Product description： The ESD5500E 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.
Isochronous Operation/Steady State 0.25% or better ±Stability.. Speed Range/Governor . 1K–7.5K Hz continuous 1% Maximum ±Speed Drift with Temperature Idle Adjust CW ..... 60% of set speed Idle Adjust CCW .... Less than 1200 Hz. Droop Range ....... 1 – 5% regulation* 75 ±Droop Adj. Max. (K-L Jumpered) ..... 400 Hz., Hz. per 1.0 A change 6 Hz. per ±Droop Adj. Min. (K-L Jumpered) ... 15 Hz., 1.0 A change 200 Hz. ±Speed Trim Range ...... Remote Variable Speed Range ......... 500 – 7.5 Hz. or any part thereof