The control is housed in a sheet-metal chassis and consists of a single printedcircuit board.
All potentiometers are accessible from the front of the chassis.
The 2301A provides control in either isochronous or droop mode.
The isochronous mode is used for constant prime mover speed with:
2.Two or more prime movers controlled by Woodward load sharing control systems on an isolated bus
3.Base loading against an infinite bus with the load controlled by an Automatic Power Transfer and Load (APTL) Control, an Import/Export Control, a Generator Loading Control, a Process Control, or another load-controlling accessory.
The droop mode is used for speed control as a function of load with:
1.Single-prime-mover operation on an infinite bus or
2.Parallel operation of two or more prime movers.
Load Sensing 90–240 Vac 3ø 45–66 Hz 3ø current transformer input
Speed Sensor Input Impedance 100–300 Ω
Speed Sensor magnetic pickup 1.0 Vac minimum to 30 Vac maximum
Speed Trim 0–100 Ω for 0 to 10% speed change
Actuator 7.5 Vdc max for 0 to 214 mA with 35 Ω coil