Quinny 65040-AB Section IX Troubleshooting, Probable Causes Corrective Action Failure to Start

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Section IX - Troubleshooting

Probable Causes:	Corrective Action:

Failure to Start:

POWER NOT TURNED “ON”	TURN THE POWER ON BY CLOSING THE MAIN DISCONNECT
	SWITCH OR CIRCUIT BREAKER.
BLOWN CONTROL CIRCUIT FUSE	REPLACE FUSE. FIND AND CORRECT CAUSE.
	CHECK FOR SHORTED OUT LIFT VALVE SOLENOID.
FAULTY START SWITCH	CHECK THE SWITCH FOR MALFUNCTION OR LOOSE CONNECTIONS.
LOOSE WIRE CONNECTIONS	CHECK ALL WIRING TERMINALS FOR CONTACT AND TIGHTNESS.
POWER FAILURE	CHECK POWER SUPPLY AND TRANSFORMER FUSES.
	CHECK POWER SUPPLY, POWER SUPPLY CABLES AND RIBBON
	CABLE GOING TO DISPLAY BOARD.
FAULTY TRANSFORMER	CHECK SECONDARY VOLTAGE ON TRANSFORMER.
LOW VOLTAGE	CHECK THE VOLTAGE AT YOUR ENTRANCE METER. COMPARE
	THAT READING TO A READING TAKEN AT THE MOTOR TERMINALS.
	USE THESE TWO READINGS AS A BASIS FOR LOCATING THE
	SOURCE OF LOW VOLTAGE.

SAFETY CIRCUIT SHUTDOWN RESULTING FROM HIGH DISCHARGE AIR TEMPERATURE

FAULTY HIGH AIR TEMPERATURE SWITCH

THERMAL MOTOR OVERLOAD RELAYS

TRIPPING

FAULTY CONTROL RELAY

(WATER-COOLED ONLY)

FAULTY COOLANT SHUT-OFF VALVE

(COOLANT FLOW SWITCH CONTACTS ARE

OPEN)

SETUP MEMORY FAILURE

SETUP DATA NOT INITIALIZED

CORRECT THE SITUATION IN ACCORDANCE WITH THE INSTRUCTION IN THE HIGH DISCHARGE AIR TEMPERATURE SECTION OF THIS TROUBLESHOOTING GUIDE. RESTART THE COMPRESSOR.

CHECK HAT SWITCH. CONTACT AN AUTHORIZED QUINCY SERVICE TECHNICIAN FOR REPAIRS.

DETERMINE AND CORRECT THE CAUSE OF THE MOTOR OVERLOADED CONDITION. RESET OVERLOAD RELAY.

REPLACE RELAY.

ENSURE ADEQUATE WATER SUPPLY PRESSURE AND FLOW IS AVAILABLE AND SUPPLY VALVE IS OPEN. VERIFY THERE IS NOT EXCESSIVE BACKPRESSURE ON THE DRAIN SIDE OF THE WATER SYSTEM. REPLACE FAULTY WATER FLOW SWITCH.

TURN POWER OFF AND THEN BACK ON.

CHECK POWER CABLE AND CONNECTION BETWEEN DC POWER SUPPLY AND MICROPROCESSOR.

CONTACT AN AUTHORIZED QUINCY SERVICE TECHNICIAN TO CHECK FOR MICROPROCESSOR FAILURE AND CHECK FOR IMPROPER VOLTAGE FROM THE DC POWER SUPPLY.

INITIALIZE SETUP DATA AS DESCRIBED ON PAGE 37 .

70	Quincy Compressor® - QSD™

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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 Safety Precautions Section I GeneralSafety Alert Symbols Spare Parts Ordering InformationSection II Description General Description Compression Cycle and Air FlowCooling System Lubricating Fluid SystemMoisture Separator Water-cooledCapacity Control System Electrical System Back-up Control Shutdown ConditionsIndicators Safety SensorsMain Power on Light High Discharge Air Temperature LightsSection II Description Section III Installation Moving the Unit to the Installation SiteReceiving LocationPiping Connections Manual Shutoff Valve Piping Fit-upElectrical GuardsWater Flow Water QualityFluid Level Fan RotationSection IV Operating Procedures Prior to StartingStarting the Compressor Stopping the Compressor Normal OperationTemperature 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 Air Filter Fluid LifePreparation for New Seal Installation Input Shaft SealSeal Installation Airend Sealing SystemSection VII Service Adjustments Pressure SwitchPressure Switch Back-up Operating Mode Adjusting Pressure SwitchThis page Intentionally Left Blank Section Viii Power$ync II Operation Introduction to Power$yncBack-up Mode Operation Do not switch modes with power on the compressorMultiple Machine Operational Mode Auto Dual Time DelaySingle Machine Operational Modes Continuous RunPressure Settings Network Load Delay TimeNetwork Installation Connecting Cable to the Power$ync II Circuit BoardRocker Switch Settings Network Voltage Tests on Power$ync II Systems Network SetupUP/DOWN DEADBAND, F1 EDIT, Enter Return Power-up Displays Start-upSection Viii Power$ync II Operation Compressor in Back-up Mode U19 Memory Failure Contact Your Service RepresentativeDeadband Data Error Press F1 to Clear U19 Data Checksum Error Press F2 to UpdateU19 Data not Initialized Press F2 to Initialize Filter Needs Servicing Please Replace AS Soon AS Possible Start-up Displays Operational DisplaysAdditional Sensors Compressor is StartingCompressor is Unloaded Minutes Left to Shutdown Compressor is UnloadedProgrammed Shutdown Compressor Settings and Maintenance Displays Mode and Pressure DisplaysCompressor Mode of Operation Auto Dual Timed Stop Press F1 Press F2Read Pressure Settings pages 34-35 before Press F1 to change the load and unload pressuresMachine ID Setup Please Wait Network Configuration in ProgressMachine ID for this Compressor Press Enter to Accept Value Before setting or changing a sequence, read Sequence Network DataUP/DOWN POSITION, F1 EDIT, Enter Return UP/DOWN Machine ID, Enter ReturnNetwork Configuration Menu DAY Monday SEQ AbcdDAY Monday SEQ To clear a particular sequence from the memory, press F1 Filter Service Hourmeters Reset Service HourmetersCompressor Hourmeter Menu Compressor Hourmeters Intake Filter HoursPress F1 to Reset Fluid Filter Hours Press Enter to Return Fluid Filter Hours Reset to Press Enter to ReturnPress F1 to Reset Fluid Hours Press Enter to Return Fluid Hours Reset to Press Enter to ReturnCompressor Maintenance Menu Compressor Control Test Time Menu To View Current TimeTo SET Time and Date Time and Date Menu Current Time on this ControlHorsepower Compressor Control Test Menu Unload Valve Test Press F1Unload Press Fluid PressUnit Configuration Date Modem Baud Rate SetupCompressor Diagnostic Menu View Shutdown LOG Network DiagnosticSection Viii Power$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 Shutdown Log Messages Emergency Stop PressedMotor Overload STG 2 Discharge RTD Failure Control log has no entries at that point Section IX Troubleshooting Probable Causes Corrective Action Failure to StartSection IX Troubleshooting Unscheduled ShutdownProbable Causes Corrective Action Unscheduled Shutdown Frequent Air Cleaner Clogging High Discharge Air TemperatureProbable Causes Corrective Action Low Air Delivery Frequent Fluid Filter CloggingCompressor does not Unload when there is no Air Demand Too Rapid Cycling Between Load and Unload Pressure Relief Valve Exhausting Excessive Fluid in Buffing Air Vent BowlsWater in Buffing Air Vent Bowls Excessive Fluid in Gearbox Vent BowlLow Delivery Pressure High Interstage PressureErroneous Displays Microprocessor Will Not Display MessagesSection X- Maintenance Schedule Interval ActionDaily Operating Record Quincy Compressor QSD Quincy Compressor QSD