Control

Speed: Dynamics maps are field selectable for either low speed (8–300 rpm) or high speed (300–2100 rpm).

Dynamics: Two menus for engine dynamics are switch-selectable for alternate fuel, alternate loads, etc. Four

different gain settings in each dynamics menu tailor governor response to various conditions depending on load or

non-linearity in the fuel control system.

Limiters: Limiters set minimum, idle, and maximum fuel settings, and minimum and maximum torque schedules.

Two-slope torque limit schedule with program-selected breakpoint is available.

Speed Switches: Three speed switches are included with programmable on and off positions according to engine

speed. The switches may be used to indicate cranking, idle, rated, or overspeed operation. Switch output is 500 mA

when closed. Increase-speed trip points may vary from decrease-speed trip points.

Droop: Two droop schedules are available, with a programmable switch point between idle droop and rated droop.

Speed Reference: Programmable minimum and maximum limiters with 4–20 mA remote reference to raise and

lower the rated speed. Rate of change of speed reference may be programmed with different rates for raise and

lower.

Accel and Decel Ramps: Acceleration and deceleration times may be programmed to protect engines from damage

or to protect processes from sudden changes.

Supply Voltage Range:

8–32 Vdc for ProAct I

18–32 Vdc for ProAct II

Technical Manual: 04121