Datasheet
LTX-VCI Datasheet
LTX-VCI Iss1.05
RealTime Control Systems Ltd. Park House, Greenhill Crescent, Watford WD18 8PH. Tel 01923 233384 Fax 01923 233385 Page 10
Web:
www.realtime-controls.co.uk
, E-mail:
support@realtime-controls.co.uk
LTX-VCI Datasheet Issue 1.05.01 12/07/2003 Doc No. 92101
Fault Mapping
The following mapping provides a list of the Mitsubishi fault codes that are reported individually
and the corresponding single byte codes that the VCI generates for these codes. In some
control systems the VCI code will be visible and manual translation will have to performed, in
others the supervisor software can be used to automatically map the VCI code to the original
Mitsubishi fault code so the native codes can be presented. Future versions of LTX controllers
will allow the original codes to be reported directly.
LTX-VCI Code Mitsubishi Codes
Decimal Hex Numeric
Code
Fault Description
21 15 110 Equipment abnormality
22 16 120 Equipment abnormality
23 17 403 Sub IF / outdoor communication trouble
24 18 900 Test run
25 19 10*0 Ref.cycle abnormality
26 1A 11** Ref.cycle temperature abnormality - Common operand: **
27 1B 12** Ref.cycle temperature abnormality allowance - Common operand: **
28 1C 13** Ref.cycle pressure abnormality - Common operand: **
29 1D 14** Ref.cycle pressure abnormality allowance - Common operand: **
30 1E 1500 Ref.cycle not operate due to overcharge
31 1F 1501 Ref.cycle not operate due to undercharge
32 20 1502 Ref.cycle not operate due to liquid back
33 21 1503 Ref.cycle not operate due to coil frost
34 22 1504 Ref.cycle not operate due to overheat protection
35 23 1505 Ref.cycle not operate due to compressor vacuum operation protection
36 24 1509 Abnormal high pressure (closed ball valve)
37 25 20*0 Water system abnormality
38 26 21** Water system temperature abnormality - Common operand: **
39 27 22** Allowance of water system temperature abnomality - Common operand : **
40 28 23** Water system pressure abnormality - Common operand: **
41 29 24** Water system pressure abnormality allowance - Common operand: **
42 2A 2500 Water system not operate due to water leak
43 2B 2501 Water system not operate due to water supply suspension
44 2C 2502 Water system not operate due to drain pump abnormality
45 2D 2503 Water system not operate due to drain sensor abnormality
46 2E 2504 Water system not operate due to liquid level abnormality
47 2F 2505 Water system not operate due to cool water valve abnormality
48 30 2506 Water system not operate due to warm water valve abnormality
49 31 2600 Water system operation restricted due to water leak
50 32 2601 Water system operation restricted due to water supply suspension
51 33 2602 Water system operation restricted due to drain pump abnormality
52 34 2603 Water system operation restricted due to drain sensor abnormality
53 35 2604 Water system operation restricted due to liquid level abnormality
54 36 3600 Air system operation restricted due to filter clogging
55 37 3601 Air system operation restricted due to filter maintenance
56 38 3602 Air system operation restricted due to damper position detecting abnormality
57 39 37** Air system operation humidity abnormality allowance - Common operand: **
58 3A 4000 Electric system abnormality
59 3B 40*0 Electric system abnormality in line *
60 3C 4100 Electric system not operate due to overcurrent shut-off
61 3D 4101 Electric system not operate due to overcurrent protection
62 3E 4102 Electric system not operate due to open phase
63 3F 4103 Electric system not operate due to reversed phase
64 40 4104 Electric system not operate due to electric leak
65 41 4105 Electric system not operate due to short circuit
66 42 4106 Electric system not operate due to self power supply OFF
67 43 4107 Electric system not operate due to overlord
68 44 4108 Electric system not operate due to overcurrent relay 51C










