Description

ABB ASFC-01C Switch Fuse Controller

🔌 Section 1: Wiring Connections

1. Power Supply Terminal (X5 / X7 / X8)

X5:
  - Pin 1 (L): AC 230V Live
  - Pin 2 (N): AC 230V Neutral
  - Pin 3 (PE): Protective Earth
  - Pin 4 (LSOL): Solenoid Coil Control Line L
  - Pin 5 (NSOL): Solenoid Coil Control Line N

X7 (Optional):
  - 230V AC Input

X8 (Optional):
  - 115V AC Input

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2. Auxiliary Output (X4)

- Pin 1: +15V DC (Output to external sensors or logic)
- Pin 2: AUX2 (Spare auxiliary output)
- Pins 3 & 4: GND

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3. Charging Current Monitoring Inputs (X1/X2/X3)

These inputs monitor inverter DC bus charging current via external current sensors:

- X1: IR1+ / IR1− → Inverter 1
- X2: IR2+ / IR2− → Inverter 2
- X3: IR3+ / IR3− → Inverter 3

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4. Control Signals (S1 to S3)

Each group handles one inverter:

- DIS: Disable command (input from PLC)
- EN: Enable command (input from PLC)
- UDC: DC bus voltage detect (optional)
- STAT: Status output (feedback to PLC or HMI)

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⚙️ Section 2: Control Logic

1. Startup & Power Management
   • 230V AC powers the ASFC-01C.
   • LSOL/NSOL are used to control external solenoids or contactors.
   • Charging current from each inverter is monitored; presence of current implies fuse is intact.
2. Enable/Disable Logic
   • EN = HIGH, DIS = LOW → Inverter enabled.
   • EN = LOW or DIS = HIGH → Inverter disabled.
   • UDC input helps confirm DC bus voltage availability.
3. Monitoring & Protection
   • If charging current (IR+) is not detected, fuse may be blown → ASFC disables power.
   • STAT signal provides real-time status feedback to PLC for alarms or logic handling.

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📊 Section 3: Ratings

Parameter	Value
Supply Voltage	230V AC, 50/60 Hz, 40 mA / 115V AC, 80 mA
Solenoid Control Output	115/230V AC, Max 2A / 3.5s
Excitation Voltage Output	15V DC, Max 10 mA
Charging Current Input	Max 16A DC (per channel)
Operating Temperature	Up to +70°C

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🖼️ Section 4: Wiring Diagram

This schematic shows the ASFC-01C controlling three inverters (INV1 to INV3), receiving control signals from a PLC, and monitoring current for fuse status.

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✅ Application Scenarios

• Multi-inverter control and fuse safety management
• Motor control centers
• ABB DCS800 / ACS800 / ACS880 inverter systems
• Automation panels requiring fuse diagnostics and safe control

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