Core Specifications

1. Electrical Power Supply
   • Input: 3-phase mains synchronous voltage + auxiliary AC power for internal power conversion
   • Multi-channel isolated DC output: supply power to main control board, fan, signal sampling circuit and trigger circuit
   • Built-in power transformer, filter capacitor, discharge resistance and overcurrent fuses
2. Thyristor Trigger Function
   • Full digital phase-shift trigger circuit, generates 6-way isolated trigger pulses for 6-pulse thyristor rectifier bridge
   • Supports four-quadrant anti-parallel bridge triggering for regenerative braking
   • Built-in pulse transformer for electrical isolation between low-voltage control and high-power main circuit
3. Signal Sampling & Protection
   • Real-time collection of armature CT current, DC bus voltage, heatsink temperature PTC signals
   • Hardware fast protection: overcurrent, short-circuit, mains phase loss, overheating, field loss detection
   • Fault signal feedback to main control board for drive fault code display
4. Mechanical & Environment
   • PCB with conformal coating, anti-dust and anti-corrosion for heavy industrial workshops
   • Mounted vertically inside 6RA24 cabinet, matched with flat cable to main control board
   • Operating temperature: 0 ~ +50°C; weight approx. 0.63–1.34kg
   • Compatible part code: 6RY1243-0BA00

Key Features

1. All-in-one design: auxiliary power supply + synchronous sampling + thyristor pulse trigger + signal detection, simplify internal drive wiring
2. Galvanic isolation via pulse transformers, effectively suppress high-voltage surge interference from thyristor main circuit
3. Independent hardware protection circuit, instant block trigger pulse when fault occurs to avoid thyristor breakdown
4. Complete analog signal conditioning for speed closed-loop and torque closed-loop control of DC motors
5. Standard plug-in spare part, direct replacement for all power grade 6RA24 DC drives
6. Built-in snubber circuit to absorb thyristor voltage spikes and extend power device service life

Applications