0-51865-9
May 21, 2026

0-51865-9

Manufacturer: Reliance Electric (USA) Form factor: 19” rack-mount plug-in PCB (Cardpack chassis) Status: Obsolete / Discontinued (surplus, used, refurbished only) Front panel: 2 rotary potentiometers (Rate / Gain) for loop tuning Weight: approx. 2.0 lbs (0.9 kg) Condition examples: refurbished ~$1,470–$2,185; new surplus ~$2,913

Description

1. Part Number

0-51865-9 (also: 0518659, 51865-9)

2. Brand

Reliance Electric (Baldor / ABB Group)

3. Type

CLDK (Current Loop Driver Board, Style K) – same family as 0-51865-1/2/3/6/16/21

4. Description

Current Loop Driver Printed Circuit Board
Other names: Current feedback control board, loop gain/response card, CLDK board

5. Basic Info

  • Manufacturer: Reliance Electric (USA)

  • Form factor: 19” rack-mount plug-in PCB (Cardpack chassis)

  • Status: Obsolete / Discontinued (surplus, used, refurbished only)

  • Front panel: 2 rotary potentiometers (Rate / Gain) for loop tuning

  • Weight: approx. 2.0 lbs (0.9 kg)

  • Condition examples: refurbished ~$1,470–$2,185; new surplus ~$2,913

6. Function

Precision current loop control for DC/AC drives:
  • Conditions, amplifies, stabilizes motor current feedback signals

  • Provides closed-loop current regulation and overcurrent protection

  • Adjusts loop gain and response rate for dynamic load stability

7. Specifications

  • Signal I/O: Analog ±5VDC / 0–10VDC (current/voltage feedback)

  • Adjustments: Gain (sensitivity), Rate (response speed)

  • Isolation: 500VDC (I/O isolation)

  • Operating temp: 0°C to +55°C

  • Storage temp: -40°C to +85°C

  • Protection: Overcurrent, short-circuit, EMI filtering

8. Compatible Drives

  • Reliance MaxPak DC drives

  • VS spindle drives

  • GV3000 AC drives

  • Legacy Cardpack systems

9. Applications

CNC machine tools, metallurgical mills, paper/printing, textile machinery, industrial automation lines requiring precision current control.


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