Part Number Definition

• 0-57407-4F

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

  • 4: 4th-generation hardware

  • F: Industrial grade, conformal coated, standard reliability

• Full name: Processor Module for AutoMax / DCS 5000

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

Technical Specifications (Official)

• Manufacturer: Reliance Electric (now Rockwell Automation)

• 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: 0°C to +60°C

• Isolation: 2500 VAC optical isolation

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

• Weight: Approx. 1.0 kg

• Power consumption: ≤24 W

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

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. Enhanced Performance: Motorola 68000 CPU provides faster instruction execution than earlier 80286-based revisions.

3. 4F Revision Enhancements: Conformal coating, industrial temp range, standard component screening—ideal for general industrial environments.

4. 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: 0–60°C, coated + high-reliability screening, top-tier

Typical Applications

• System: Reliance AutoMax / DCS 5000

• Industries: Metallurgy, paper, water treatment, power, heavy machinery (high temp, humidity, dust, vibration)

• Uses: Plant-wide automation, multi-motor synchronization, drive cluster control, high-precision motion, redundant control systems.

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: 4F directly replaces 1/2/3/3E/4/4D/4H; no program/wiring changes required.