1. Model Definition

• 0-57412: Base part number for DC drive field regulator module

• -1: Revision 1, original hardware version without conformal coating

2. Basic Specifications

• Function: Closed-loop regulation of DC motor field voltage and current

• Calibration: 4 selectable current levels for different field winding ratings

• Power Supply: 5 V DC from backplane, field power supplied by external unit

• PWM Output Frequency: Up to 50 kHz

• Operating Temperature: 0 °C to +60 °C

• Storage Temperature: −40 °C to +85 °C

• Dimensions (W×H×D): 32 × 298 × 187 mm

• Weight: Approximately 0.71 kg

• Conformal Coating: None

• Related Manual: J-3610

3. Interfaces & Communication

• P6 (9-pin D-Sub): Isolated armature voltage monitoring port

• P5 (9-pin D-Sub): Connection to external field power module

• P4 (25-pin D-Sub): PWM signal output to field winding

• Backplane: AutoMax DCS 5000 system bus communication

• Status LEDs: Power, OK, Fault, Field Drive Active

4. Key Functions

• Maintains constant field current to stabilize DC motor torque and speed

• Adopts high-frequency PWM technology for efficient field excitation

• Isolated armature voltage feedback ensures high regulation accuracy under variable loads

• Four current ranges support matching with various DC motors

• Built-in fault detection for field overcurrent, open circuit and power failure

• Original circuit design for early generation AutoMax racks

5. Applications

• DC motor field control for AutoMax DCS 5000 systems

• Heavy-duty industrial equipment including rolling mills, extruders and paper machines

• Direct replacement of original 0-57412-1 modules for legacy equipment repair

• Stable field excitation control for traditional DC drive systems