ESD5550E Speed Controller
The ESD5550 Series speed control unit is an all electronic device designed to control engine speed with fast and precise response to transient load changes. This closed loop control, when connected to a proportional electric actuator and supplied with a magnetic speed sensor signal, will control a wide variety of engines in an isochronous or droop mode. It is designed for high reliability and built ruggedly to withstand the engine environment.
Simplicity of installation and adjustment was foremost in the design. Non-interacting performance controls allow near optimum response to be easily obtained.
The primary features of the ESD5550/5570 Series speed control unit are the engine STARTING FUEL and SPEED RAMPING adjustments. The use of these features will mimimize engine exhaust smoke experienced prior to attaining engine operating speed.
Other features include adjustable droop and idle operation, inputs for accessories used in multi-engine or special applications, protection against reverse battery voltage, transient voltages, accidental short circuit of the actuator and fail safe design in the event of loss of speed sensor signal or battery supply.
The ESD5550 Series speed control unit is compatible with all GAC proportional actuators except the ACB2000 electric actuator. When the ESD5550 Series speed control unit is used with a ADC100 Series electric actuator, the DROOP adjustment range will be less due to this actuator's low current demand.
| PERFORMANCE |
| Isochronous Operation/Steady State Stability | ±0.25% |
| Speed Range/Governor | 1K-7.5K Hz.continuous |
| Speed Drift with Temperature | ±1% Maximum |
| Idle Adjust CW | 60% of set speed |
| Idle Adjust CCW | Less than 1200 Hz. |
| Droop Range | 1-5% regulation |
| Droop Adj. Max. (K-L Jumpered) | 400 Hz., ±75Hz.per 1.0 A Change |
| Droop Adj. Min. (K-L Jumpered) | 15 Hz., ±6 Hz.per 1.0 A Change |
| Speed Trim Range | ±200 Hz. |
| Remote Variable Speed Range | 500-7.5 Hz.or any part thereof |
| Terminal Sensitivity | J | 100 Hz., ±15 Hz/Volt @ 5.0 K Impedance |
| L | 735 Hz., ±60 Hz/Volt @ 65 K Impedance |
| N | 148 Hz., ±10 Hz/Volt @ 1 Meg. Impedance |
| P | 10V DC Supply @ 20 ma Max. |
| Speed Switch Adjustment Range | 1000-10000 Hz. |
| ENVIRONMENTAL |
| Ambient Operating Temperature Range | -40° to +85°C |
| Relative Humidity | Up to 95% |
| All Surface Finishes | Fungus Proof and Corrosion Resistant |
| INPUT POWER |
| Supply | 12 or 24V DC Battery Systems (Transient and Reverse Voltage Protected) |
| Polarity | Negative Ground (Case Isolated) |
| Power Consumption | 50 ma continuous plus actuator current |
| Actuator Current Range @ 25°C - (Inductive Load) | Min. | 2.5 Amps |
| Max. | 10 Amps continuous |
| Speed Sensor Signal | 0.5-120 Volts RMS |
| Speed Switch Relay Contacts(N.O. And N.C.) | 10 Amps |
| RELIABILITY |
| Vibration | 1G @ 20-100Hz. |
| Testing | 100% Functionally Tested |
| PHYSICAL |
| Weight | 1.8 lbs. (0.82kg) |
| Mounting | Any Position, Vertical Preferred |
Chongqing Boce Technology Co., Ltd, located in Chongqing's new high-tech industrial development zone. is specialized in researching, manufacturing and sales of industrial automatic controlling machines and intelligent instruments.
We have been dedicated to promoting generator set's automatic control since our company is established. Generator's modification and best automatic control products as well as OEM and ODM servives are offered for lots of generator users. our aim is "professional technology, superior service".
We supply many products with reliable quality and lower prices, such as automatic generator controllers, electronic monitors, intelligent meter boxes and ATS group control boxes by using internationally advanced micro-computer control chips. Our products have won a good reputation among customers. We have an experienced automation R&D engineer team. Our veteran technical engineers and top project managers are whole-heartedly waiting for serving your companies.
