The 2301A Speed Control controls the speed or load of diesel or gas engines, or steam or gas turbines. These power sources are referred to as "prime movers" throughout this manual.

The control is housed in a sheet-metal chassis and consists of a single printed circuit board. All potentiometers are accessible from the front of the chassis.

The 2301A Speed Control provides control in the isochronous mode with droop available through an externally wired potentiometer.

The isochronous mode is used for constant speed of the controlled prime mover as long as it is able to provide the load. Isochronous is also used when load sharing with a Woodward load sensor.

External droop is used for speed control as a function of load when a prime mover is operating on an infinite bus or when two or more prime movers are in parallel operation.

The 2301A system for a prime-mover includes: 

  A 2301A electronic speed control, 

  An external power source, 

  A speed-sensing device (MPU), and 

  A proportional actuator to position the fuel- or steam-metering device.

9905-136

9905-138

9905-135

9905-137

9905-132 9907-015

9905-134 9907-017

9905-131 9907-014

9905-133 9907-016

Applications

2301A Speed Controls are available for forward- or reverse-acting applications for use with single or tandem actuators. High voltage models accept 88 to 132 Vac or 90 to 150 Vdc. Low voltage models accept 10 to 40 Vdc supply.

See the Part Number Table above for a listing of 2301A Speed Controls and applications.

Speed range is set on an internal dip switch, available inside the steel cover of the control. Speeds are set according to the sensor output frequency. The relationship between prime-mover speed and sensor-output frequency is expressed in the formula: Sensor Frequency in Hz equals the number of teeth on the speed-sensing gear times the revolutions per minute of the sensing gear, times the ratio of the engine speed to the sensing gear speed, divided by 60.

Reverse Acting

Most reverse acting 2301A Speed Controls will operate Woodward EGB governor/actuators. In reverse-acting systems, the actuator calls for more fuel when the actuator current decreases. Complete loss of signal to the actuator will drive the actuator to full fuel. This allows a backup mechanical ballhead governor to take control rather than shut down the prime mover as would a direct-acting system.

External wiring connections for reverse-acting controls are identical to those for direct-acting controls. However, changes must be made to the printed circuit board should a control need to operate the opposite type of actuator. Contact Woodward should it be necessary to change the type of 2301A Speed Control. Changing the supply voltage rating requires exchanging the unit for the properly rated control.

Woodward 8901-037 booster servo motor single cylinder 8901037

Woodward 9905-021 Low Voltage 2301a Load Sharing and Speed Control rev.r

Woodward 8271-442 2301 Load Sharing and Speed Control

Woodward 9905-797 Numrique Synchroniseur Et Charge Contrle Rev. M

Woodward 9905-797 Digitale Sincronizzare e Carico Controllo Rev.M.

Woodward 9905-797 Digital Synchroneinrichtung Und Ladung Kontrolle Rev. M

Woodward 8280-416 723 Plus Digitale Controllo 9906-619

Woodward 8280-416 723 Plus digital controller 9906-619

Woodward 8280-416 723 Plus Contrle Numrique 9906-619

Ms Woodward 8280-416 723 Control number 9906-619.

Woodward 8271-442 2301 Ladung Gemeinsame Nutzung & Geschwindiggeit Kontrolle

Woodward 8271-442 2301 Charge Partage & Vitesse Contrle

Woodward 2301e la Dung Gemeinsame Nu Tsung & Drehzahlregler 8273-1011 Rev.C.

Woodward 2301e Charge Partage & Vitesse Contrle 8273-1011 Rvise C

Woodward 2301e Carico Conditione & Velocit Controllo 8273-1011 Rev.C.

Woodward 2301e Carga Compartir & Control de Velocidad 8273-1011 Rev.C