I. Product Description
RELIANCE (Ryan Electric) 45C992 is a dedicated power supply substrate for the original drive system. It is compatible with Ryan VZ7000 high-voltage frequency conversion and DC direct current speed control drive units, providing multiple isolated stable voltage DC power supplies for the main control board, drive board, and detection circuit. It is the core component of the low-voltage power supply for the entire set of transmission equipment.
Key Technical Parameters
Input voltage: AC 85–264V wide-range AC input
Multiple DC outputs: ±15VDC, 24VDC, 5VDC
Total output rated power: 120W
Isolation level: Electrical isolation between strong and weak circuits, isolation withstand voltage 2500VAC
Operating environment temperature: 0℃ ~ +55℃
Protection configuration: Input overvoltage, output short circuit, overload, overheat automatic locking
Installation method: Fixed installation by cabinet rail
Compatible systems: VZ7000 high-voltage frequency conversion, 7000 series direct current transmission device
Product Performance
Multiple stable voltage independent outputs, low ripple coefficient, ensuring stable operation of the main control and IGBT drive board, unaffected by grid fluctuations
Full-loop protection design, quickly cutting off output during short circuit and overload to prevent secondary damage to the rear-end control board and drive board
Industrial reinforced PCB and flame-retardant components, resistant to vibration, resistant to electromagnetic interference in the cabinet, supporting 24-hour uninterrupted full-load operation
Built-in power supply normal status indicator light, intuitive and visible fault shutdown, facilitating on-site troubleshooting
Standardized wiring terminal layout, simple disassembly and replacement steps, convenient after-sales maintenance
Compact board card size, occupying less cabinet space, compatible with Ryan’s original power cabinet structure
Application Fields
RELIANCE VZ7000 series high-voltage high-power frequency converter
7000 series high-power direct current four-quadrant speed control transmission equipment
Heavy-duty transmission units for metallurgical rolling mills, mine elevators, large water pumps and fans
Large-power feedback-type transmission in factories, industrial inverter rectifier power control cabinet
Similar Series Models
45C990: Small power 80W basic power supply board
45C991: 100W medium-power power supply board
45C993: 150W high-power enhanced power supply board
45C995: Upgraded wide-temperature low-temperature compatible power supply board
Matching driver board: WR-D4005, WR-D4007, WR-D4008
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