(3) The trouble may be reset by the following:
 Correction at non-stop floors
 Correction at terminal floors
 Testing of SDS1U or 1D during maintenance operation.
Installation and Maintenance Manual No. S-11-01 P2-84

Slave Micon
VTCD EF SDS speed error 1
tsdsver1

Check speed is produced by comparing the speed that is generated by the SDS operation, and the
speed that is generated from the moving distance detected by the rotary encoder. The fault is activated
when the actual speed exceeds the check speed.
(1) Check the direction of the elevator operation, load in the cage, speed of the elevator and the switch
operation, by checking the data of the trouble monitor (Mode 2).
(2) Check the setting of the SDS, operating margin, speed command value and remaining distance, under
the abovementioned conditions.

Points to check concerning SDS operation

Sw No.
SDS1U, 1D SDS2U, 2D SDS3U, 3D SDS4U, 4D SDS5U, 5D
Item
wsdvd [40] wsdvd [44] wsdvd [48] wsdvd [52]
wsdvd [56]
Operating Margin wsdvb [40] wsdvb [44] wsdvb [48] wsdvb [52]
wsdvb [56]
wsdvd [41] wsdvd [45] wsdvd [49] wsdvd [53]
wsdvd [57]
Speed Command Value wsdvb [41] wsdvb [45] wsdvb [49] wsdvb [53]
wsdvb [57]
wsdvd [42] wsdvd [46] wsdvd [50] wsdvd [54] wsdvd [58]
Remaining Distance wsdvb [42] wsdvb [46] wsdvb [50] wsdvb [54] wsdvb [58]
wsdvd [43] wsdvd [47] wsdvd [51] wsdvd [55]
wsdvd [59]
Operating Point wsdvb [43] wsdvb [47] wsdvb [51] wsdvb [55]
wsdvb [59]

Refer to Installation Manual [S-10-003] [VFI-II: S-10-03, UAG-2T: S-14-01] for SDS settings.
Judgement criteria for the operating margin: SDS1U, 1D: 5m/min, SDS2~5U, 2~5D: 7m/min,
(3) If there is an error in the SDS setting, make the necessary adjustment and operate the elevator in
the UP and DN directions to confirm (2) above.
(4) Check for contact failure of the SDS and check ¥XL1 and ¥XL2 connectors and their wirings.

Replace ¥XL1 and ¥XL2 connectors if necessary.
Installation and Maintenance Manual No. S-11-01 P2-85

2.3 Monitor Data Analysis Table

Monitor No Name Description Check point
65 Number of times that Number of occurrences of sum errors of RAM area constant ―
the specification sum
(Clear all if you change the constant when setting the catch test for
error occurred
equipment to be delivered to government offices [M17])

67 Number of operations to Number of operations from outside the door zone (both the high- ―
land the elevator to the speed operation and operation to land the elevator to the nearest
nearest floor floor)

68 Number of times that Total number of times that A1–C2 rank trouble has occurred ―
A1–C2 rank trouble has
occurred
Installation and Maintenance Manual No. S-11-01 P2-86

Monitor No Name Description Check point

84 Number of emergency Number of emergency stops due to a safety device being activated If no trouble code is displayed, check
stops or when a problem occurred the elevator status monitor first.

85 Number of stops Number of stops activated by the system LSI (control core) Same as above
activated by the system
LSI (control core)

86 Number of times that Number of times that the INV microcomputer broke down Conduct checking in accordance with
the INV microcomputer the procedure shown in VTCD 12 and
broke down 13.

88 Details of the load Details of VTCD 90 (tv65rg) Conduct checking in accordance with
detection failure the procedure shown in VTCD 90.
01: Output saturation of the load sensor
02, 04, 08, 10: Zero is output from the load sensor.
20: Output value deviation abnormal
40, 80: Load detection value negative check
100, 200, 400, 800: Zero is output from the load sensor.
Installation and Maintenance Manual No. S-11-01 P2-87

Monitor No Name Description Check point

89 Number of times that Number of times that allocated position detection failure occurred Check the level of the landing floor.
landing position when the shielding plate was detected at the landing floor
detection failure
occurred

8A SDS deceleration error Position of the SDS when an SDS deceleration error 1 is detected Conduct checking in accordance with
1 the procedure shown in VTCD=DF.
Data: 0x01:600m/min SDS8U,D
0x02:480m/min SDS7U,D
0x04:360m/min SDS6U,D
0x08:240m/min SDS5U,D
0x10:180m/min SDS4U,D
0x20:120m/min SDS3U,D
0x40:90m/min SDS2U,D

0x80:60m/min SDS1U,D
8B DS deceleration error 2 Position of the SDS when an SDS deceleration error 2 is detected Conduct checking in accordance with
the procedure shown in VTCD=71.
Data: 0x01:600m/min SDS8U,D
0x02:480m/min SDS7U,D
0x04:360m/min SDS6U,D
0x08:240m/min SDS5U,D
0x10:180m/min SDS4U,D
0x20:120m/min SDS3U,D
0x40:90m/min SDS2U,D
0x80:60m/min SDS1U,D
Installation and Maintenance Manual No. S-11-01 P2-88

Monitor No Name Description Check point

8C Number of times that an Number of times that an SDS signal reading failure was detected Check the photoelectric SDS PosiTector
SDS reading failure and its wiring.
occurred

8D Details of SDS ON Details of VTCD=93 Conduct checking in accordance with

failure the procedure shown in VTCD=93.

8E Z-phase reading failure Correction of a magnetic pole at more than 30 degrees has been ―
recorded.

8F Details of the detected Details of VTCD=A8 Conduct checking in accordance with

free running the procedure shown in VTCD=A8.

94 Number of delays of the Switched landing floor detection failure ―

digiflow in detecting the
floors to stop

95 Number of times that Number of instantaneous stops in the event of power failure (This is -
the IRQ interrupt signal activated when the power supply is turned off.)
was output in the event
of power failure

96 Number of stops due to This is activated when the elevator overruns the floor height table Check the FML and DZA PosiTector.
digiflow overrun value by 50 (mm)
Installation and Maintenance Manual No. S-11-01 P2-89

Monitor No Name Description Check point

97 Number of occurrences This is activated when the floor height pitch is less than 1000 (mm). If the items shown at left are normal,
that the floor pitch was check the floor height table (ipm300pt
Check the position of the shielding plate.
insufficient [0] bottom floor) to confirm whether the
floor pitch is appropriate.

98 Number of times that If the accumulated total occurrences of overvoltage exceeds five Conduct checking in accordance with
overvoltage was times, VTCD D7 is activated; if it exceeds 10 times, VTCD 96 is the procedure shown in VTCD 96.
detected in the past activated.

99 Synchronization Details of VTCD 70 (tp900ps) Conduct checking in accordance with

position trouble monitor the procedure shown in VTCD 70.

9A Number of floors This is activated when the number of floors exceeds the number of Check the FML shielding plate.
exceeding that of floor floors of the elevator in question.
height measurement

9B Number of times that Number of times that the elevator stops during the floor height －
the elevator stops measurement operation
during floor height
measurement
Installation and Maintenance Manual No. S-11-01 P2-90

Monitor No Name Description Check point

9C Details of SAE data Details of VTCD C0 Refer to VTCD C0.
abnormality

A4 Number of Number of times that the backup circuit of the micro-running was Refer to VTCD D8.
abnormalities activated
experienced during the
micro-running

A6 Number of times that Number of times that the reverse distance exceeded 60 mm when Check the startup compensation value
the reversed the elevator was started from the top floor or the bottom floor and the magnetic poles.
reinforcement plate was
detected

A8 Details of the motor Details of VTCD A5 Refer to VTCD A5.

overload

A9 Details of the Details of VTCD 73 Refer to VTCD 73.

photoelectric SDS
shielding plate
abnormality

AA,AB Record of UCMP UCMP failure (details of VTCD 30) Refer to ELK09-24.
abnormalities
Installation and Maintenance Manual No. S-11-01 P2-91

Monitor No Name Description Check point

AB UCMP revision display Display of revised safety control program Refer to ELK09-24.

AD Number of times that Z- Number of times that the Z-phase pulse ON/OFF failure was Refer to VTCD 9B.
phase pulse ON/OFF detected
failure was detected

AE Number of times that Number of times that an error pulse was detected during the Z- Refer to VTCD CE.
incorrect Z-phase pulse phase
was detected

B2 Details of run command Details of ZTCD 46 Refer to ZTCD 46.

input buffer ON failure

B3 Details of cage I/O Details of ZTCD 90 Refer to ZTCD 90.

terminal transmission
failure

B4 Details of operation Details of ZTCD 91 Refer to ZTCD 91.

panel I/O terminal
transmission failure
Installation and Maintenance Manual No. S-11-01 P2-92

Monitor No Name Description Check point

B5 Number of integrated Number of times that the integrated microcomputer was restarted Conduct checking in accordance with
microcomputer restarts 3.3 Restart integrated microcomputer.

B6 Number of program Number of times that a program sum error occurred ―

sum errors

B7 Number of unknown Number of times that an unknown interruption occurred ―

interruptions

B8 Number of ECC errors Number of times that a ZTCD F0 (ECC error) occurred Refer to ZTCD F0.
(hexadecimal number)
Installation and Maintenance Manual No. S-11-01 P2-93

Monitor No Name Description Check point

C0 Number of close locks Number of times that a ZTCD D7 (t101tc) occurred (hexadecimal Check the statuses of the OLS, DS,
number) and GS.

C1 Number of open locks Number of times that a ZTCD D7 (t102tc) occurred (hexadecimal Check the statuses of the OLS, DS,
number) and GS.

C2 Number of N-contact Details of ZTCD D5 Refer to ZTCD D5.

OFF failures

C3 Number of operation Number of times that a ZTCD 16 occurred Refer to ZTCD 16.
mode input signal
failures

C4 Record of door Records of ZTCD 98–A1 troubles Refer to ZTCD 98–A1.

microcomputer troubles
Installation and Maintenance Manual No. S-11-01 P2-94

Monitor No Name Description Check point

C6 Number of operations Number of times loud voices were detected －
where the elevator
returned to the nearest
floor due to loud voices
detected

C7 Record of door Record of ZTCD E7–EC troubles Refer to ZTCD E7–EC.

microcomputer failures

D0~D3 Record of front door D0/D4: BIT0:ZTCD18, BIT1:ZTCD19, BIT2:ZTCD42, BIT3:ZTCD43 Refer to the TCDs shown at left
TCDs
BIT4: ZTCD62, BIT5:ZTCD82, BIT6:ZTCD90, BIT7:ZTCD91 D0–3: Front TCDs
D1/D5: BIT0:ZTCD98, BIT1:ZTCD99, BIT2:ZTCD9A, BIT3:ZTCD9B D4–7: Rear TCDs
BIT4: ZTCD9D, BIT5:ZTCD9E, BIT6:ZTCD9F, BIT7:ZTCDA0
D4~D7 Record of rear door D2/D6:BIT0:ZTCDA1, BIT1:ZTCDA2, BIT2:ZTCDAE, BIT3:ZTCDD1
TCDs
BIT4:ZTCDD7, BIT5:ZTCDD8, BIT6:ZTCDD9, BIT7:ZTCDE5
D3/D7:BIT0:ZTCDE7, BIT1:ZTCDE8, BIT2:ZTCDEB, BIT3: ZTCDE9
BIT4: ZTCDEC
Installation and Maintenance Manual No. S-11-01 P3-1
3 SCL transmission
The SCL transmission of CA09 consists of the cage and hall (I/O) transmission line,
network transmission line, and monitoring panel transmission line. This document describes
the procedure to confirm whether the transmission is conducted normally and the procedure
to examine matters in the event of an abnormality.
If an SCL transmission failure occurs, investigate the matter in accordance with the
steps shown in the SCL troubleshooting flowchart in Figure 3.1.

Start

If any
problem is N
detected

TCD=90 TCD=C0 TCD=C6

Cage I/O Communication Individual
terminal failure among elevator hall
communication elevators in a call circuit
failure group failure

Table 3.1.1 Table 3.2.1 Table 3.1.1

Table 3.2.2

END

Figure 3.1 SCL troubleshooting flowchart

Installation and Maintenance Manual No. S-11-01 P3-2
3.1 Cage and hall transmission line
(1) Transmission status

Check whether SCL transmission is normal or not, as follows.

Connect a maintenance console to the RS-232C terminal (¥SS) of the control panel,
and check the “OK flag” and the data for “the error counter” to confirm the transmission
status.

(a) Procedure for checking the “OK” flag

Operate the elevator console as follows to examine the data.
① Press “Mode 22 Set”.
② Enter the “OK flag” address and press “Set”.
For the “OK flag” addresses, refer to Table 3.1.

(b) Judgment on the “OK flag” in accordance with the displayed data
① When it is normal:
0x80 is displayed and does not change.
② When it is abnormal:
0x80 changes to 0x81 and 0x82, or either 0x00, 0x01, or 0x02. Or, 0x03 is
displayed.

(c) Procedure to examine the “error counter”

Operate the elevator console as follows to examine the data.
① Press “Mode 22 Set”.
② Enter the “error counter” address and press “Set”.
For the “error counter” addresses, refer to Table 3.1.

(d) Judgment on the “error counter” in accordance with the displayed data
① When it is normal:
0x00 is displayed and does not change.
② When it is abnormal:
Data other than 0x00 is displayed.
Please note, however, that this counter is cleared only when the power supply to
the MPU is turned OFF and ON or when “Mode 2 clear” is executed. If data other
than 0x00 is displayed, set data 0x00 and confirm whether the error counter is
reset. Data 0x00 must be set after cancelling “Protect”.

(e) Procedure for cancelling “Protect”

Operate the elevator console as follows to examine the data.
① Enter 0xA5007000 (q7systm) and press “Set”.
② Enter 0x40000000 and then press “Set”.
③ Enter the address you want to reset to zero and enter 0x00000000.

(2) Troubleshooting in the event of a transmission failure

The possible causes of a transmission failure include the following:

(a) Power supply circuit is abnormal.

(b) Signal lines are abnormal.
(c) Dip switches of the printed board have not been set properly.
(d) Components of the printed board are defective.
(e) Software is not functioning properly.
Installation and Maintenance Manual No. S-11-01 P3-3

For (d) and (e), the possible causes of the failure lie in the printed board; replace the
printed board with a new one.
Check (a) through (c) as follows:

(3) Procedure to identify the source of the problem in the event of a cage transmission
failure
Set 0x00 in the error counter address field shown in Table 3.1 and confirm that the error
counter counts upward. Since the data value may indicate the possible causes of the
problem shown in Table 3.2, check them.

(4) Procedure to identify the source of the problem in the event of a hall transmission failure
Set 0x00 in the error counter address field shown in Table 3.1 and confirm that the error
counter counts upward. Since the data value may indicate the possible causes of the
problem shown in Table 3.2, check it.

Table 3.1 List of OK flags and error counter addresses for SCL transmission lines

Description of transmission No. 1 transmission line (front side) Remarks

OK flag Error counter

Cage I/O transmission 0xB400032E 0xB400037E SCLB3

Cage I/O transmission 0xB400032A 0xB400037A HVF5-CPS

Door microcomputer data transmission 0xB400032B 0xB400037B HVF5-CMU

Operation panel transmission 0xB400032C 0xB400037C OPB-MPU

LCD CPI transmission 0xB4000328 0xB4000378 MTB-CIO

HEES LMS 0xB400032F 0xB400037F SVP-CON

HLP transmission 1st station 0xB4000324 0xB4000374 UA2-HLP1

HLP transmission 2nd station 0xB4000325 0xB4000375 UA2-HLP2

HLP transmission 3rd station 0xB4000326 0xB4000376 UA2-HLP3

HLP transmission 4th station 0xB4000327 0xB4000377 UA2-HLP4

Hall I/O Transmission SSTOKF --- SST

Hall I/O Transmission INDOKF ---

Table 3.2: Procedure for identifying the source of the problem in the event of a cage and
hall SCL transmission failure

Data of the error 0x8F 0x1F / 0x9F

counter
(1) No P15V (1) Terminating resistor not set properly
Defect (2) Broken signal line (2) External noise
(3) Short-circuited signal line
Installation and Maintenance Manual No. S-11-01 P3-4
3.2 Network transmission line
Check whether the SCL transmission status is normal or not as follows.
(1) Check the transmission status on the group control panel
Connect a maintenance console to the “SS” terminal of the control MPU equipped with the
control panel and check the “OK flag” and the data for the “error counter” that can be used
for checking the transmission status.

(2) Check the transmission status at the elevator

Connect the elevator console to the RS-232C terminal of the control panel in the bottom
floor hall button unit or in the cage, and check the “OK flag” and the data for the “the error
counter” that can be used for checking the transmission status.

(3) Procedure for checking the “OK flag”

(a) Check for “OK flag” in accordance with Table 3.3 (elevator) and Table 3.4 (group
control).
(b) Make a judgment as follows, in accordance with the displayed data:
① When it is normal:
0x80 is displayed and does not change.
② When it is abnormal:
0x80 changes to 0x81 and 0x82, or either 0x00, 0x01, or 0x02. Or, 0x03 is displayed.

(4) Procedure for examining the “error counter”

(a) Check the “error counter” in accordance with Table 3.3 (elevator) and Table 3.4
(group control).
(b) When you write data in the error counter:
① For the group control, set 0x40000000 to 0xA5007000.
② For the elevator, set 0x40000000 to 0xA5007000.
(c) Make a judgment as follows, in accordance with the displayed data:
① When it is normal:
0x00 is displayed and does not change.
② When it is abnormal:
Data other than 0x00 is displayed.

(5) Procedure for identifying the source of the problem

Set 0x00 to the error counter and confirm that the error counter counts upward. Since the
data value may indicate the possible causes of the problem shown in Table 3.5, check them.
Installation and Maintenance Manual No. S-11-01 P3-5

Table 3.3: List of OK flags and error counter addresses for network SCL transmission lines
at the elevator side
Description of transmission OK flag Error counter
Individual, DSK, and cage position transmission 0xB4000B20 0xB4000B50

Individual, DSK answer lamp data transmission 0xB4000B21 0xB4000B51

Coded data transmission during DSK 0xB4000B22 0xB4000B52

Answer lamp data transmission during group control 0xB4000B26 0xB4000B56

(FI-10)
Answer lamp data transmission during group control 0xB4000B27 0xB4000B57
(FI-100/FI-600)
Transmission and reception between the group and the no.1 0xB4000B28 0xB4000B58
elevator during group control (FI-10/FI-100/FI-600)
Transmission and reception between the group and the no.2 0xB4000B29 0xB4000B59
elevator during group control (FI-10/FI-100/FI-600)
Transmission and reception between the group and the no.3 0xB4000B2A 0xB4000B5A
elevator during group control (FI-10/FI-100/FI-600)
Transmission and reception between the group and the no.4 0xB4000B2B 0xB4000B5B
elevator during group control (FI-10/FI-100/FI-600)
Transmission and reception between the group and the no.5 0xB4000B2C 0xB4000B5C
elevator during group control (FI-100/FI-600)
Transmission and reception between the group and the no.6 0xB4000B2D 0xB4000B5D
elevator during group control (FI-100/FI-600)
Transmission and reception between the group and the no.7 0xB4000B2E 0xB4000B5E
elevator during group control (FI-100/FI-600)
Transmission and reception between the group and the no.8 0xB4000B2F 0xB4000B5F
elevator during group control (FI-100/FI-600)
Transmission and reception between the DSK no. 1 unit and 0xB4000B30 0xB4000B60
the no. 2 elevator

Table 3.4: List of OK flags and error counter addresses for network SCL transmission lines
at the group control side

Description of transmission OK flag Error counter

Intelligent terminal lmdp+1A2 lmdp+1C2

Common lmdp+1A7 lmdp+1C7

No1.elevator lmdp+1A8 lmdp+1C8

No2.elevator lmdp+1A9 lmdp+1C9

No3.elevator lmdp+1AA lmdp+1CA

Incoming power control panel No4.elevator lmdp+1AB lmdp+1CB

No5.elevator lmdp+1AC lmdp+1CC

No6.elevator lmdp+1AD lmdp+1CD

No7.elevator lmdp+1AE lmdp+1CE

No8.elevator lmdp+1AF lmdp+1CF

Installation and Maintenance Manual No. S-11-01 P3-6

Table 3.5: Source of the problem in the event of network SCL transmission failure

Data of the error 0x8F 0xCF 0x9F

counter
(1) No P15 (1) Short-circuited signal (1) Terminating resistor
(2) Broken signal line line not connected
Defect (2) Short-circuited signal
(2) Terminating resistor
line
not connected

3.3 Confirm SCL communication after installation and adjustment

Confirm the communication status with the elevator cage during the inspection at the
factory and during the debugging operation before delivery to the customer.
(1) Clear all trouble data before starting inspection at the factory.
(2) Confirm that TCD=90 (cage I/O terminal transmission is abnormal) is not detected
during the inspection at the factory of the HBS and upon completion of the debugging
operation before delivery to the customer.
(3) When TCD=90 is detected, report it to Elevator QA and follow the instructions on
countermeasures given by Elevator QA.

3.4 Restart integrated microcomputer

If an abnormality of the integrated microcomputer is detected (ZTCD 92)—if the monitor no.
78 is incremented or if the LED of the UPG is turned off (the LED “UPG” of MPU is turned
off)—when it is connected to the elevator console, the microcomputer may have been
restarted or the microcomputer may have broken down. On such an occasion, follow the
troubleshooting procedure shown below. Do not turn off the power supply at the building
side until troubleshooting is completed.

3.4.1 Items to be checked

Check the following items:
(1) Check the power supply in accordance with the procedure described in ZTCD 10
“Reference voltage at the receiving circuit is abnormal”.
(2) If there is a printed board connected to the “FM” of the MPU, check for contact failure of
the connector.
(3) Check each fuse to confirm that it is not blown. Replace the blown fuses with new ones.

3.4.2 Procedure for recording data

If no abnormality is found in the abovementioned components, record the data following the
procedure shown below.
(1) Enter any long words (two words) into “Data R/W” to check the data of the 0xA50074E0.
(2) If the displayed address data is other than “0x50074E0”, record 34 long words, including
the displayed address, on the sheet for recording the microcomputer system errors
shown in Table 3.6.
(3) After recording the data, make contact with Elevator QA.
(4) After confirming the above, turn the power supply off and on to see if the same
problem recurs.
Installation and Maintenance Manual No. S-11-01 P3-7

Table 3.6: Sheet for recording microcomputer system errors

Customer Subject Issue No

Product Operation #
Name [Base Name]

Address 2 C300F800 C300F888 C300F910 C300F998 C300FA20 C300FAA8 C300FB30 C300FBB8 C300FC40

Address 1 A5007458 A50073D0 A5007348 A50072C0 A5007238 A50071B0 A5007128 A50070A0 A5007018 Label / Data

Number 1st 2nd 3rd 4th 5th 6th 7th 8th 9th rsyss

Year Month, Day

Day of week Hrs Mins Secs rntkno

TK Classification

SR(SSR) rresetc

MACH

MACL rsumf

PR

VBR rsumfs

GBR

PC(SPC) rstatus

R0

R1 rswdt

R2

R3

R4 Meaning of symbols

R5 TK

R6 Task No. at which error occurs

R7 SR(SSR)

R8 Status Register

R9 PC(SPC)

R10 PC at which error occurs

R11 PR

R12 Last branch address

R13

R14 Classification

R15(SP) 0001 General invalid OP

R0_BANK 0002 Slot invalid OP

R1_BANK 0003 Address error C

R2_BANK 0004 Address error D

R3_BANK 0005 Bus error, NMI

R4_BANK 0006 TLB-related error

R5_BANK 0007 Memory protect

R6_BANK

R7_BANK

Note: Usually, record address 1. Then, record address 2 when you turn the power supply off and on, in
order to conduct restoration work.
List of ID numbers
_cpu_exp_tbl : 0020(A5007018h) rsyss :0107 rsumf :0140
_cpu_exp_tb : 0734(C300F800h) rstatus :0108
_cpu_exp_adr : 0021(A50074E0h) rresetc :0109
Rntkno : 0100 rswdt :0110
Installation and Maintenance Manual No. S-11-01 P3
REVISION RECORD
HITACHI ELEVATOR ASIA PTE LTD Doc. No.: S-11-01 Revision Page No.: 1

SYM Amend Revision History Date Issuer Chkd. Appd.

Pg. Rev.

2-17 1 Amend Information for ZTCD A6

03/04/2012 Song CY Cheong KT Alvin K
2-48 1 Amend Information for VTCD 45
4 1 Amend Distribution Destination
1-4 1 Add VTCD 28.
Add ZTCD 41.
1-5 1
Change holding type of VTCD 38.
1-6 1 Add ZTCD 63.
Shift t97drft from ZTCD 81 to ZTCD D3.
1-7 1 Add ZTCD 83, 85.

1-8 1 Add ZTCD 95, 9C, AD.

Change trouble code rank.
1-9 1 Add ZTCD B2, B3, CD.
Revise ZTCD D8, D9.
1-10 1 Add ZTCD E3, EA.
Add VTCD DF.
2-7 1 Amend information of ZTCD 1A.
2-7A 1 Add ZTCD 41.
2-11 1 Amend circuit diagram of ZTCD 62.
2-11A 1 Add ZTCD63.
2-12A 1 Add ZTCD 83.
2-13 1 Amend circuit dwg and info of ZTCD 84.
2-13A 1 Add ZTCD 85.
MARCOS
2-14A 1 Add ZTCD 95. 05/03/2014 YEHTUN K.SATO
CHEONG KT
2-16A 1 Add ZTCD 9C.
2-18 1 Amend information of ZTCD A9.
2-18A 1 Add ZTCD AD.
2-19A 1 Add ZTCD B2 and ZTCD B3.
2-24A 1 Add ZTCD CD.
2-25 1 Amend info & diagram of ZTCD D1.
2-26 1 Add information of ZTCD D7.
2-26 1 Amend information of ZTCD D8.
2-27 1 Amend information of ZTCD D9.
2-27A 1 Add ZTCD E3 and ZTCD EA.
2-29 1 Add information of VTCD 14.
2-30 1 Add information of VTCD 18.
2-32 1 Amend information of VTCD 1B.
2-34 1 Add VTCD 28.
2-39 1 Add and amend information of VTCD 37.
2-40 1 Add information of VTCD 39.
2-41 1 Add information of VTCD 3B.
2-42 1 Amend information of VTCD 3C.
2-45 1 Add information of VTCD 41.
Installation and Maintenance Manual No. S-11-01 P3

HITACHI ELEVATOR ASIA PTE LTD Doc. No.: S-11-01 Revision Page No.: 1

SYM Amend Revision History Date Issuer Chkd. Appd.

Pg. Rev.

2-49 1 Amend diagram of VTCD 47.

2-50 1 Amend diagram of VTCD 48.
2-53 1 Amend & add information of VTCD 50.
2-55 1 Amend information of VTCD 53.
2-57 1 Amend diagram of VTCD 58.
2-58 1 Add information of VTCD 5A.
05/03/2014 YEHTUN MARCOS K.SATO
2-59 1 Add information of VTCD 5C. CHEONG KT
2-66 1 Amend info of VTCD 71 & VTCD 72.
2-69 1 Add information of VTCD 91.
2-80 1 Add information of VTCD D7.
2-81A 1 Add VTCD DF.
2-84 1 Amend information of VTCD EF.
4 2 Separate Product QA & Regional QA.
Installation and Maintenance Manual No. S-11-01 P4

DISTRIBUTION LIST

S/No Receiver No. of Copies Remarks

1 HEA QA PRODUCT QA DEPT 1

2 HEA INSTALLTION DEPT 1

3 HEA MAINTENANCE DEPT 1

HEA ENGINEERING DEPT
4 1
1 RSE DEPT

5 HEA REGIONAL QA DEPT 1

10

11

12

13

14

15

16

17

18