1. Model Definition

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

• Common Revisions: 0-57412-E (most common), 0-57412-D, etc.

2. Basic Specifications

• Function: Precision regulation of DC motor field voltage/current

• Calibration: 4 selectable current calibration levels

• Power Supply: Backplane 5 V DC; field power from external module

• Output Frequency: Up to 50 kHz (pulse-width modulation)

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

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

• Dimensions (W×H×D): ~32 × 298 × 187 mm (1.25" × 11.75" × 7.375")

• Weight: ~0.71 kg (1.57 lbs)

• Coating: Conformal coated (most revisions)

• Manual: J‑36XX (AutoMax Field Regulator)

3. Interfaces & Communication

• Isolated Armature Volts (9‑pin D‑sub): Monitors armature voltage for regulation

• Field Power Module (9‑pin D‑sub): Connects to external field power supply

• Field Gate Connector (25‑pin D‑sub): PWM drive signals to field winding

• Backplane: AutoMax DCS 5000 bus communication

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

4. Key Functions

• Closed‑Loop Field Control: Maintains constant field current for stable DC motor torque/speed

• PWM Regulation: High‑frequency pulse‑width modulation for efficient field excitation

• Armature Voltage Feedback: Isolated sensing for accurate regulation under varying load

• Multi‑Level Calibration: 4 current ranges for different motor field ratings

• Fault Monitoring: Detects field overcurrent, open circuit, or power supply failure

5. Applications

• DC motor field control in AutoMax DCS 5000 systems

• Rolling mills, extruders, paper machines, and heavy‑duty process lines

• Retrofit/replacement for existing 0-57412‑D / E modules

• High‑precision speed regulation for large DC drives

• Industrial environments requiring stable, efficient field excitation