Product Introduction

Model Interpretation

• 3AXD50000038423: Official ABB part number for order and inventory management.

• AFIN‑02C: Product model, representing an advanced motor interface board with insulation monitoring capability.

• The suffix “C” indicates a revised version, optimized for compatibility with modern ABB drive platforms.

Technical Parameters

• Operating Voltage: 24 V DC ±15%

• Test Voltage: 500 V DC (for insulation measurement)

• Measurement Range: 0.1 MΩ to 1000 MΩ

• Accuracy: ±5% of reading

• Operating Temperature: −25 °C to +70 °C

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

• Protection Class: IP20

• Dimensions: 142 mm × 100 mm × 38 mm

• Weight: 0.15 kg

• Origin: Sweden

Interface and Communication Configuration

• Power Interface: 24 V DC screw terminals for stable power supply.

• Measurement Interface: Dedicated high‑voltage terminals for connecting motor windings and cables.

• Signal Output: Relay contacts for alarm and fault signaling.

• Communication: RS‑485 interface for data exchange and remote monitoring.

• Status Indicators: Multi‑color LEDs display power, measurement, and fault status in real time.

Core Functions

• Insulation Resistance Monitoring: Continuously measures phase‑to‑ground insulation resistance of motor windings and cables.

• Early Warning: Triggers an alarm when resistance drops below a user‑configurable threshold.

• Fault Protection: Sends interlock signals to shut down the drive in the event of severe insulation failure, preventing electric shock and equipment damage.

• Offline Testing: Supports 500 V DC offline insulation tests for periodic maintenance.

• Signal Conditioning: Processes motor‑side signals and transmits control commands between the drive and motor.

Application Scenarios

• Compatible Drives: ABB ACS580, ACS880, and ACQ580 series low‑voltage AC drives.

• Industries: Water and wastewater treatment, oil and gas, chemical, mining, food and beverage, and general manufacturing.

• Equipment: Pumps, fans, compressors, conveyors, and other critical motor‑driven machinery requiring high reliability.

Operation and Maintenance Instructions

• Installation: Mount on a DIN rail or panel inside the control cabinet. Use shielded cables and separate high‑voltage measurement wires from control cables to avoid interference.

• Routine Check: Regularly inspect LED status and terminal tightness. Clean dust with a dry cloth.

• Calibration: Perform professional calibration annually to ensure measurement accuracy.

• Replacement: Supports hot swapping; replace directly without shutting down the system.

• Safety: Disconnect all power before disassembly to ensure personal and equipment safety.