Woodward 9907-167 505E Digital Governor

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Manufacturer: Woodward
Model/Part Number: 9907-167
Description: 505E Digital Governor, Low Voltage DC (18–32 VDC), Front Panel Mount, Extraction/Admission Control, Class 1 Div. 2, for Steam Turbines

The Woodward 9907-167 is a second-generation 505E digital governor designed to control single-extraction and/or admission steam turbines of various sizes. It features a 32-bit microprocessor for precise operation and protection of turbines driving generators, compressors, pumps, or industrial fans in industrial, marine, and power generation applications. This model is no longer available for new plant installations, with Woodward recommending the 505XT (8200-1310) as a drop-in replacement.
[](https://www.woodward.com/en/shop/woodward44-industrial-turbines/9907-167)

Specification	Details
Model	9907-167
Series	505E
Type	Microprocessor-based digital governor
Power Supply	18–32 VDC, 15 W typical
Input Voltage	24 VDC nominal (18–32 VDC range)
Speed Inputs	2 Magnetic Pickup Units (MPUs) or proximity probes, 1–60 Vrms, 200 Hz–15 kHz
Analog Inputs	6 programmable, 4–20 mA
Discrete Inputs	16 contact inputs (4 dedicated, 12 programmable)
Control Outputs	2 actuator outputs (4–20 mA or 0–200 mA), 8 relay outputs, 6 programmable 4–20 mA outputs
Communication	Modbus RTU (RS-232/RS-485), optional CAN bus
Display	2-line, 24-character LCD
Keypad	30 analog keys
Enclosure	NEMA 4 (standard), optional NEMA 4X (watertight, dust-tight)
Operating Temperature	-25°C to +65°C (-13°F to +149°F)
Storage Temperature	-40°C to +85°C (-40°F to +185°F)
Relative Humidity	5% to 95%, non-condensing
Vibration	5 G, 10–500 Hz
Shock	30 G peak
Dimensions	356 mm x 279 mm x 102 mm (14 in x 11 in x 4 in)
Weight	< 4.5 kg (< 10 lbs) before shipping
Mounting	Front panel mount
Certifications	CE, UL, cUL, Class 1 Div. 2 (Groups A, B, C, D)
System Compatibility	Single-extraction/admission steam turbines, Woodward actuators, DSLC, LinkNet-HT modules

Product Description

Manufacturer: Woodward
Model/Part Number: 9907-167
Description: 505E Digital Governor, Low Voltage DC (18–32 VDC), Front Panel Mount, Extraction/Admission Control, Class 1 Div. 2, for Steam Turbines

The Woodward 9907-167 is a second-generation 505E digital governor designed to control single-extraction and/or admission steam turbines of various sizes. It features a 32-bit microprocessor for precise operation and protection of turbines driving generators, compressors, pumps, or industrial fans in industrial, marine, and power generation applications. This model is no longer available for new plant installations, with Woodward recommending the 505XT (8200-1310) as a drop-in replacement.
[](https://www.woodward.com/en/shop/woodward44-industrial-turbines/9907-167)

Specification	Details
Model	9907-167
Series	505E
Type	Microprocessor-based digital governor
Power Supply	18–32 VDC, 15 W typical
Input Voltage	24 VDC nominal (18–32 VDC range)
Speed Inputs	2 Magnetic Pickup Units (MPUs) or proximity probes, 1–60 Vrms, 200 Hz–15 kHz
Analog Inputs	6 programmable, 4–20 mA
Discrete Inputs	16 contact inputs (4 dedicated, 12 programmable)
Control Outputs	2 actuator outputs (4–20 mA or 0–200 mA), 8 relay outputs, 6 programmable 4–20 mA outputs
Communication	Modbus RTU (RS-232/RS-485), optional CAN bus
Display	2-line, 24-character LCD
Keypad	30 analog keys
Enclosure	NEMA 4 (standard), optional NEMA 4X (watertight, dust-tight)
Operating Temperature	-25°C to +65°C (-13°F to +149°F)
Storage Temperature	-40°C to +85°C (-40°F to +185°F)
Relative Humidity	5% to 95%, non-condensing
Vibration	5 G, 10–500 Hz
Shock	30 G peak
Dimensions	356 mm x 279 mm x 102 mm (14 in x 11 in x 4 in)
Weight	< 4.5 kg (< 10 lbs) before shipping
Mounting	Front panel mount
Certifications	CE, UL, cUL, Class 1 Div. 2 (Groups A, B, C, D)
System Compatibility	Single-extraction/admission steam turbines, Woodward actuators, DSLC, LinkNet-HT modules

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