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3 year warranty

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DSLC Woodward Part 9905-354 for three-phase AC generators, features a Voltage Input of 120/240, wye PT Configuration, and 0.5–4.5 Vdc Speed Bias



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  • Part Number: 9905-354
  • SKU: 9905354WO
  • Manufacturer: Woodward
  • Series: DSLC Digital Synchronizer and Load Control

9905-354 Technical Specifications

Dimensions 18.14in x 10.4in x 2.3in
Features Wye PT Configuration
Input Voltage 120/240 VAC
Manufacturer Woodward
Operating Temperature -40 to 158 F
Relay Driver Output Voltage 18 to 40 VDC Current:200 mA sink
Storage Temperature -67 to 221 F
Weight Less than 7lbs.

Product Description

Woodward model 9905-354 is a microprocessor-based DSLC Digital Synchronizer and Load Control. This control is designed for paralleling, synchronizing, loading, and unloading three-phase generator sets when used with a Woodward speed control and an automatic voltage regulator.

A few of the 9905-354 functions include:

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

The 9905-354 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
  • Synchronizer timeout alarm

With the 9905-354 DSLC control, the internal digital base load reference may be raised or lowered through switch inputs. Possible remote load setting via a 4–20 mA analog input. Load and unload ramps ensure a smooth transition when the operating mode is changed.

To protect against static damage, certain precautions should be followed when working with or near the control, such as touching and holding a grounded metal object (pipes, cabinets, equipment, etc.) to discharge the static electricity on your body to the ground before doing maintenance on the DSLC, wearing natural fiber clothing while performing maintenance on the control, and keeping plastic, vinyl, and Styrofoam materials away from the control, the modules, and the work area as much as possible.

Reviews For 9905-354

Internal Review

Avoid the build-up of static electricity on your body by not wearing clothing made of synthetic materials. Wear cotton or cotton-blend materials as much as possible because these do not store static electric charges as much as synthetics. - AX Tech Team

Repair Services For 9905-354

Type Lead Time Price Action
Repair Service 1-2 weeks $1578

Our highly skilled technicians can repair your 9905-354. 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

9905-354 Manuals, White Papers, Data Sheets, and Troubleshooting