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505/Vantage overspeed setpoint - Knowledgebase / Turbine Articles - Woodward Technical Support

505/Vantage overspeed setpoint

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The Reduced Overspeed Setpoint –

- When Use Reduced Overspeed SP is pressed – the Overspeed trip setpoint will immediately switch to this value (if you are currently above this setting, unit will TRIP
                Thus – always adjust the Reduced Overspeed Setpoint to the desired SP first

- Reduced OS SP is not used when performing an external OS trip – it is only used to prove the control response to the internal TRIP setting, without having to uncouple the drive
               the External OS trip procedure requires the unit be taken to maximum Governor speed before allowing that the unit to proceed with that test
                External test requires taking the unit to & over the actually OS setting

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