The Woodward 9907-205, also cataloged as the 9907-205 Hand Held Programmer, operates as a dedicated hardware component for parameter configuration, dynamic setpoint adjustment, and menu diagnostics within Woodward MSLC/DSLC and 723 Digital Control platforms.

Variant Matrix & Alternate Cross-References

The 9907-205 handheld terminal (also designated as WO-53281) connects to Woodward digital governors and synchronizers via a serial communication port. It serves as an analog/digital interface device to modify speed references, dynamic PID gains, and operational limits across MSLC, DSLC, ProAct, and 723 control platforms without requiring a external host computer.

Technical Performance Parameters

Governor Loop Feedback & Actuator Response Dynamics

The handheld programmer provides direct digital parameter entry into governor memory, allowing precise calibration of actuator loop feedback response and field-oriented control gains. Adjusting setpoints via the 9907-205 terminal directly shapes the PID dynamic response curves, reducing harmonic distortion suppression limits and stabilizing valve positioning during rapid load changes on prime mover governors.

Package Component List

• 1 x Woodward 9907-205 Hand Held Programmer
• 1 x Serial Interconnect Cable

Field Installation & Communication Wire Guidelines

• Bus Stub Length Limits: Ensure stub wiring connecting the programmer to the main control bus does not exceed 600 mm total length.
• Shielding & Grounding: Connect cable drain shields to designated frame ground terminals at one end to prevent serial communication corruption from high EMI fields.
• Bus Termination: Maintain proper termination resistors across the handheld communication bus when interfacing multi-node networks up to 20 nodes.
• Hot-Plugging Precaution: Verify ground potential equilibrium between the handheld unit enclosure and the main controller chassis before mating communication connectors.

Frequently Asked Questions

• Q: What digital control platforms are compatible with the 9907-205 programmer?

  A: The programmer interfaces directly with Woodward MSLC, DSLC master synchronizers, ProAct digital speed controls, and 723 series digital controls.

• Q: Can the 9907-205 handheld terminal be powered directly from the connected control system?

  A: Yes, it accepts an operating input supply from 7 to 28 VDC, drawn either through the serial cable interface or an external source.

• Q: What is the maximum permitted stub length for network connections?

  A: The maximum stub length for reliable serial data transmission between the programmer and the bus is 600 mm within standard temperature ranges.

• Q: How many nodes can be attached to a single bus line when using this device?

  A: Up to 20 maximum nodes per bus line are supported across ambient operating temperatures ranging from 40 deg C to 85 deg C.

• Q: Does the 9907-205 require software installation on a PC to operate?

  A: No, the unit is a self-contained handheld terminal with an internal keypad and display designed for direct field configuration of control parameters.

• Q: What ESD protection rating is integrated into the hardware design?

  A: The 9907-205 hardware is rated to withstand electrostatic discharge levels up to 15 kV without component damage.

• Q: What is the storage temperature rating for the handheld unit?

  A: The storage temperature range for the hardware is specified from -55 deg C to 100 deg C.

• Q: What is the physical weight of the 9907-205 unit?

  A: The unit weighs approximately 1.02 kg (2.25 lbs).