1. General Information

• Manufacturer: ABB (Sweden)

• Model: PDD500A101

• Part Number: 3BHE037649R0101

• Series: 800xA / 800PEC (Power Converter & Excitation Control)

• Type: Power Converter Control Board / Interface Board

• Application: Generator excitation, medium/high‑voltage drives, power quality devices, marine & power plant automation

2. Processor & Memory

• CPU: 32‑bit high‑speed industrial microcontroller

• Clock: 50 MHz

• Flash Memory: 1 MB

• RAM: 128 KB

• Firmware: Upgradeable via Ethernet/serial port

3. Power Supply

• Input Voltage: 24 VDC (±10%)

• Power Consumption: ≤ 15 W

• Isolation: 500 VDC (power to logic)

• Redundancy: Dual power supply supported

4. Communication Interfaces

• Ethernet: 2 × RJ45, 10/100 Mbps (Modbus TCP, Profinet)

• Serial: 2 × isolated RS‑232/485

• Fieldbus: PROFIBUS DP, Modbus RTU

• Fiber/Sync: Optical interface for power unit synchronization

• Baud Rates: 9.6 kbps – 192 kbps (adjustable)

5. I/O Specifications

Analog Inputs (AI)

• Channels: 4 × 16‑bit

• Ranges: 0–10 VDC / 4–20 mA

• Accuracy: ≤ 0.2% of full scale

Analog Outputs (AO)

• Channels: 2 × 12‑bit

• Ranges: 0–10 VDC / 4–20 mA

Digital Inputs (DI)

• Channels: 8 × opto‑isolated

• Input Voltage: 24 VDC

• Response Time: 1 ms max

Digital Outputs (DO)

• Type: 4 × relay (SPST)

• Rating: 250 VAC / 5 A

High‑Speed Counters

• Channels: 2 (for pulse/encoder signals)

6. Environmental Ratings

• Operating Temperature: −20 °C to +70 °C

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

• Humidity: 5%–95% RH, non‑condensing

• Vibration: ≤ 1 g (5–150 Hz, IEC 60068‑2‑6)

• Shock: 15 g peak (11 ms)

• Protection: IP20 (board level)

• Certifications: CE, UL, RoHS, marine type approval

7. Mechanical

• Dimensions (W × H × D): 185 × 120 × 25 mm

• Weight: 0.6 kg

• Mounting: DIN rail / rack slot (ABB standard cabinet)

8. Features

• High EMC Immunity: Designed for harsh power converter environments

• Redundancy: Dual communication channels, processor redundancy support

• Diagnostics: LED status indicators, fault logging, self‑diagnosis

• Protection: ESD, surge, overvoltage, reverse polarity