Model Definition

• 0-54390: Base part number (PC Power Supply Board)

• Status: Discontinued by manufacturer; no direct OEM replacement

• Cross-Reference: No fully compatible equivalent; replacement requires exact part match or system reconfiguration

Technical Specifications

• Form Factor: Standard 3U PCB (approx. 248 × 171 mm)

• Weight: ~0.6 kg

• Input Voltage: 115/230 VAC, 50/60 Hz

• Output Voltages: ±15 VDC (1 A), +5 VDC (3 A), +24 VDC (2 A)

• Regulation: ±0.5% for all outputs

• Protection: Overvoltage, overcurrent, short-circuit protection

• Components: Switching regulator, transformers, capacitors, fuses, status LEDs

• Operating Temp: 0 °C to +55 °C

• Mounting: 3U rack slot, edge connector (AutoMax/MaxPak backplane)

Interfaces & Communication

• Backplane: 3U goldfinger edge connector (fits AutoMax/MaxPak rack)

• AC Input: Screw terminals for 115/230 VAC power

• DC Outputs: Hardwired to backplane for system distribution

• No Network Ports: Hardwired power supply; no serial/Ethernet communication

Key Features

1. Multi-Voltage Output: Provides ±15 VDC, +5 VDC, and +24 VDC for drive logic and I/O

2. Overload Protection: Built-in fuses and electronic protection against short circuits

3. LED Status Indicators: On-board LEDs for AC power, DC output, and fault status

4. High Efficiency: Switching regulator design reduces heat generation

5. 3U Rack Mount: Seamless integration into existing AutoMax/MaxPak drive cabinets

Application

• Drive Systems: AutoMax DC Drives, MaxPak Series DC Drives (50–2000 HP)

• Subassemblies: Control racks, logic cabinets, auxiliary control panels

• Industries: Steel, paper, mining, cranes, conveyors, machine tools

• Function: Primary power supply for control and interface circuitry in DC drive systems

Compatibility

• Compatible Racks: AutoMax DCS Rack, MaxPak Drive Rack

• Voltage Compatibility: 230/460/575 VAC DC drives

• Power Range: 50–2000 HP (matches AutoMax/MaxPak drive ratings)

Critical Notes

• Function Distinction: Separate from 0-54374 (relay board), 0-54379-1 (auxiliary “M” kit); this is the main system power supply

• Replacement Challenge: No direct substitute; refurbished units are the most common solution

• Availability: Limited stock; longer lead times; pricing varies by condition and supplier