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Description
The 9907-166 belongs to the extensive series of Woodward Inc. devices. This series was built as a set of industrial-grade, digital control units for steam turbines. These units belong to a series known as the 505 and 505E models of microprocessors. The 505 and 505E models are built as a set of control units that properly operate the turbine’s actuators in order to drive the steam inlet valves. The 505 and 505E units are entirely programmable to the user’s specifications and can be done so on-site. They utilize a menu-based software to customize the control capabilities needed for the turbine.
9907-166 Technical Specifications
| Dimensions | 14L x 11H x 4D inches |
| Enclosure Type | Optional NEMA 4 |
| Features | 2 Modbus (ASCII or RTU) Comm Ports |
| Input Options | 2 MPUs, 16 Contact Inputs, 6 Programmable Current Inputs |
| Input Voltage | 90–150 Vdc, 88–132 Vac (47–63 Hz) |
| Keypad/Display | 30 Keys |
| Manufacturer | Woodward |
| Operating Temperature | –25 to +65 C |
| Output Type | 2 Actuator Outputs, 8 Relay Outputs, 6 Programmable Current Outputs |
| Resolution | 2 Line LED – 24 Characters |
| Standards | Humidity and Vibration: Lloyd’s ENV2 test #1 |
| Weight | 9.11 lbs |
This unit of the Woodward 505E series is designated as 9907-166. It is outfitted with a 32-bit microprocessor in order to control industrial-grade steam turbines, as well as small units, such as utility turbogenerators or turboexpanders.
The components of the 9907-166 unit are made up of a series of printed circuit boards in an optional NEMA 4X graded frame, designed to be mounted within a system control panel. The NEMA 4X enclosure is there in order to protect the 9907-166 unit from being damaged if mounted within a harsh environment. The ambient temperature range changes when the unit is outfitted with the NEMA 4X frame. Without the frame, the low and high extremes that the unit can handle are -25 to 65 degrees C, but with the frame attached, it changes to a high of 55 C.
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