Technical Parameters Basic Information Brand: ALSTOM / Converteam Part Number: MVTT14B1BA0773C Form Factor: Standard 3U slide-in rack pluggable master control module Matching peripheral boards: MVAX series high voltage auxiliary power supply, MCGG/M5A/M57 analog sampling & safety interlock boards, KCEG/KVFG IGBT gate drive monitoring PCBs, MCAA/TRVC/P127 TCMS communication gateway boards, MMLB01/MMLG01 digital I/O expansion boards Application: European urban metro & light rail traction converter core master control unit, motor traction & electric braking full-process operation control Control Power Supply Rated operating voltage: DC 24V vehicle control power Operating voltage range: 18 VDC ~ 30 VDC Max power consumption: 10.8 W Protection circuit: Reverse polarity blocking diode, TVS surge absorption filter, input overcurrent fuse, undervoltage lockout protection Core Control Hardware & Algorithm Main computing chip: Industrial high-speed DSP dedicated to railway traction control Control algorithm: Full field-oriented triple closed-loop vector control (Torque / Speed / Rotor Position) Motor position feedback interfaces: Resolver, incremental encoder, multi-turn absolute encoder compatible Real-time control cycle: Microsecond-level current loop response, smooth traction/braking torque switching Fault storage unit: Onboard large-capacity non-volatile memory, records timestamped fault codes, operation snapshots and long-term running logs Multi-Channel Independent Communication Interfaces Internal rack high-speed proprietary backplane bus Bidirectional real-time data interaction with all rack plug-in boards: receive voltage/current/temperature sampling data and safety interlock signals; send PWM drive commands to IGBT gate drive boards Galvanically isolated TCMS vehicle train communication bus Upload traction operating status, power module temperature, fault records to vehicle central diagnostic unit; receive traction/brake torque commands, speed limit, fault reset and operation mode instructions from vehicle TCMS master Local maintenance debug port: For parameter calibration, control program download, real-time data monitoring and field fault diagnosis System Safety & Logic Functions Centralized processing of all high-voltage safety chain signals, dual safety protection mechanism: hardware fast pulse blocking + software over-limit fault protection Real-time dynamic calculation of motor torque, DC-link bus voltage, power device temperature, execute overcurrent, overload, overheat, overspeed, overvoltage/undervoltage protection logic Synchronous generation of high-precision PWM pulse signals, distributed to each IGBT gate drive board via rack internal bus Mechanical Specifications Overall dimension: H130 mm × W98 mm × D220 mm PCB protection: Full acrylic conformal coating, anti-moisture, anti-corrosion, anti-dust, anti-mold Front panel LED status indicators: Power OK, System Run, Rack Bus Link, TCMS Bus Active, General Fault Alarm, Maintenance Port Activity Fastening structure: Anti-looseness lock buckle, stable electrical contact under long-term vehicle running vibration and shock Railway Environmental & EU EN Compliance Operating ambient temperature: -25 ℃ ~ +70 ℃ Storage & transport temperature: -40 ℃ ~ +85 ℃ Relative humidity: 5% ~ 95% non-condensing, non-condensation allowed Vibration test standard: IEC 61373 railway rolling stock Shock resistance: 12g half-sine wave impact test EMC standard: EN 50121-3-2 railway vehicle electromagnetic compatibility Fire safety grade: EN 45545-2 HL2 low smoke, low toxicity flame retardant material