Product Introduction

Model Interpretation

• 3AXD50000000753: ABB commercial part number.

• AFPS-61C: Official type designation (Fan Power Supply Board).

• Applicable Series: ABB ACS800 series industrial inverters.

Technical Parameters

• Input Voltage: 100–240 V AC, 50/60 Hz.

• Output Voltage: 24 V DC (regulated).

• Output Current: Up to 3 A (for cooling fans and auxiliary circuits).

• Power Rating: 72 W.

• Isolation: Input-output isolation for safety.

• Protection: Overvoltage, overcurrent, short-circuit, overtemperature.

• Operating Temperature: 0 °C to +55 °C.

• Storage Temperature: −40 °C to +70 °C.

• Dimensions: Standard PCB size for ACS800 cabinet mounting.

• Weight: Approximately 0.8 kg.

• Origin: Sweden.

Interface and Connection

• Power Input: AC terminal block (100–240 V AC).

• DC Output: 24 V DC screw terminals for fans and control circuits.

• Signal Connections: Auxiliary contacts for fault monitoring.

• Mounting: Installed inside ACS800 inverter cabinet, connected to backplane.

Core Functions

• Fan Power Supply: Converts AC input to regulated 24 V DC for inverter cooling fans, maintaining optimal operating temperature.

• Auxiliary Power: Provides stable 24 V DC for internal control logic and sensors.

• Fault Protection: Shuts down or limits current during overload, short circuit, or overheating to protect the inverter.

• Status Monitoring: Supports remote alarm signaling for maintenance diagnostics.

Application Scenarios

• ABB ACS800 Inverters: Mainly used in medium-voltage and high-power ACS800 drives for fan and auxiliary power.

• Industrial Drives: Widely applied in power, oil and gas, chemical, metallurgy, and water treatment industries.

• Critical Cooling Systems: Ensures continuous operation of cooling fans in high-power inverters to prevent overheating.

Operation and Maintenance

• Installation: Mount vertically in the inverter cabinet; ensure adequate ventilation.

• Wiring: Use insulated copper cables; verify AC input range and DC output polarity.

• Routine Check: Inspect for loose connections, dust accumulation, and abnormal noise.

• Replacement: Disconnect power before replacement; use ESD protection to avoid static damage.

• Troubleshooting: Check LED indicators (if available) and alarm signals for fault diagnosis.