Part Number Definition

• 0-57407-4J

  • 0-57407: Base part number (AutoMax system CPU card)

  • 4: 4th‑generation hardware (Motorola 68000 CPU)

  • J: Enhanced high‑reliability, conformal coated, extreme extended temp

• Full name: Extreme High‑Reliability Processor Module for AutoMax / DCS 5000

• Compatibility: Direct drop‑in replacement for 0-57407-1/2/3/3E/4/4D/4F/4H; works with 57C493 power supply.

Technical Specifications (Official)

• Manufacturer: Reliance Electric (now Rockwell Automation, previously ABB/Baldor)

• Processor: Motorola 68000 16/32‑bit CPU with hardware watchdog

• Program memory: 1 MB EPROM / 512 KB RAM

• Data memory: 512 KB battery‑backed RAM

• System bus: AutoMax backplane high‑speed bus

• Communication ports:

  • PROGRAMMER: 25‑pin parallel port (programming/download)

  • LOCAL COMM: 25‑pin parallel port (host/HMI)

• Operating temperature: ‑20°C to +70°C (widest in 57407 series)

• Isolation: 2500 VAC optical isolation

• Dimensions: 342 × 190 × 30 mm (standard 1.25" slot)

• Weight: Approx. 1.0 kg (2.2 lbs)

• Power consumption: ≤24 W

• Protection: IP20; PCB conformal coating (moisture/dust/corrosion resistance)

• Reliability screening: 100% burn‑in, temperature cycling, vibration test, HASS (Highly Accelerated Stress Screening) – J = Extreme high‑reliability

Front Panel Interface & Indicators

• 2‑digit LED display: Fault code (00 = normal)

• OK (green): CPU running normally

• FAULT (red): Hardware/program/communication fault

• 2 × 25‑pin parallel ports: Upper = PROGRAMMER, Lower = LOCAL COMM

• Top/bottom latches: Hot‑swap capable

Key Features

1. System Master CPU: Core of AutoMax/DCS 5000; executes ladder logic, BASIC, and control block programs.

2. Extreme High‑Reliability Build: 100% component burn‑in + HASS + environmental screening; ideal for 24/7 mission‑critical operation.

3. Ultra‑Extended Temperature: ‑20°C to +70°C (vs. ‑10°C for 4H); suitable for harsh industrial environments.

4. Enhanced Stability: Conformal coating + industrial‑grade components; superior vibration, shock, and EMC performance.

5. Redundancy & Hot Swap: Dual‑CPU redundancy; rack‑level live insertion/removal without downtime.

Revision Comparison (0-57407 Series)

• 0-57407-1: 0–50°C, initial release, basic features

• 0-57407-2: 0–55°C, improved cooling

• 0-57407-3E: 0–60°C, wide temp + EMC enhanced, mainstream stable

• 0-57407-4D: 0–60°C, coated, industrial grade, high stability

• 0-57407-4F: 0–60°C, coated, 68000 CPU, standard industrial

• 0-57407-4H: ‑10°C to +60°C, coated, high‑reliability screening

• 0-57407-4J: ‑20°C to +70°C, coated, HASS, extreme high‑reliability (top‑tier)

Typical Applications

• System: Reliance AutoMax / DCS 5000

• Industries: Metallurgy, pulp & paper, water treatment, power, heavy machinery, mining, offshore, military (extreme cold/heat, humidity, dust, vibration)

• Uses: Plant‑wide automation, multi‑motor synchronization, drive cluster control, high‑precision motion, redundant/mission‑critical systems in extreme environments.

Installation & Maintenance

Installation

• Insert into CPU slot with power off; tighten latches; connect programming/communication cables.

• Power on: OK LED on, display “00” = normal; auto‑detects I/O and drive cards.

Maintenance

• Quarterly: Check LEDs, connectors, latch tightness.

• Biannually: Power off, ESD‑safe cleaning of panel and slots (coating reduces need).

• Replacement: 4J directly replaces all earlier 57407 revisions; no program/wiring changes required.