1. Product Overview

2. Key Features

• All-in-One Design: Combines paralleling, protection, measurement, and control functions.

• High Precision Monitoring: True RMS measurement of voltage, current, frequency, power, and energy.

• Comprehensive Protection: Over/undervoltage, over/underfrequency, overcurrent, reverse power, and engine protection.

• Seamless Paralleling: Automatic synchronization, load sharing, and bumpless transfer for multiple generators.

• Flexible Communication: Modbus RTU (RS-232/485) for PLC/SCADA integration; optional Ethernet.

• Intuitive Interface: Backlit LCD with multi-language support; push-button navigation.

• Robust Hardware: Wide operating temperature (-20°C to +70°C); high vibration resistance.

• Easy Configuration: PC software or front-panel setup; parameter backup/restore.

• Scalable System: Network up to 16 units for total plant control.

3. Technical Specifications

3.1 Electrical Ratings

3.2 Environmental & Mechanical

4. Application Scope

• Industrial Generator Sets: Standby/prime power for factories, data centers, and hospitals.

• Grid Parallel Systems: Peak shaving, load sharing, and backup power for utility-connected sites.

• Renewable Integration: Hybrid systems with solar/wind for stable power output.

• Marine & Offshore: Emergency power for vessels and offshore platforms (non-classed).

• Critical Infrastructure: Uninterruptible power for airports, telecom, and financial institutions.

5. Installation & Wiring

5.1 Installation Requirements

1. Mounting: Install vertically on a flat panel; ensure adequate ventilation (≥50 mm clearance around unit).

2. Environment: Avoid direct sunlight, moisture, and corrosive gases; maintain ambient temperature within -20°C to +70°C.

3. Vibration: Use shock mounts if installed on engine or high-vibration equipment.

5.2 Wiring Guidelines

1. Power Supply: Connect 12/24 VDC to terminals 1 (+) and 2 (-); use twisted pair wire (≥1.5 mm²).

2. Voltage Inputs: Connect L1/L2/L3 and neutral to terminals 3–7; use 1.0–2.5 mm² wire.

3. Current Inputs: Connect CT secondary (5 A) to terminals 8–13; use 2.5–4 mm² wire; never open CT circuit.

4. Digital I/O: Connect inputs (24 VDC) to terminals 14–21; connect relay outputs to terminals 22–33 (5 A/250 VAC).

5. Communication: Connect RS-232 (terminals 34–36) or RS-485 (terminals 37–39) for Modbus RTU.

6. Grounding: Connect chassis ground (terminal 40) to system earth (≤4 Ω) for ESD protection.

5.3 Wiring Diagram (Simplified)

6. Operation & Configuration

6.1 Front Panel Overview

• LCD Display: 4-line backlit screen; shows status, measurements, and alarms.

• Push Buttons:

  • ESC: Exit menu/return to previous screen.

  • ▲/▼: Navigate menus/adjust values.

  • ENTER: Confirm selection/enter submenu.

  • ALARM: View active alarms/event history.

6.2 Basic Operation

1. Power On: Apply DC power; controller initializes (5 seconds) and displays main screen.

2. Main Screen: Shows generator voltage, frequency, load (kW/% ), and status (Running/Stopped/Alarm).

3. Menu Navigation: Press ENTER to access main menu (Measurements, Protection, Control, Communication, Settings).

4. Parameter Adjustment: Select menu → submenu → parameter; use ▲/▼ to change value; press ENTER to save.

5. Alarm Handling: Press ALARM to view active alarms; resolve fault; press ESC to clear alarm (if fault is reset).

6.3 Configuration Steps (Quick Start)

1. Set System Parameters:

   • Language: Select English (default).

   • System Type: Choose 3-phase 4-wire.

   • Rated Voltage: Set to 400 VAC (50 Hz) or 480 VAC (60 Hz).

   • Rated Current: Set CT primary value (e.g., 500 A).

2. Configure Protection:

   • Overvoltage: 110% Un (5 s delay).

   • Undervoltage: 90% Un (5 s delay).

   • Overfrequency: 52 Hz (5 s delay).

   • Underfrequency: 48 Hz (5 s delay).

   • Overcurrent: 125% In (10 s delay).

   • Reverse Power: 5% Pn (3 s delay).

3. Set Paralleling Parameters:

   • Sync Mode: Automatic.

   • Voltage Match: ±1% Un.

   • Frequency Match: ±0.1 Hz.

   • Phase Angle: ±5°.

   • Load Sharing: Droop 3%.

4. Communication Setup:

   • Protocol: Modbus RTU.

   • Baud Rate: 9600 bps.

   • Address:  1 (default).

7. Safety Precautions

• High Voltage Hazard: Only qualified electricians should install/service this unit; disconnect all power before wiring.

• CT Circuit Safety: Never open CT secondary circuit; this causes lethal high voltage.

• ESD Protection: Use anti-static wristband when handling controller; avoid touching PCB components.

• Environmental Limits: Do not operate outside -20°C to +70°C; avoid condensation.

• Vibration Caution: Securely mount unit; excessive vibration may cause damage or false alarms.

• Wiring Integrity: Use appropriate wire gauge; tighten terminals to 0.8–1.0 Nm; avoid loose connections.

8. Maintenance & Storage

8.1 Regular Maintenance (Every 6 Months)

1. Visual Inspection: Check for loose terminals, damaged wiring, or corrosion.

2. Cleaning: Wipe front panel with dry cloth; do not use liquid cleaners.

3. Function Test: Verify all protection functions and alarms.

4. Calibration: Recalibrate voltage/current inputs (if accuracy drifts).

5. Communication Check: Test Modbus communication with PLC/SCADA.

8.2 Storage Guidelines

• Condition: Store in original packaging at 10–30°C, 30–70% RH.

• Environment: Keep dry; avoid direct sunlight and extreme temperatures.

• Duration: Shelf life ≤ 2 years; inspect before use if stored longer.

9. Troubleshooting

10. Warranty & Disclaimer

• Model: ENERCONGCP3 (GPC-3) Generator Paralleling & Protection Controller.

• Warranty Period: 24 months from delivery date under normal installation and use.

• Warranty Exclusions: Damage from misuse, overvoltage, lightning, water ingress, or unauthorized modification.

• Specifications Subject to Change: Manufacturer reserves the right to update specifications without prior notice.

• Liability Limitation: Manufacturer is not liable for indirect or consequential damages.

• Documentation Version: 1.0 (2026); latest manual available at www.deif.com.