Quinny 65040-AB manual Back-up Control, Shutdown Conditions

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Section II - Description

Back-up Control

The QSD™ Power$ync II™ controller is supplied with a back-up control for emergency operations if the electronic control is inoperative. The Back-up Mode is a simplified system of operations and is not intended for long-term operation. When Back-up Mode is selected all power is removed from the Power$ync II™ controls, thus the indicator lights located on the annunciator panel will be inoperable. The back-up control uses a PLC for the logic circuit. In the Back-up Mode, the PLC monitors several different areas of the unit to ensure they are in the proper ranges for normal operation.

!CAUTION

Under no condition should the QSD™ be switched from Power$ync II to Back-up Mode or vice versa without first removing all power to the unit.

!CAUTION

Always inspect for component failure before operating in Back-up Mode. Operating the unit with faulty components may void warranty.

Shutdown Conditions

NOTE

If one of the following conditions occurs at any time the unit will immediately shutdown. The unit should not be restarted until the problem has been corrected.

•The fluid pressure does not reach 15 PSI within five

(5)seconds at start-up or does not maintain pressure during normal operation.

•The HAT’s are open at start-up or at any time during operation.

•The drive or fan contactor overloads trip.

•The coolant flow switch does not close within five

(5)seconds after start-up.

•The interstage pressure switch does not open within five (5) seconds after start-up (Back-up Mode only).

•The second stage pressure switch does not open within five (5) seconds after start-up (Back-up Mode only).

•Both the interstage and second stage pressure switches are open at start-up (Back-up Mode only).

•The second stage pressure switch does not close within five (5) seconds after the load/unload pressure switch opens and does not reopen within five (5) seconds after the load/unload pressure switch closes (Back-up Mode only).

!WARNING

High voltage could cause death or serious injury. Disconnect all power supplies before opening the electrical enclosure or servicing.

Quincy Compressor® - QSD™	13

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Contents QSD Series Page Table of Contents Section V Maintenance or Service Preparation Standard Warranty Dimensional Data air-cooled Dimensional Data water-cooled Section I General Safety PrecautionsSpare Parts Ordering Information Safety Alert SymbolsSection II Description Compression Cycle and Air Flow General DescriptionWater-cooled Cooling SystemLubricating Fluid System Moisture SeparatorCapacity Control System Electrical System Shutdown Conditions Back-up ControlHigh Discharge Air Temperature Lights IndicatorsSafety Sensors Main Power on LightSection II Description Location Section III InstallationMoving the Unit to the Installation Site ReceivingPiping Connections Piping Fit-up Manual Shutoff ValveGuards ElectricalWater Quality Water FlowFan Rotation Fluid LevelStopping the Compressor Normal Operation Section IV Operating ProceduresPrior to Starting Starting the CompressorTemperature Readings Water-cooled Pressure ReadingsStopping the Compressor Emergency Section V Preparing for Maintenance or Service This page Intentionally Left Blank Safety Fluid SpecificationsSection VI Servicing Fluid Life Air FilterInput Shaft Seal Preparation for New Seal InstallationAirend Sealing System Seal InstallationAdjusting Pressure Switch Section VII Service AdjustmentsPressure Switch Pressure Switch Back-up Operating ModeThis page Intentionally Left Blank Do not switch modes with power on the compressor Section Viii Power$ync II OperationIntroduction to Power$ync Back-up Mode OperationContinuous Run Multiple Machine Operational ModeAuto Dual Time Delay Single Machine Operational ModesNetwork Load Delay Time Pressure SettingsConnecting Cable to the Power$ync II Circuit Board Network InstallationRocker Switch Settings Network Voltage Tests on Power$ync II Systems Network SetupUP/DOWN DEADBAND, F1 EDIT, Enter Return Start-up Power-up DisplaysSection Viii Power$ync II Operation U19 Memory Failure Contact Your Service Representative Compressor in Back-up ModeDeadband Data Error Press F1 to Clear U19 Data Checksum Error Press F2 to UpdateU19 Data not Initialized Press F2 to Initialize Filter Needs Servicing Please Replace AS Soon AS Possible Compressor is Starting Start-up DisplaysOperational Displays Additional SensorsCompressor is Unloaded Minutes Left to Shutdown Compressor is UnloadedProgrammed Shutdown Press F2 Compressor Settings and Maintenance DisplaysMode and Pressure Displays Compressor Mode of Operation Auto Dual Timed Stop Press F1Press F1 to change the load and unload pressures Read Pressure Settings pages 34-35 beforeMachine ID Setup Please Wait Network Configuration in ProgressMachine ID for this Compressor Press Enter to Accept Value UP/DOWN Machine ID, Enter Return Before setting or changing a sequence, readSequence Network Data UP/DOWN POSITION, F1 EDIT, Enter ReturnNetwork Configuration Menu DAY Monday SEQ AbcdDAY Monday SEQ To clear a particular sequence from the memory, press F1 Intake Filter Hours Filter Service HourmetersReset Service Hourmeters Compressor Hourmeter Menu Compressor HourmetersFluid Hours Reset to Press Enter to Return Press F1 to Reset Fluid Filter Hours Press Enter to ReturnFluid Filter Hours Reset to Press Enter to Return Press F1 to Reset Fluid Hours Press Enter to ReturnTime and Date Menu Current Time on this Control Compressor Maintenance Menu Compressor Control TestTime Menu To View Current Time To SET Time and DateFluid Press HorsepowerCompressor Control Test Menu Unload Valve Test Press F1 Unload PressNetwork Diagnostic Unit Configuration DateModem Baud Rate Setup Compressor Diagnostic Menu View Shutdown LOGSection Viii Power$ync II Operation ETOL00 FTOL00 Network Connection Data Confidence Indicator is lit, the indicator will remain lit Modem INITIALIZATION** InitF1 to EDIT/ENTER to Accept Value Compressor has Shut Down Emergency Stop Button WAS Pressed Sequence Data Error Press F1 to Clear Schedule Data Error Compressor has Shut Down Take Corrective Action Back-up Mode until all faults have been corrected Inlet Temp Fluid Pressure STG 1 OUT Temp STG 2 in Temp Emergency Stop Pressed Shutdown Log MessagesMotor Overload STG 2 Discharge RTD Failure Control log has no entries at that point Probable Causes Corrective Action Failure to Start Section IX TroubleshootingUnscheduled Shutdown Section IX TroubleshootingProbable Causes Corrective Action Unscheduled Shutdown Frequent Fluid Filter Clogging Frequent Air Cleaner CloggingHigh Discharge Air Temperature Probable Causes Corrective Action Low Air DeliveryCompressor does not Unload when there is no Air Demand Too Rapid Cycling Between Load and Unload Excessive Fluid in Gearbox Vent Bowl Pressure Relief Valve ExhaustingExcessive Fluid in Buffing Air Vent Bowls Water in Buffing Air Vent BowlsHigh Interstage Pressure Low Delivery PressureMicroprocessor Will Not Display Messages Erroneous DisplaysInterval Action Section X- Maintenance ScheduleDaily Operating Record Quincy Compressor QSD Quincy Compressor QSD