Varying star amount pictures Varying star amount pictures Varying star amount pictures Varying star amount pictures Varying star amount pictures
  • 4.50 (2)
  • Click a star to rate this product
    Varying star amount pictures Varying star amount pictures Varying star amount pictures Varying star amount pictures Varying star amount pictures
  • 4.50 (2)
  • Click a star to rate this product
Woodward's 9907-007 is a replacement Digital Synchronizer and Load Control for Obsolete DSLC part number 9905-287. This unit features 120/240 Voltage Input, wye PT Config, and a +3.0 Vdc Speed Bias



3 Year Warranty: Learn More
Sell Surplus: Have a 9907-007 to sell? Sell Now
Exchange Credit: Learn more about our exchange credit program
  • Part Number: 9907-007
  • SKU: 9907007WO
  • Manufacturer: Woodward
  • Series: DSLC Digital Synchronizer and Load Control

9907-007 Technical Specifications

Configuration Wye PT
Dimensions 18.14in x 10.4in x 2.3in
Features +3.0 Vdc Speed Bias
Input Voltage 120/240 VAC
Manufacturer Woodward
Operating Temperature -40 to 158 F
Standards for Humidity 95% at 38 °C
Storage Temperature -67 to 221 F
Weight 6lbs 14oz

Product Description

This unit is model number 9907-007 in Woodward’s series of microprocessor-based Digital Synchronizer and Load Controls. This model is Woodward’s replacement for the 9905-287, which was made obsolete in 1995. The 9907-007 model is designed to be used in the paralleling, synchronizing, loading, and unloading of three-phase AC generator sets. It is one of the reduced upgrade level units in this Woodward series, and therefore does not have power factor control or process control functions.


A few of the 9907-007 functions include:

  • Built in diagnostics
  • Setup, metering, and diagnostic capability through a handheld programmer terminal
  • Automatic generator loading and unloading
  • Droop, base load, and isochronous load control capability
  •  Reverse power relay.



This device has a WYE PT Configuration, a +3.0 Vdc Speed Bias, and a 120/240 Vac Input Voltage. It is rated for use in operating temps from –40 to +70 °C (-40 to 158 F) and storage temps from –55 to +105 °C (-67 to 221 F). Additional environmental specifications for the 9905-895 are:

  • Humidity …... 95% at 38 °C
  • Mechanical shock …... US MIL-STD 810C, Method 516.2, Procedures I, II, V
  • Electromagnetic susceptibility …... ANSI/IEEE C37.90.2; ANSI C37.90.1-1989
  • Vibration …... US MIL-STD 167, Type I


The 9907-007 offers either phase matching or slip frequency synchronizing. Actual slip frequency and breaker delay values are used to anticipate a minimum phase difference between generator and bus at actual breaker closure for both methods. There is an automatic dead-bus closure function on this control, where only one DSLC control is granted dead-bus closing permission through locking techniques over the communications network.


Additional synchronizer features that may be enabled or disabled during setup include time delayed automatic multi-shot reclosing, voltage matching, auto-resynchronizing, and synchronizer timeout alarm


For additional information, product specifications, and safety precautions for Woodward part 9907-007 DSLC, please consult the Woodward DSLC Digital Synchronizer and Load Control Manual 02007, available online.

Reviews For 9907-007

Internal Review

The new 9907-007 DSLC provides a safe automatic dead-bus closure function. Deadbus closing permission is granted to only one DSLC control through locking techniques done over the communications network. - AX Control Tech

Repair Services For 9907-007

Type Lead Time Price Action
Repair Service 1-2 weeks $1367

Our highly skilled technicians can repair your 9907-007. All of our repairs come with a 3 Year AX Control Warranty. Please contact us for additional information about our repair process. To receive the repair pricing and lead time listed above please process your repair order via our website. The following repair options may be available upon request:

  • 48-72hr Rush Repair
  • Detailed Repair Reports
  • AX Control Certificate of Warranty

AX Control Warranty Info

All products we sell are backed by our unparalleled warranty. A warranty certificate will be provided with your order upon request.
All PLCs, HMIs, and Turbine Control Boards: 3 Years
All AC/DC and Servo Drives: 2 Years
All Motors: 1 Year
Learn More