Overview
The Woodward 8406-121 EGCP-2 is an engine generator control unit designed for monitoring and managing generator systems. It supports 50–150 Vac PT input, operates on a 9–32 Vdc supply, and provides comprehensive input/output options for industrial generator applications.
Power Supply
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Rating: 9–32 Vdc (SELV)
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Consumption: ≤13 W nominal, 20 W maximum
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Input Supply Current: 12 V nominal – 1.08 A; 24 V nominal – 542 mA; 32 V – 406 mA
Electrical Inputs
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PT Input: 50–150 Vac (8406-121), 150–300 Vac (8406-120)
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CT Input: 0–5 A rms
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Generator Frequency Range: 40–70 Hz
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Magnetic Pickup: 100–15,000 Hz
Control Inputs
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Discrete Inputs: 8, 5 mA source current when closed to switch common (65)
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Process Input: 4–20 mA, 1–5 Vdc
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Temperature/Pressure Inputs: 0–200 Ω sensors, 4–20 mA transducer, or 0–5 V transducer
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Speed Bias: ±3 Vdc, 0.5–4.5 Vdc, 5 V peak, 500 Hz PWM
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Voltage Bias: ±1 Vdc, ±3 Vdc, ±9 Vdc
Outputs
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Relay Outputs: 10 A, 250 Vac resistive; 249 W (1/3 hp), 125 Vac (7.2 A, 0.4–0.5 PF); 10 A, 30 Vdc resistive
Communications
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Ports: RS-485, RS-422
Environmental Conditions
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Operating Temperature: –20 to +70 °C (–4 to +158 °F)
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Storage Temperature: –40 to +105 °C (–40 to +221 °F)
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Humidity: 95% at 20–55 °C (68–131 °F)
