Technical Parameters Basic Information Brand: Alstom Converteam Part Number: 762084 A62-319 Form Factor: Standard 3U rack pluggable module Matching equipment: EP3-E-4-EN / EPIC-III traction control CPU, IGBT gate drive boards, rack auxiliary power supply Application: Urban metro, light rail traction converter high-precision analog monitoring and hardware safety interlock control Control Power Supply Rated operating voltage: DC 24V vehicle control power Operating range: 18 VDC ~ 30 VDC Max power consumption: 9.6 W Protection: Reverse polarity diode, TVS surge suppression filter, input overcurrent fuse Analog Sampling Channels Isolated high-voltage sampling: DC-link bus voltage real-time detection for inverter closed-loop control Isolated current sampling: Three-phase inverter output current, braking resistor current acquisition Multi-channel 4–20mA analog input: IGBT module temperature, traction motor winding temperature, cooling water/air temperature Multi-stage RC EMI filter built-in to suppress high-frequency switching noise from power IGBTs Digital Safety Interlock IO 12-way opto-isolated DC24V digital inputs: Cabinet safety door contact, emergency stop loop, cooling fan fault, high-voltage earthing switch state feedback Independent hardware interlock logic: Immediately output hardware blocking signal to gate drive boards once safety loop breaks, separate from main CPU software logic Rack Internal Communication High-speed proprietary backplane bus for bidirectional data transmission: upload voltage/current/temperature sampling values and interlock fault status to master traction CPU, receive synchronous clock signals from main control board. 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, Sampling Active, Safety Interlock Fault, Communication Loss Fastening: Anti-looseness lock buckle, stable electrical contact under long-term vehicle vibration operation Railway Environmental & EU Compliance Operating ambient temperature: -25 ℃ ~ +70 ℃ Storage & transport temperature: -40 ℃ ~ +85 ℃ Relative humidity: 5% ~ 95% non-condensing Vibration 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