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Technical specifications for 9907-186
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Product Category:Gas Turbine Control
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Spare Part Number:9907-186
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Estimated shipping dimensions:22.2x8x26.6cm
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Weight:2.18 kg
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Tariff Code:8537101190
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Counliy of origin:USA
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Command input:4-20 mA
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Power supply:18-32 V DC
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Position feedback:4-20 mA
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Discrete input:Shutdown/reset contact
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Discrete output:Driver fault contact
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Maximum valve cable:60 m
Information
Overview
Manuals
Common Applications
Product Precautions
9907-186 drives the documented GS3/LQ liquid-fuel metering valve from the control-system command signal.
- Converts the control command into valve position
- Returns documented position feedback
- Provides shutdown/reset and fault interfaces
- Supports integrated liquid-fuel metering
The driver interfaces the 4-20 mA command with the electrically actuated valve and returns position and fault information. Commissioning verifies polarity, valve cable, feedback calibration, shutdown behavior and controlled stroking.
Important Notice: Confirm WOODWARD 9907-186, GS3/LQ driver and valve, 18-32 V DC supply, 4-20 mA command and feedback, shutdown/reset and fault contacts, valve cable, grounding, calibration and controlled stroke results before commissioning.
Apter Power WOODWARD 9907-186 Manuals and Guides
- Apter Power WOODWARD 9907-186 Product and System Technical Reference PDF
- Apter Power WOODWARD 9907-186 Installation and Commissioning Workbook PDF
The first document presents model-specific technical and system data. The second provides a distinct installation, connection, commissioning and acceptance workflow.
Gas-turbine liquid-fuel control
Positions the metering valve from the turbine control command.
Fuel-bypass regulation
Supports the approved bypass or metering arrangement in the fuel system.
Valve-driver replacement
Restores an exact driver position with recorded loop and cable evidence.
Fuel-system recommissioning
Provides controlled stroke, feedback and shutdown verification before fuel enablement.
Read the applicable WOODWARD installation instructions before work. Verify 9907-186, the installed host system and all configured field interfaces before isolation, wiring or commissioning.
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Confirm WOODWARD 9907-186 and the assigned GS3/LQ valve-driver position.
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Place the turbine and fuel system in the approved maintenance state.
3
Isolate the 18-32 V DC supply and secure the fuel system.
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Record command, feedback, shutdown/reset, fault and valve-cable connections.
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Confirm the approved valve, cable length and mechanical fuel arrangement.
6
Restore wiring, calibration and turbine-control configuration.
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Review driver supply, feedback, fault and shutdown diagnostics.
8
Complete a controlled valve stroke and fail-safe shutdown test before fuel release.
Alternative Names
GS3/LQ Valve Driver
Technical notes
Record the 4-20 mA command, position-feedback loop, 18-32 V DC supply, shutdown/reset contact, driver-fault contact and valve cable before removing 9907-186. Restore the approved GS3/LQ configuration and complete a controlled stroke and shutdown test before enabling fuel flow.
FAQ View All FAQ
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How should 4-20 mA command be verified for WOODWARD 9907-186?Confirm WOODWARD 9907-186, GS3/LQ driver and valve, 18-32 V DC supply, 4-20 mA command and feedback, shutdown/reset and fault contacts, valve cable, grounding, calibration and controlled stroke results before commissioning.
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Which record controls 18-32 V DC power on WOODWARD 9907-186?Record the 4-20 mA command, position-feedback loop, 18-32 V DC supply, shutdown/reset contact, driver-fault contact and valve cable before removing 9907-186. Restore the approved GS3/LQ configuration and complete a controlled stroke and shutdown test before enabling fuel flow.
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What must be preserved for valve cable when servicing WOODWARD 9907-186?Record command, feedback, shutdown/reset, fault and valve-cable connections.
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How is fault contact isolated before work on WOODWARD 9907-186?Place the turbine and fuel system in the approved maintenance state. Isolate the 18-32 V DC supply and secure the fuel system.
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What official check applies to shutdown/reset for WOODWARD 9907-186?Confirm the approved valve, cable length and mechanical fuel arrangement.
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How is position feedback restored after fitting WOODWARD 9907-186?Restore wiring, calibration and turbine-control configuration.
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Which diagnostic confirms controlled stroking for WOODWARD 9907-186?Review driver supply, feedback, fault and shutdown diagnostics.
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What proves service evidence is accepted for WOODWARD 9907-186?Complete a controlled valve stroke and fail-safe shutdown test before fuel release.
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