Model Definition

• 0-57C407-4H: Full part number

  • Leading 0: Factory-original, unmodified unit

  • 57C407: Base model (DCS 5000 processor module)

  • 4H: Extended temperature (-20°C to +70°C) + conformal coating + high vibration immunity + enhanced EMC

• Series: AutoMax 57C Series (Reliance PLC/DCS) / DCS 5000 Series

• Variant: High-reliability, harsh-environment processor for critical motion/process systems

Technical Specifications

General

• Brand: RELIANCE (Reliance Electric / Baldor Reliance)

• Type: DCS 5000 System Processor / Network Controller (High-Temp/Conformal Coated)

• Form Factor: 1-slot AutoMax rack-mount (slots 0–4 only)

• Dimensions: 11.75 in (H) × 3.5 in (W) × 1.2 in (D) approx

• Weight: ~1.2 kg (2.6 lbs)

• Operating Temperature: ‑20°C to +70°C (4H extended range, vs 0°C to +60°C standard)

• Storage Temperature: ‑40°C to +85°C

• Humidity: 5%–95% non-condensing (coating protected)

• Vibration: 5–200 Hz, 0.15 mm displacement (4H enhanced)

• Isolation: 1500 Vrms processor-to-backplane

• Certifications: CE, RoHS, UL listed, ATEX-compliant (coating)

Processor & Memory

• CPU: 16-bit DCS 5000 processor, 8 MHz clock

• RAM: 128 KB (user program + data)

• ROM: 64 KB (firmware/OS)

• Backup: Lithium battery (≥5 years retention; 4H uses industrial-grade battery)

• Scan Time: 1 ms typical (1K logic instructions)

• Coating: Conformal acrylic coating (4H) for moisture/dust/corrosion resistance

Communication

• Network Protocol: DCS-Net (proprietary, 1 Mbps)

• Serial Ports: 2 × RS-232 (Programmer + Local Comm, 19.2 kbps; 4H has surge protection)

• Backplane: AutoMax Multibus (2 Mbps)

• Node Capacity: Up to 32 nodes per DCS-Net network

• Compatibility: DCS 5000 racks (57C331/332/334); AutoMax I/O modules

Electrical

• Backplane Power: +5 VDC ±5% (from rack power supply)

• Current Draw: 1.0 A (typical), 1.5 A (max)

• Protection: Overvoltage, overcurrent, ESD, transient suppression (4H enhanced)

Interface & Communication Configuration

Physical Interfaces

• Front Panel:

  • 2 × 7-segment LED fault indicators (1st/2nd)

  • Green OK LED (steady = run, flash = fault)

  • 2 × RS-232 DB9 ports (Programmer / Local Comm, 4H with ESD/surge protection)

• Backplane: AutoMax proprietary edge connector (power + Multibus + DCS-Net)

LED Indicators

• OK: Green (steady = normal operation; flashing = fault/init)

• 1st/2nd: 7-segment red LEDs (fault code display; 4H has high-temperature fault codes)

Core Functions

1. Harsh-Environment DCS Control: Executes user logic in extreme temps (-20°C to +70°C), high humidity, or dusty sites.

2. Conformal Coating Protection: Acrylic coating prevents corrosion, moisture, and dust damage.

3. Extended Temperature Operation: Maintains full performance in cold storage, outdoor, or high-heat industrial areas.

4. DCS-Net Network Management: Manages 1 Mbps proprietary network; connects up to 32 nodes.

5. Serial Communication: 2 × RS-232 ports (4H with surge protection) for programming/HMI.

6. Fault Diagnosis: 7-segment LEDs display extended fault codes (including high-temp alerts).

7. Battery-Backed Memory: Industrial-grade lithium battery preserves program/data ≥5 years.

Application Scenarios

• Legacy DCS 5000 Retrofits: Direct replacement for standard 57C407 in harsh environments.

• Cold Storage/Refrigeration: Food processing, pharmaceutical, or logistics systems (-20°C operation).

• Outdoor/Remote Sites: Oil/gas, water treatment, or renewable energy (high temp/vibration).

• Heavy Industry: Steel, metal processing, or cement plants (dust/high heat).

• Motion Control in Extreme Conditions: Conveyors, cranes, or machine tools in non-climate-controlled areas.

Usage & Maintenance Instructions

Installation

1. Power Off: De-energize the DCS 5000 rack before insertion.

2. Insert Module: Align with slots 0–4 only; push firmly until backplane connector seats.

3. Secure: Tighten captive screws (torque 0.8–1.0 N·m).

4. Wiring: Connect RS-232 devices to front-panel DB9 ports; use shielded cable for noise immunity.

Operation

• Power-On: OK LED flashes (~5 s) during self-test; 7-segment LEDs show init codes.

• Normal: OK steady green; no fault codes displayed.

• Fault: OK flashes red; 7-segment LEDs show fault code → check temperature, wiring, or battery.