Motor Overload | Quinny 65040-AB guide

Section VIII - Power$ync II™ Operation

MOTOR OVERLOAD

The control monitors the status of the main motor and fan motor overloads. Should one of the overloads detect an amp draw that is too high, it will shut the compressor down and the control will log the event.

CONTACTOR WELDED

The control monitors the status of the motor starters during compressor operation. If the control sends a signal to the starter to disengage and it does not receive confirmation of this, is will trip an alarm and log this message. This may indicate a failed contactor or it may indicate a fault in the wiring to the auxiliary contacts.

WYE CONTACTOR NOT CLOSED

This message will be logged if the control sends a start signal to the Y-D contactor motor starter and fails to receive confirmation that the contactor engaged.

M1 AUX CONTACT OPENED

This message will be logged if the controller detected that the auxiliary contacts on the main contactor opened up, when they should be closed. This could indicate a loose wire, or chattering contactor.

WYE AUX CONTACT CLOSED

This message is logged in Y-D starter configurations, when the controller sees an input from the auxiliary contacts when they should be open.

CONTACTOR FAILURE

This message will be logged if the control sends a start signal to the main and/or fan motor starter and fails to receive confirmation that the contactor engaged.

COMM TO RELAY BD FAILS

This indicates that communication between the microprocessor board and the relay board has been interrupted.

PKG DISCHARGE RTD FAILURE

The package discharge RTD is the temperature probe between the compressor package and the system lines. The control will log this message if it fails to receive a valid signal from this probe.

Quincy Compressor® - QSD™	67

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Quinny 65040-AB manual Motor Overload

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 Precautions Spare Parts Ordering Information Safety Alert Symbols Section II Description Compression Cycle and Air Flow General Description Lubricating Fluid System Cooling SystemMoisture Separator Water-cooled Capacity Control System Electrical System Shutdown Conditions Back-up Control Safety Sensors IndicatorsMain Power on Light High Discharge Air Temperature Lights Section II Description Moving the Unit to the Installation Site Section III InstallationReceiving Location Piping Connections Piping Fit-up Manual Shutoff Valve Guards Electrical Water Quality Water Flow Fan Rotation Fluid Level Prior to Starting Section IV Operating ProceduresStarting the Compressor Stopping the Compressor Normal Operation Temperature 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 Filter Input Shaft Seal Preparation for New Seal Installation Airend Sealing System Seal Installation Pressure Switch Section VII Service AdjustmentsPressure Switch Back-up Operating Mode Adjusting Pressure Switch This page Intentionally Left Blank Introduction to Power$ync Section Viii Power$ync II OperationBack-up Mode Operation Do not switch modes with power on the compressor Auto Dual Time Delay Multiple Machine Operational ModeSingle Machine Operational Modes Continuous Run Network Load Delay Time Pressure Settings Connecting Cable to the Power$ync II Circuit Board Network Installation Rocker Switch Settings Network Voltage Tests on Power$ync II Systems Network SetupUP/DOWN DEADBAND, F1 EDIT, Enter Return Start-up Power-up Displays Section Viii Power$ync II Operation U19 Memory Failure Contact Your Service Representative Compressor in Back-up Mode Deadband Data Error Press F1 to Clear U19 Data Checksum Error Press F2 to UpdateU19 Data not Initialized Press F2 to Initialize Filter Needs Servicing Please Replace AS Soon AS Possible Operational Displays Start-up DisplaysAdditional Sensors Compressor is Starting Compressor is Unloaded Minutes Left to Shutdown Compressor is UnloadedProgrammed Shutdown Mode and Pressure Displays Compressor Settings and Maintenance DisplaysCompressor Mode of Operation Auto Dual Timed Stop Press F1 Press F2 Press F1 to change the load and unload pressures Read Pressure Settings pages 34-35 before Machine ID Setup Please Wait Network Configuration in ProgressMachine ID for this Compressor Press Enter to Accept Value Sequence Network Data Before setting or changing a sequence, readUP/DOWN POSITION, F1 EDIT, Enter Return UP/DOWN Machine ID, Enter Return Network Configuration Menu DAY Monday SEQ AbcdDAY Monday SEQ To clear a particular sequence from the memory, press F1 Reset Service Hourmeters Filter Service HourmetersCompressor Hourmeter Menu Compressor Hourmeters Intake Filter Hours Fluid Filter Hours Reset to Press Enter to Return Press F1 to Reset Fluid Filter Hours Press Enter to ReturnPress F1 to Reset Fluid Hours Press Enter to Return Fluid Hours Reset to Press Enter to Return Time Menu To View Current Time Compressor Maintenance Menu Compressor Control TestTo SET Time and Date Time and Date Menu Current Time on this Control Compressor Control Test Menu Unload Valve Test Press F1 HorsepowerUnload Press Fluid Press Modem Baud Rate Setup Unit Configuration DateCompressor Diagnostic Menu View Shutdown LOG Network Diagnostic Section Viii Power$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 Messages Motor Overload STG 2 Discharge RTD Failure Control log has no entries at that point Probable Causes Corrective Action Failure to Start Section IX Troubleshooting Unscheduled Shutdown Section IX Troubleshooting Probable Causes Corrective Action Unscheduled Shutdown High Discharge Air Temperature Frequent Air Cleaner CloggingProbable Causes Corrective Action Low Air Delivery Frequent Fluid Filter Clogging Compressor does not Unload when there is no Air Demand Too Rapid Cycling Between Load and Unload Excessive Fluid in Buffing Air Vent Bowls Pressure Relief Valve ExhaustingWater in Buffing Air Vent Bowls Excessive Fluid in Gearbox Vent Bowl High Interstage Pressure Low Delivery Pressure Microprocessor Will Not Display Messages Erroneous Displays Interval Action Section X- Maintenance Schedule Daily Operating Record Quincy Compressor QSD Quincy Compressor QSD