Quinny 65040-AB manual Network Voltage Tests on Power$ync II Systems, Network Setup

Page 39

Section VIII - Power$ync II™ Operation

1B Boards - On 1B boards there is no dip switch to set. Only the termination jumper at J13 needs to be set. This should be in the ON position on the compressor at the end furthest from the network terminator power supply. This is the machine with only 1 cable entering. All other boards should have this jumper in the OFF position.

Network Voltage Tests on Power$ync II™ Systems

Voltage tests at J10 on the 140265-1QD board can be used to do a rough test on network connections.

The top connection should be approximately 2.5-2.9 volts when operation is normal. The lower connection should be about 1.9 volts. The voltage generally drops on the top connection if the terminator, the dip switch or the jumper are incorrect.

Always check the terminator power supply module to see if there is power present in its location and that the voltage output is present as listed on the nameplate.

NOTE

The power outlet for this terminator should be always powered, not tapped from the compressor supply. This is to keep the network properly terminated if one of the compressors is shut off for service.

The primary cause of network faults other than terminator settings, is the use of improper cable to connect the compressors. The wrong cable may work for short range connections, but will definitely not work over longer runs.

Network Setup

For applications that see very little demand change or applications that have demand changes that correspond to the full capacity of selected compressors, these compressors may be networked together.

There are nine positions available for machines in a network (see Compressor Settings and Maintenance Displays, pages 45-58). The unload and load pressure settings function much the same way that the pressure switch settings would in a purely mechanical, multi- machine controller.

There are nine possible electronic pressure switches that can be used to determine compressor load and unload settings. When setting up a sequence, remember that the first machine ID in the sequence will be assigned to the number one pressure setting. The next machine ID to the right will be assigned to the number two pressure setting. A two machine example of this can be easily illustrated as follows:

1>115U 110L 2>113U 108L 3>000U 000L 4>000U 000L 5>000U 000L 6>000U 000L 7>000U 000L 8>000U 000L 9>000U 000L

UP/DOWN DEADBAND, F1 EDIT, ENTER RETURN

The number one position pressure has been set to unload at 115 PSIG and load at 110 PSIG. The number two position has been set to unload at 113 PSIG and load at 108 PSIG. In the sequence ‘AB’, the ‘A’ machine would run at the 110 to 115 PSIG setting and the ‘B’ machine would run at the 108 to 113 PSIG setting. If the sequence were changed to ‘BA’, the ‘B’ machine would run at the 110 to 115 PSIG setting and the ‘A’ machine would run at the 108 to 113 PSIG setting. In order to rotate machines through different pressure settings, sequence changes must be programmed.

!WARNING

Do not set load pressures higher than the full load pressure rating of the compressor. Do not set unload pressures higher than the full load pressure rating of the compressor when compressors are set to run load/no load.

Quincy Compressor® - QSD™

37

 

 

Page 38 Page 40
Image 39
Page 38 Page 40
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
Top Page Image Contents