9907-135 Woodward GS3/LQ Valve Driver
Description:
9907-135 is Woodward GS3/LQ Valve Driver. The GS3/LQ Valve Driver is an integrated liquid fuel metering system whichfeatures; valve position control, all electric actuation, fuel bypass, fuel flowregulation, and fault indication.

The GS3/LQ Valve Driver controls the valve/actuator position proportional to a4-20 mA input sianal. The driver also provides fault indication and RemoteShutdown/Reset functions. The driver requires power from a 18-32 Vdc powersupply.

The accompanying valve/actuator assembly is a brushless dc limited angletorquer which positions a valve for liquid fuel flow control. The actuator is directlcoupled to both the valve metering port and position feedback resolver. Thereare no intervening gears, linkages, or flex couplings. See the appropriate manualfor the valve/actuator.

Demand Input

The position demand input signal is 4–20 mA. The actual valve positionscorresponding to the 4 mA and 20 mA are beyond the fully closed and max ratedport area positions, respectively. The max mechanical stop is located above the20 mA position. The max rated port area is exceeded at the max mechanical stopposition.The position demand input is electrically isolated (up to 500 Vdc) from earthground and the input power potential.The demand signal connections include a shield connection tied to earth ground.Use of a shielded twisted pair is recommended. See cautionary note in nextsection.

Driver Fault Output
The GS3/LQ Driver provides one status output to show that the driver andactuator are functioning normally.This connection is a relay contact, rated for 2 A resistive at 28 Vdc. The relay isenergized to show OK status and is de-energized to indicate a fault or shutdownstatus.Three connections (NO-Com-NC) are provided.

Warranty: 12 months.
Lead time: 1-2 working days.
Terms of payment:T/T and Western Union.
Courier partners: DHL, UPS, TNT, FedEx and EMS.
Technical specification, manuals and data sheets

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