Generator Speed Controller ESD5111 for Diesel Engine Governor with Precise Speed Regulation and Fast Load Response

Speed Control ESD5111 Color: ESD5111 Model: ESD5111 Product type: Governor speed control for generator and engine applications What this product does and why it matters Provides closedloop electronic speed control for engines and generators, maintaining stable RPM under changing load conditions. Fast, precise response to instantaneous load changes when used with compatible magnetic speed sensors, reducing engine hunt and improving power quality. Compact, lowpower unit suitable for 12 V and 24 V battery electrical systems with negative ground polarity. Key benefits Accurate speed regulation: thermal stability up to +/1 percent and adjustable idle, ramp, and droop settings for fine tuning. Wide compatibility: accepts espeed magnetic sensor signals and a broad speed sensor input range for use on many types of engines and generator sets. Durable in harsh environments: designed to operate across wide temperature and humidity ranges and tolerate vibration within specified limits. Low power draw and strong actuator support: nominal consumption of 50 mA and continuous actuator current capacity from 2.5 A to 10 A. Main features Closedloop electronic control for precise governor operation and quick correction to load changes. Droop adjustment range: minimum approximately 15 Hz per amp of load change (tolerance +/6 Hz), maximum approximately 400 Hz per amp (tolerance +/75 Hz). Speed range: 1 kHz to 7.5 kHz. Thermal stability: max +/1 percent. Idle adjustment: 160 +/20 Hz up to 95 percent of rated speed. Ramp adjustment: 160 +/20 Hz to about 70 percent of rated speed. External speed adjustment: +/200 Hz via external 1 kohm on AUX. Input sensitivity: 148 Hz per 1 V with tolerance +/10 Hz; input impedance 1 megohm for start fuel input. Time adjustment: 1.5 to 20 seconds at 10 V. Output current: maximum 20 mA. Actuator continuous current: minimum 2.5 A, maximum 10 A. Speed sensor signal input range: 0.5 to 120 RMS. Power consumption: 50 mA. Operating temperature range: 40 C to 85 C. Storage temperature range: 55 C to 90 C. Operating humidity: up to 95 percent. Shock and vibration tolerance: 20 to 100 Hz, 500 mm/s. Compact size: 18 x 17.5 x 5 cm. Color as shown: ESD5111. Package includes: 1 speed controller ESD5111. Typical applications Standby and prime generator sets: maintain steady output frequency and speed during varying electrical loads. Industrial engines driving pumps, compressors, or fans: provide reliable speed control and droop adjustment for load sharing or stable operation. Mobile or marine generator installations operating on 12 V or 24 V systems: compact governor solution compatible with magnetic speed sensors. Installation and handling notes Intended as an engine speed control component. Follow product documentation for installation and servicing. Avoid exposure to extreme heat. Ensure proper wiring to 12 V or 24 V negativeground battery systems. Performance depends on correct connection to speed sensor and actuator; consult installation instructions for wiring and adjustment guidance. Manual measurement tolerances may apply to physical dimensions. What is included 1 Speed Controller ESD5111 This controller is offered for users who need reliable, adjustable electronic speed regulation for generators and enginedriven equipment that accept magnetic speed inputs.