Model Definition

0-57C406-E: Full part number

Leading 0: Factory‑original, unmodified unit

57C406: Base model (UDC/power supply module)

E: Extended temperature (‑20°C to +70°C) + conformal coating + enhanced EMC

57C406: Core model (standard UDC/power supply)

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

Technical Specifications

General

Brand: RELIANCE (Reliance Electric / Baldor Reliance)

Type: Universal Drive Controller (UDC) + Backplane Power Supply Module

Form Factor: 1‑slot AutoMax rack‑mount

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

Weight: ~1.3 kg (2.9 lbs)

Operating Temperature: ‑20°C to +70°C (‑E extended range)

Storage Temperature: ‑40°C to +85°C

Humidity: 5%–95% non‑condensing

Isolation: 1500 Vrms input‑to‑backplane

Certifications: CE, RoHS, UL listed

Power Supply Ratings

Input Voltage: 120/240 VAC (selectable), 47–63 Hz

Input Current: 3.0 A @ 120 VAC, 1.5 A @ 240 VAC

Output (Backplane): +5 VDC @ 10 A, +15 VDC @ 3 A, ‑15 VDC @ 3 A

Regulation: ±0.5% (full load)

Ripple: <50 mVpp (enhanced filtering, ‑E)

Control & I/O

Processor: 16‑bit UDC controller, 5 MHz clock

Drive Compatibility: AutoMax SD3000/SF3000/SA3000 series drives

I/O Points: 8 digital inputs, 8 digital outputs (onboard)

Communication: Dual‑port RAM (DPR) for processor/drive data exchange

Protection: Overcurrent, overvoltage, overtemperature, short‑circuit

Electrical

Backplane Load: Supplies power to up to 8 I/O modules

Fuses: 4 A (input), 2 A (+5 V), 1 A (±15 V) onboard

Interface & Communication Configuration

Physical Interfaces

Front Panel: AC input terminal block; LED indicators; drive control port (DB9)

Backplane: AutoMax proprietary edge connector (power + Multibus + DPR)

LED Indicators:

PWR: AC input OK (green)

5V: Backplane +5 VDC OK (green)

±15V: Backplane ±15 VDC OK (green)

RUN: UDC active (steady = run, flash = init)

FLT: Fault (red = overcurrent/overtemp/overvoltage)

Communication

Bus Protocol: AutoMax Multibus (parallel, 2 Mbps)

Drive Link: RS‑232/RS‑485 (DB9, 19.2 kbps)

Compatibility: AutoMax 57C331/332/334 chassis; all AutoMax processors

Data Format: 16‑bit DPR registers (control, status, setpoints)

Core Functions

Backplane Power Generation: Supplies regulated +5 V/±15 VDC to AutoMax rack I/O and processors.

Universal Drive Control (UDC): Executes motion control algorithms for AC/DC/servo drives.

Enhanced EMC Filtering (‑E): Reduces noise from VFDs/motors; ensures data integrity.

Extended Temperature & Conformal Coating (‑E): Operates reliably in cold/hot, humid, dusty environments.

Integrated I/O: 8DI/8DO for local sensor/actuator control.

Fault Detection & Protection: Monitors overcurrent/overvoltage/overtemperature; triggers FLT alarm and safe shutdown.

Dual‑Port RAM (DPR): High‑speed data exchange between processor and drives.

Application Scenarios

Legacy AutoMax Retrofits: Direct replacement for 57C406 / 0‑57C406‑E in DCS 5000 systems.

Motion Control: Precision control of conveyors, cranes, machine tools, and industrial robots.

Process Control: Power and control hub for water treatment, packaging, material handling.

Harsh Environments: Outdoor, cold‑storage, high‑humidity, or vibration‑intensive sites (‑E variant).

Mixed Rack Systems: Compatible with existing Reliance I/O and drive modules in the same rack.

Usage & Maintenance Instructions

Installation

Power Off: De‑energize the AutoMax rack and AC input before insertion.

Insert Module: Align with slot, push firmly until backplane connector seats.

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

Wiring: Connect 120/240 VAC to input terminals; select voltage via jumper; connect drive to DB9 port.

Operation

Power‑On: PWR ON; 5V/±15V ON; RUN flashes (~5 s) during self‑test.

Normal: RUN steady; all power LEDs green.

Fault: FLT red → check AC input, wiring, load, or ventilation; replace fuses if needed.