1. General Information

• Manufacturer: Reliance Electric (Rockwell Automation / Baldor‑Reliance)

• Part Number: 0‑51383‑2 (0513832)

• Product Type: Auxiliary Power Supply Board, ImPak Plus Series

• Application: Reliance ImPak Plus DC Variable‑Speed Drives

• Function: Generates regulated control voltages (+5 V, ±12 V, 24 V) for drive logic, regulator cards (0‑51381 series), and interface circuits; includes small transformer, rectifiers, filters, and protection components

• Status: Obsolete (legacy replacement/repair part)

• Warranty: 12 months (new/reconditioned)

• Similar Models: 0‑51383‑1, 0‑51383‑3 (ImPak Plus power supply variants)

2. Electrical Specifications

• Input Voltage: 115/230 VAC (selectable), 50/60 Hz (from drive main transformer)

• Output Voltages:

  • +5 VDC @ 2 A (logic power)

  • ±12 VDC @ 0.5 A (analog circuits)

  • 24 VDC @ 1 A (digital I/O, interlocks)

• Regulation: ±1% (full load)

• Ripple: <50 mV p‑p

• Protection: Overvoltage, overcurrent, short‑circuit (auto‑reset)

• Isolation: Input‑to‑output ≥ 1500 VAC

3. Physical & Mechanical

• Dimensions (W×H×D): ~254 × 178 × 25 mm (10.0” × 7.0” × 1.0”)

• Weight: ~0.57 kg (1.25 lbs)

• Construction: Glass‑epoxy PCB, conformal coated, gold‑plated edge connectors

• Mounting: Plug‑in into ImPak Plus drive card cage (vertical slot)

• Key Components: Small power transformer, bridge rectifiers, electrolytic capacitors, voltage regulators, fuses

4. Environmental Ratings

• Operating Temperature: 0°C to +50°C (32°F to 122°F)

• Storage Temperature: -20°C to +70°C (-4°F to 158°F)

• Humidity: 5%–95% RH (non‑condensing)

• Vibration: 0.15 mm p‑p @ 10–100 Hz

5. Key Features

1. Multi‑Voltage Output: Supplies all critical control voltages for ImPak Plus drives

2. Compact Design: Integrated transformer and regulation in a single plug‑in board

3. Robust Protection: Fused inputs and active overvoltage/overcurrent protection

4. Stable Regulation: Low ripple and tight voltage tolerance for reliable drive operation

5. Direct Replacement: Pin‑compatible with other 0‑51383 series power boards

6. Compatibility

• DC Drives: ImPak Plus (all ratings)

• Associated Boards:

  • Regulator: 0‑51381‑11/‑12/‑13/‑16

  • Gate Drive: 0‑51378‑1/‑2/‑19/‑25

  • Interface: 0‑51382 series

• Replacement: Direct swap with 0‑51383‑1/‑3 (no wiring changes)

7. Installation & Maintenance

Installation

1. Disconnect all drive power (main and control).

2. Align board with card cage guides; insert firmly into edge connector.

3. Secure with mounting hardware (if provided).

4. Verify input voltage selector (115/230 VAC) matches site supply.

Maintenance

• Cleaning: Use dry, lint‑free cloth; avoid liquid cleaners.

• Inspection: Quarterly check for bulging capacitors, burnt components, or loose connections.

• Handling: Hold by edges; avoid touching connector pins or exposed circuitry.

8. Troubleshooting

• No Output Voltages: Check input AC supply; verify board fuses; inspect transformer windings.

• Unstable/Noisy Output: Replace electrolytic capacitors; check for loose connections; verify load current is within ratings.

• Overvoltage Trips: Check regulator components; verify input voltage selector setting.

• Short‑Circuit Faults: Inspect output wiring for shorts; test connected boards (regulator/interface) for damage.