Woodward 9907-164 505 Digital Turbine Controller

The Woodward 9907-164 is part of a governor control unit based on the 505 and 505E microprocessors. This control module is specifically designed to operate steam turbines, turbogenerators and turboexpander modules.

The 9907-164 unit is designed to control the steam turbine by operating a single extraction and/or admission of steam. It utilizes the segmented actuators of the steam turbine, one or two of which drive the steam inlet valve. As with any 505 governor module, the unit can be configured in the field by a field operator. The menu-driven software is controlled and changed by an operator control panel integrated on the front of the device. The panel displays two lines of text, each of 24 characters.

The 9907-164 is equipped with a range of discrete and analog inputs: 16 contact inputs (of which 4 are dedicated and 12 are programmable), followed by 6 programmable current inputs at 4 to 20 mA.

In addition, standard features on the 9907-164 include critical speed avoidance, valve limiter, automatic start sequence, and stop-first out indicators.

In summary, the Woodward 9907-164 is a powerful and reliable governor control unit for a wide range of applications requiring the operation of steam turbines, turbo generators and turbo expanders.