LTX-VCI Datasheet Description The RealTime LTX-VCI extends RealTime air-conditioning control solutions by providing a compatible interface to a range of air-conditioning manufacturers. The LTX-VCI acts as virtual interface that allows the existing range of RealTime air-conditioning BMS interfaces and LonWorks Controllers to be instantly compatible with additional airconditioning manufacturers products.
LTX-VCI Datasheet 1 Introduction 1.1 • • • • • 1.
LTX-VCI Datasheet 1.3 Engineering Engineering is a two step process, on one side connecting the VCI with the air-conditioning Interface, on the other connecting the BMS control system via a suitable LTX controller. To engineer a specific system, follow the instructions in this datasheet to set up the linkage to the BMS interface and perform general configuration of the LTX-VCI.
LTX-VCI Datasheet 1.3.2 BMS Interface The VCI consists of four VCI Proxy function blocks that manage data exchange between one or more BMS interfaces and the A/C interface. Each proxy can be bound to a different LTX controller in order to allow the control of up to 64 units. In the default configuration the main proxy, VCI Proxy[0] can be used to directly address up to 64 A/C units. The remaining three proxies VCI Proxy[1] to VCI Proxy[3] each address 16 consecutive units.
LTX-VCI Datasheet Device Interface Sheet: Daikin L-Gateway DCS601A1R Manufacturer Device Name Product Code Program ID Indoor Units VCI Mode Number LTX-VCI compatibility Daikin L-Gateway Prototype DCS601A1R 90:00:87:48:50:04:04:02 64 10 v0.90 or greater Control Function Setpoint Fanspeed Run Mode Louver On/Off Central/Local Control Readback Function Return air temperature Heat-exchanger temperature Fault Code Comments Range restrictions may be applied by LTX interfaces Only low or high speed available.
LTX-VCI Datasheet Operation Notes Master/Slave Operation Some Daikin A/C units operate in AUTO with separate heating and cooling setpoints. The readback values of run-mode and setpoint reflect the actual values the unit is operating to rather than those initially set by the BMS or keypad. With the LTX Master/Slave operation the LTX controllers copy the read-back data from the keypad master and write it into the slave units.
LTX-VCI Datasheet Device Interface Sheet: Mitsubishi LMAP02-E Manufacturer Device Name Product Code Program ID Indoor Units VCI Mode Number LTX-VCI compatibility Mitsubishi LMAP LMAP02-E 90:00:71:00:76:00:02:02 50 20 V1.
LTX-VCI Datasheet 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.
LTX-VCI Datasheet Device Interface Sheet: Mitsubishi LMAP03-E Manufacturer Device Name Product Code Program ID Indoor Units VCI Mode Number LTX-VCI compatibility Mitsubishi LMAP LMAP03-E 90:00:A2:00:76:00:03:03 50 21 V1.05 or greater Control Function Setpoint Fanspeed Run Mode Louver On/Off Central/Local Control Comments Range restrictions may be applied by LTX interfaces LTX Mappings of 0 = LOW, 1 = MID2, 2 = MID1, 3=HIGH Consult LMAP datasheet for mappings for units with fewer fan speeds.
LTX-VCI Datasheet Fault Mapping LTX-VCI Code Decimal Hex 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 40 41 42 43 44 Mitsubishi Codes Numeric Fault Description Code 110 Equipment abnormality 120 Equipment abnormality 403 Sub IF / outdoor communication trouble 900 Test run 10*0 Ref
LTX-VCI Code Decimal Hex 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5D 5E 5F 60 61 62 63 64 65 66 67 68 69 6A 6B 6C 6D 6E 6F 70 71 72 73 74 75 76 77 78 79 7A 7B 124 125 126 127 128 129 130 131 7C 7D 7E 7F 80 81 82 83 132 84 Mitsubishi Codes Numeric Fault Description Code 4109 Electric sy
LTX-VCI Code Decimal Hex Mitsubishi Codes Numeric Fault Description Code 6764 K abnormality - Drain sensor abnormality 6765 K abnormality - Drain pomp abnormality 6766 K abnormality - Coil frost/overheat protection 6767 K abnormality - Outdoor unit trouble - Indoor/outdoor communication error 6771 K abnormality - High pressure abnormality,Low pressure abnormality 6772 K abnormality - Inner thermostat function, Discharge temperature abnormality, Shell thermostat function, Overcurrent protection 6773 K abnor
LTX-VCI Datasheet 2 LonWorks Engineering LTX-VCI v1.05 Prog ID 93:36:A7:47:01:34:00:A1 nvo00Status SNVT_obj_status nvi00Request SNVT_obj_request nvoFileDirectory SNVT_address Configuration Properties LTX-SC.Node nvoQuery unsigned int nvoIndoorData UNVT_Indoor_Data nviUnitSettings UNVT_Unit_Settings nvoIndoorDataEx2 UNVT_Indoor_Data_e2 nviClearance unsigned int Configuration Properties UCPTStartUnitOffset UCPTEndUnitOffset LTX-SC.
LTX-VCI Datasheet 2.
LTX-VCI Datasheet Valid values for these fields are as follows Field unit_number hvac_mode setpoint on_off fan_speed louver filter_state indoor_temp heat_exch_temp unit_fault Valid Values 1..16 {AUTO=0, HEAT=1, COOL=3, FAN ONLY=9} 18.00-29.00 Degrees Centigrade {OFF=0, ON=1} {AUTO=0, LOW=1, MEDIUM=2, HIGH=3} {OFF=0, ON=1} {OK=0,DIRTY=1} -255.00..255.00 -255.00..255.00 1..255, 0 indicates no unit The data is returned from the indoor unit and indicates its current operating state. 2.
LTX-VCI Datasheet 3 Installation Instructions The LTX is installed as follows 2) Mount the LTX on a standard symmetric DIN rail. A clearance of 85mm above and 105mm below the DIN rail centreline should be allowed and 155mm horizontal clearance. See the figure to the right. Connect the LTX Power connector (black) to a 1.5VA 24Vdc supply. The connection is polarity independent. Do not power the device up.
LTX-VCI Datasheet 4 Technical Specification Electrical Environmental Supply 24V DC Power 1.
