Seller Notes : “USED BUT TESTED AND EVERYTHING WORKING WELL !”

Features:Programmable

MPN :GCP-2245B/LSB

Controller Platform : OPERATOR INTERFACE PANEL

Key Features & Specifications

1. Core Control Functions

• Speed Governing:

  • Isochronous/Droop Operation (±0.25% accuracy)

  • Engine RPM Range: 0–4,000 RPM (configurable)

• Voltage Regulation:

  • ±0.5% steady-state voltage control

  • Compatible with 1-phase (120/240V) & 3-phase (up to 600V) systems

• Load Management:

  • kW/kVAR load sharing (for parallel gensets)

  • Load ramp rates: 1–100 kW/sec (adjustable)

2. I/O Configuration

• Analog Inputs (6x):

  • 4 × 4–20mA / 0–10V (temp, pressure, etc.)

  • 2 × PT100/RTD (engine temp monitoring)

• Digital Inputs (8x):

  • 24V DC wet inputs (breaker status, start signals)

  • 4 × configurable as pulse inputs (for fuel flow, etc.)

• Outputs:

  • 4 × Relay (5A @ 30V DC / 2A @ 250V AC)

  • 1 × 4–20mA actuator output (governor control)

3. Communication Interfaces

• Standard:

  • RS-485 Modbus RTU (terminals 45–46)

  • CANbus J1939 (engine data – terminals 47–50)

• Optional (via expansion):

  • Ethernet (requires 8440-1150 module)

  • PROFIBUS DP (8440-1160 module)

4. Protection Features

• Engine Safeties:

  • Overspeed (2-stage: Warning @ 110% + Shutdown @ 115%)

  • Low oil pressure (adjustable delay)

  • High coolant temp

• Electrical Protections:

  • Over/under voltage (27/59)

  • Over/under frequency (81O/81U)

  • Reverse power (32)

5. Environmental Specifications

• Operating Temp: -40°C to +85°C (-40°F to +185°F)

• Humidity: 5–95% non-condensing

• Vibration: 5G (5–500Hz, all axes)

• Certifications: UL 508, CE, DNV-GL

6. Power Supply

• Input Range: 9–36V DC (24V nominal)

• Power Consumption: 12W typical / 18W max

• Protections:

  • Reverse polarity (up to 60V)

  • Transient suppression (IEC 61000-4-5)

Model Breakdown (8440-1012 Rev B)

• GCP-20: Base model (20 I/O points)

• Rev B: Hardware revision (enhanced EMC shielding)

• Firmware: v4.2.x (upgradable via Toolkit)

Configuration & Calibration

• Software: Woodward Toolkit (v5.10+ recommended)

• Auto-Tuning:

  • Governor PID self-tuning

  • AVR (Auto Voltage Regulator) calibration

• Custom Logic:

  • 16 function blocks for custom control strategies

  • 8 timers/counters

Wiring Example (Speed Sensing)

MPU Connection:
Terminal 33 (MPU+) → Magnetic Pickup Wire A
Terminal 34 (MPU-) → Magnetic Pickup Wire B
Shield → Ground terminal (ensure single-point grounding)

Typical Applications

• Prime Power: 50–3000kVA diesel/gas gensets

• Marine: ISO 8528-5 compliant installations

• CHP Plants: Combined heat & power systems

• Mission Critical: Data centers, hospitals