Model Series: PCE9847 Series

Technical Specifications:

• Board Dimensions: 220 mm × 160 mm × 2.5 mm
• Layer Count: 6-layer FR-4 (TG180)
• Microcontroller: 32-bit ARM Cortex-M4 (168 MHz)
• Motor Drive: 3-phase IGBT inverter (0.75 kW max) with sensorless vector control
• Input Voltage: 400V AC / 3-phase / 50 Hz (with integrated PFC stage)
• Water Valve Outputs: 4 × 24V DC solenoid (1A each)
• Heater Output: 9 kW max (via 3-phase SSR)
• Communication: Ethernet 10/100 Base-TX (RJ45) + RS-485
• Display: 128×64 graphic LCD with backlight
• Digital Inputs: 12 optocoupler-isolated inputs (24V DC)
• Digital Outputs: 8 transistor outputs (NPN, 24V DC / 500 mA)
• Operating Temperature: -10°C to +60°C
• Protection Rating: IP54 (conformal coated)
• Firmware Storage: External SPI Flash (16 MB)
• Weight: 350 g

Functional Features:

• Sensorless vector control for brushless DC or AC motor drives — no encoder required
• Ethernet connectivity for remote monitoring, recipe download, and firmware updates
• Up to 100 wash programs stored in flash memory
• Real-time clock (RTC) with battery backup for scheduled operations
• Self-diagnostic system with detailed fault logging (up to 500 events)

Material Composition:

• Substrate: FR-4 TG180 (high-Tg for solder reflow stability)
• Copper: 70 µm outer layers, 35 µm inner layers (2 oz / 1 oz)
• Surface Finish: ENIG (Electroless Nickel Immersion Gold)
• Conformal Coating: Silicone-based conformal coat (full coverage)
• Key Components: IGBT module (FSBB20CH60C), ARM MCU (STM32F4 series), Ethernet PHY (DP83826)

Working Principle:
Three-phase 400V AC is rectified by the PFC stage to 540V DC bus. The IGBT inverter (driven by PWM signals from the ARM MCU) converts DC to variable-frequency 3-phase AC for motor speed control. The sensorless vector algorithm estimates rotor position from back-EMF, enabling precise torque control without a physical encoder.

Advantages & Highlights:

• Sensorless vector control eliminates encoder wiring and failure points
• Ethernet-enabled — full Industry 4.0 compatibility
• 6-layer PCB — superior EMC performance and signal integrity
• ENIG finish — excellent for high-reliability solder joints

Applicable Industries:

• Commercial laundries (washer-extractors 20–70 kg)
• Industrial textile washing
• Hospital linen processing
• Hotel laundry systems

Installation Requirements:

• Install in IP54-rated control cabinet with forced ventilation (fan)
• Ground all shields to chassis earth at single point
• Use Cat5e shielded cable for Ethernet (max 100 m)
• Maintain 50 mm clearance on all sides for heat dissipation

Usage Precautions:

• Firmware updates only via Ethernet — do not use unauthorized tools
• Replace with exact part number PCE984785 — flash memory is unique per board
• Perform megger test (1000V DC, >20 MΩ) before energizing
• Do not operate with cabinet door open — exposed high-voltage bus