Model Definition

Technical Specifications

• Board Type: 18D plug-in PCB with faceplate and edge connector

• Faceplate Controls: 7 rotary potentiometers (Current Limit, Current Gain, Volt off, Accelerate, Decelerate, Stabe, FB Comp); 1 potentiometer for Volt Gain; 1 red LED (F. Min.)

• Components: 19 integrated circuits, metal film/carbon composite resistors, ceramic disk/polyester capacitors, transistors

• Weight: Approx. 0.29 kg

• Status: Discontinued by OEM; NOS / refurbished / used only

Interfaces & Communication

• Edge Connector: Connects to drive rack backplane for power and control signals

• Control I/O: Hardwired analog control signals and adjustment potentiometer interfaces

• Isolation: Basic electrical isolation between user controls and drive power circuits

• No Fieldbus: No digital communication interface; all adjustments via analog dials

Key Features

• User-adjustable drive tuning for current/voltage control and acceleration/deceleration

• Precision potentiometers for stable, repeatable parameter settings

• Built-in LED indicator for fault monitoring (F. Min.)

• Industrial-grade components for long-term reliability in harsh environments

• Facilitates closed-loop stability and protection tuning for DC drives

Application

• Reliance MaxPak / AutoMax series DC drives

• Industrial DC motor control (conveyors, extruders, cranes, rolling mills)

• Legacy drive system maintenance, tuning, and replacement

• Works with 0-52850 (IRFA), 0-52853 (ISCA), 0-52854-2 (VCTC) in the same drive rack