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ABB SDCS-FIS-3A Power Supply & Interface Module  

1. Key Parameters

• Product Model: SDCS-FIS-3A
• Order Code Reference: Typically paired with medium-power ACS880 VFD kits (e.g., ACS880-04-310A-7, 3ABD00013068) for procurement consistency
• Product Series: ABB ACS880 VFD Medium-Power Power Supply & Signal Interface Modules
• Core Function: Converts ACS880 DC bus power to regulated low-voltage DC; provides isolated signal interfaces for sensors/encoders; enables safety circuit monitoring; protects control components from electrical faults
• Electrical Input Specifications:
  • Input Source: ACS880 VFD DC bus (450V DC ~ 650V DC; compatible with standard 3-phase rectifier output)
  • Input Current: 1.2A (max at 450V DC); 0.8A (max at 650V DC)
  • Input Protection: Passive surge suppression (IEC 61000-4-5: ±2kV contact discharge); overvoltage clamping at 700V DC
• DC Power Outputs:

  Output Channel	Voltage Rating	Continuous Current	Peak Current (10s)	Target VFD Components
  +5V DC	5V ±1%	2.5A	3.5A	VFD control board (SDCS-CON-2) CPU/memory
  +24V DC	24V ±2%	1.8A	2.5A	Digital I/O circuits, safety interlocks
  ±15V DC	±15V ±2%	0.6A (each polarity)	0.8A (each polarity)	Analog signal conditioning, encoder interfaces

  
  
  • Output Ripple & Noise: ≤25mVpp (for +5V/+24V); ≤40mVpp (for ±15V)
  • Output Protection: Electronic current limiting; short-circuit shutdown (<5ms response time)
• Isolated Signal Interfaces:

  Interface Type	Number of Channels	Signal Type	Isolation Level	Key Function
  Temperature Inputs	4	PT100 (0℃~150℃) / NTC (25℃~125℃)	2.5kVrms	Monitors motor winding/IGBT temperatures
  Encoder Inputs	1	Differential incremental (A/B/Z)	2.5kVrms	Receives motor speed/position feedback
  Safety Circuit Input	2	24V DC (dry contact)	2.5kVrms	Monitors emergency stop (E-stop)/safe torque off (STO)

• Electrical Safety Features:
  • Isolation: 2.5kVrms (between DC bus input and all outputs/interfaces); 1kVrms (between signal channels)
  • EMC Immunity: Compliant with IEC 61000-6-2 (industrial environment); conducted noise immunity ≥60dB
• Mechanical Specifications:
  • Form Factor: Reinforced PCB with edge connectors; compatible with ACS880 VFD control compartment
  • Dimensions (W×H×D): 160mm × 190mm × 28mm (custom fit for medium-power ACS880 chassis)
  • Mounting: Slot-mounted (secures to ACS880 backplane; no additional screws)
  • Weight: Approximately 380g
  • LED Indicators (board edge):
    • Power (PWR): Green (module powered on); Red (input power fault)
    • Output Status (+5V/+24V/±15V): Green (normal); Red (overcurrent/short-circuit)
    • Signal Status (TEMP/ENC): Green (signal valid); Red (signal loss/fault)
    • Safety (SAFE): Green (safety circuits closed); Red (E-stop/STO triggered)
• Environmental Ratings:
  • Operating Temperature Range: -10℃~+60℃ (14℉~140℉; matches ACS880 VFD range)
  • Storage Temperature Range: -40℃~+85℃ (-40℉~185℉; no component degradation)
  • Humidity Tolerance: ≤95% RH (non-condensing, 40℃; suitable for damp settings)
  • Vibration Resistance: 10~500Hz, 1.5g acceleration (IEC 60068-2-6)
  • Shock Resistance: 20g acceleration (11ms duration, IEC 60068-2-27)
• Compliance Standards: IEC 61800-5-1 (adjustable speed drives), EN 61000-6-2 (EMC), UL 508C (industrial safety), CE, RoHS

2. Key Features

• ACS880 VFD Exclusivity: Custom-engineered for medium-power ABB ACS880 VFDs (50kW~150kW)—ensures perfect electrical matching with the VFD’s DC bus (450V~650V) and control components (e.g., SDCS-CON-2, PT100 sensors); eliminates compatibility risks from generic modules (e.g., voltage mismatches, signal interference).
• Dual-Function Design: Combines power supply and signal interface in one module—replaces separate power modules (e.g., SDCS-PIN-205A) and isolation modules, reducing ACS880 internal wiring, failure points, and control compartment space usage.
• Ultra-Low Output Ripple (<25mVpp): Minimizes electrical noise on +5V/+24V outputs, protecting sensitive control board CPUs and encoder feedback circuits—critical for stable VFD torque control (e.g., automotive assembly line conveyors) and accurate motor speed regulation.
• 2.5kVrms Isolation: Industrial-grade isolation between high-voltage DC bus, low-voltage outputs, and signal interfaces prevents ground loops and voltage transients (common in factory power grids)—ensures reliable signal transmission for temperature monitoring and safety circuits.
• Integrated Safety Monitoring: Dedicated isolated inputs for E-stop/STO circuits—triggers VFD shutdown within 5ms if safety circuits open, complying with EN ISO 13849-1 (SIL 2) safety standards for machinery protection (e.g., robotic workcells).
• Multi-Sensor Compatibility: Supports PT100/NTC temperature sensors and differential encoders—eliminates the need for external signal converters, simplifying integration with motor winding temperature monitors and speed feedback systems.
• Rugged Industrial Build: Reinforced PCB edges, flame-retardant materials (UL94 V-0), and wide temperature range (-10℃~+60℃) withstand vibration, dust, and temperature swings—suitable for heavy machinery (e.g., construction equipment drives) and process cooling systems.

3. Application Fields

• Medium-Power ACS880 VFD Systems: Primary application—powers control and interfaces for ACS880-driven equipment:
  • Automotive Manufacturing: Supplies power to ACS880 VFD control boards for robotic welding cells and assembly line conveyors; isolated encoder inputs ensure accurate motor speed feedback, while safety inputs monitor E-stops for worker protection.
  • Heavy Machinery: Powers ACS880 VFDs for construction equipment (e.g., excavator hydraulic pumps); PT100 inputs monitor motor winding temperatures, preventing overheating during heavy loads (e.g., digging operations).
  • Process Cooling: Supports ACS880 VFDs for industrial chiller pumps; ±15V outputs power analog pressure sensors (for coolant pressure monitoring), while low ripple ensures stable pump speed control to maintain target temperatures.
• Precision Motor Control: Enables accurate regulation in:
  • Electronics Production: Powers ACS880 VFDs for SMT placement machine motors; isolated encoder inputs reduce noise-induced position errors, ensuring precise placement of 0402 or smaller components on PCBs.
  • Packaging Machinery: Supplies power to ACS880 VFDs for high-speed packaging line conveyors; safety inputs integrate with machine guards, triggering shutdown if guards are opened—complying with food/beverage safety standards (e.g., FDA).
• Harsh-Environment VFD Deployments: Supports reliable operation in:
  • Chemical Processing: Powers ACS880 VFDs for chemical mixer motors; 2.5kVrms isolation resists ground loops from corrosive environments, while wide humidity tolerance (≤95% RH) withstands damp processing areas.
  • Mining Auxiliary Systems: Supplies power to ACS880 VFDs for mine ventilation fan motors; vibration resistance (1.5g) withstands underground conditions, and temperature inputs monitor fan bearing temperatures to prevent premature failure.

The structure and details of the product：

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