Technical Parameters Basic Information Brand: ALSTOM / Converteam Part Number: MCAA11R1BP9033C Form Factor: Standard 3U slide-in rack pluggable module Matching System: MVTP series traction master control CPU, MVAX series high voltage auxiliary power supply, M5A/M57 analog sampling boards, KCEG/KVFG IGBT gate drive boards, MMLB01/MMLG01 digital I/O expansion boards Application: European urban metro, light rail traction converter, vehicle train bus communication interaction and high-voltage safety interlock logic processing Control Power Supply Rated operating voltage: DC 24V vehicle control power Operating voltage range: 18 VDC ~ 30 VDC Max power consumption: 8.9 W Protection circuit: Reverse polarity protection diode, TVS surge absorption filter, input overcurrent fuse, undervoltage lockout protection Opto-Isolated Digital IO Channels DC24V Isolated Digital Inputs Pantograph up/down feedback, high voltage earthing switch state, cabinet safety door interlock loop, emergency stop safety chain, cooling fan running/fault feedback, inverter ready signal, pre-charge completion feedback, air pressure monitoring contact DC24V Relay Drive Digital Outputs Traction enable output, electric braking activation control, system general fault alarm relay drive, cooling fan start-stop trigger, high voltage permission contact drive, maintenance mode indication output All IO channels built-in multi-stage EMI filter to restrain high-frequency switching noise generated by traction IGBT inverter Hardware signal debounce circuit to eliminate transient signal jitter caused by vehicle power grid fluctuation Dual Independent Isolated Communication Interfaces Internal rack high-speed proprietary backplane bus Bidirectional real-time data exchange with MVTP traction master CPU, including traction torque command, DC-link bus voltage, power module temperature, historical fault codes, auxiliary equipment operating status and interlock fault signals Galvanically isolated external TCMS vehicle train bus Upload real-time traction system operating data, timestamped fault records and waveform snapshots to vehicle central diagnostic unit; receive whole-vehicle traction/braking torque commands, speed limit instructions, fault reset signals and mode switching orders from TCMS master controller 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 indicators: Power OK, Rack Bus Communication Normal, TCMS Bus Link Established, General System Fault Alarm, IO Channel Trigger Indicator Fastening structure: Anti-looseness lock buckle, ensures stable electrical contact under long-term vehicle running vibration and impact Railway Environmental & EU EN Compliance Operating ambient temperature: -25 ℃ ~ +70 ℃ Storage & transport temperature: -40 ℃ ~ +85 ℃ Relative humidity: 5% ~ 95% non-condensing 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