0-51814-1
May 21, 2026

0-51814-1

Manufacturer: Reliance Electric Part Number: 0-51814-1 Product Name: Voltage Converter Board Application: MaxPak, MaxPak Plus, FlexPak 3000, GV3000 series DC drives Function: Convert high main circuit voltage into isolated low standard control signal, provide accurate voltage feedback for drive regulation loop, signal conditioning and level matching Status: Obsolete discontinued spare part Warranty: 12 months for refurbished tested units

Description

General Information

Manufacturer: Reliance Electric
Part Number: 0-51814-1
Product Name: Voltage Converter Board
Application: MaxPak, MaxPak Plus, FlexPak 3000, GV3000 series DC drives
Function: Convert high main circuit voltage into isolated low standard control signal, provide accurate voltage feedback for drive regulation loop, signal conditioning and level matching
Status: Obsolete discontinued spare part
Warranty: 12 months for refurbished tested units

Electrical Specifications

Power Supply: +5VDC, ±15VDC from drive backplane
Max Input Voltage: DC 600V, AC 480V standard range
Standard Output Signal: 0-10VDC isolated feedback signal
Dielectric Isolation Voltage: 1000VDC between high voltage side and control side
Full Scale Accuracy: ±0.5%
Adjustment Mode: Onboard potentiometer for gain and offset calibration
Built-in Protection: Surge suppression, over voltage limiting, ESD protection

Physical Characteristics

Installation Type: Standard rack plug-in card
Overall Size: 220mm × 150mm
Connection Mode: Edge golden finger connector for backplane, screw terminals for field wiring
Board Treatment: Industrial PCB with conformal coating for moisture and dust proof

Environmental Parameters

Operating Temperature: 0℃ ~ +60℃
Storage Temperature: -20℃ ~ +70℃
Relative Humidity: 5%~95% RH, non-condensing
Application Environment: Industrial control cabinet indoor use

Compatibility

Matching Control Board: 0-51772-3R, 0-51805-5, 0-51811 series test board
Main Usage: DC bus voltage sampling, armature voltage feedback, field voltage detection
Interchangeable: Compatible with same series revision boards for direct replacement

Installation Instructions

  1. Cut off all drive power before installation and replacement

  2. Insert the board into correct rack slot and fix firmly

  3. Connect high voltage sampling wire and low voltage signal wire strictly in accordance with marks

  4. Confirm power supply voltage is normal before power on test

  5. Calibrate feedback signal via onboard potentiometer to reach standard value


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