Description
Woodward 9905-028 2301A Series Load Sharing & Speed Control. Rated for use in ordinary locations, used with diesel or gasoline engines.
9905-028 Technical Specifications
Dimensions | 387.35mm x 180.975mm x 63.5mm |
Enclosure Type | Sheet Metal |
Idle Speed Select Input | external switch, open terminals 19-16 |
Speed Setting | internally adjustable 100 Omega potentiometer, external 0-10% speed trim |
Weight | 1.758 kg |
AX Control inc buys, sells, repairs, and refurbishes the 9905-028 model from Woodward INCs 2301A series of Load Sharing and Speed controls. This specific model is a forward-acting 20-40 Vdc model, the control is also an individual actuator model with a current of 0-200 mA. If while connecting the model you are using a speed trim potentiometer verify that is connected using shielded wire, if the shielded wire is not used it can cause damage to the control and severely impede the performance of the control. Prior to starting the prime mover assess the speed sensor, if the speed sensor has failed and needs to be cleared put the control speed at five percent lower. If for any reason an external device needs to be attached to the control the terminal block for wiring the system and control are located at the lower portion of the front panel. When attempting to start the prime mover and it does not start it is possible that there is no actuator voltage located at terminals twenty and twenty-one, to fix this error check that the actuator has not been shortened or grounded by removing the wires from the proper terminals before terminating the power on the prime mover, close the terminal eighteen switch and shorten the twenty-third and twenty-fourth terminals; check the voltage from terminals eighteen to twenty-two. Assess terminals twenty-eight and twenty-nine for at least 1 Vrm and that the minimum rated speed at less than five percent.
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"
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.
Main brands include: ABB, Bailey, GE, FOXBORO, Invensys TRICONEX, Bentley BENTLY, A-B Rockwell, EMERSON EMERSON, B&R, MOTOROLA, FUANC, REXROTH, KUKA, HONEYWELL, NI, DEIF, Yokogawa, WOODWARD WOODWARD, Ryan, SCHNEIDER SCHNEIDER, Yaskawa, MOOG, EPRO, PROSOFT and other major brands
The company focuses on DCS, PLC, robot, large servo four systems
The main products are various modules/cards, controllers, touch screens, servo drivers
Company advantage: Supply imported original products, professional production of spare parts
One year warranty, fast delivery time, complete supply !!!
① 24 hours email response (12 hours);
② For shipment outside Asia, please contact the seller.
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