Generator frequency sensing speed control unit.

Basic, low cost speed control.

Basic speed controller with gain and stability adjustment as well as switchable dead time compensation.

Basic speed controller with gain and stability adjustment and adjustable idle speed.

Speed controller featuring remote switchable droop or isochronous operation and remote switchable idle/run speed selection.

Functionally the same as ESD5100 Series but also has an independent single element speed switch for overspeed protection.

Functionally the same as ESD5100 Series but with speed ramping circuitry and starting fuel limiting for engine emission control. Also features a two element speed switch and a high power actuator output.

Similar to ESD5200 but designed for use with position feedback actuators. Additional features include speed ramping control, fuel limit, switchable dual gain settings and additional control loop tuning facilities.

Similar to ESD5100 but with the addition of fuel ramping/limiting to minimise exhaust smoke on engine startup.

Functionally the same as ESD5100 Series but with speed ramping circuitry and starting fuel limiting for engine emission control. Also features a two element speed switch.