Toshiba VF-S9 manual Frequency priority selection, Automatic frequency switching

Page 95

E6580757

6.5Frequency priority selection

6.5.1Using a frequency command according to the particular situation

: Frequency setting mode selection : Frequency priority selection

• Function

Use the above parameters to select the command to be used for frequency setting, and to assign priority to one of the two types of input frequency reference signals.

• Combination of the and parameters

• Switching via terminal board input

■Parameter setting

Title	Function	Adjustment range	Default setting

		0: Terminal board
	Frequency setting mode selection	1: Operation panel	2
		2: Internal potentiometer

6

■Parameter setting

Title	Function	Adjustment range	Default setting

		0: VIA/II, VIB
		1: VIB, VIA/II
		2: External switching
		(FCHG enabled)
	Frequency priority selection	3: External contact UP/DOWN	0
		4: External contact UP/DOWN
		(Setting retained even if the
		power is turned off)
		5: VIA/II + VIB

The VIA terminal and II terminal cannot be used at the same time.

1) Automatic frequency switching 1

Frequency priority selection parameter (Default setting)

= 0: Terminal board is selected.

First priority is assigned to analog input terminals VIA/II, and second priority to analog input terminals VIB. When the input to VIA/II with first priority becomes null, control will be switched automatically to VIB with sec- ond priority.

F-11

Image 95

Contents Tosvert VF-S9 Contents E6580757 Iii Explanation of markings Safety precautionsMeanings of symbols Safety precautionsGeneral operation Wiring Transportation ‚ InstallationOperations Maintenance and inspection When retry function is selected inverterAttach warning labels DisposalII. Introduction FeaturesMandatory Read firstCheck product purchase Contents of the product code Outside view Names and functionsTerminal board cover Charge lampE6580757 2022PL Main circuit and control circuit terminal boardsVFS9-2022PM/2037PM VFS9-4007PL ∼ 4037PL 2015PMVFS9-2055PL/2075PL 4055PL/4075PL See 2.3.2 for details on all terminal functions How to open the front terminal board coverMotors Loads that generate negative torque Braking a motor when cutting off power supplyExtremely low loads and low inertia loads Occurrence of instabilityInverter capacity Power factor improving capacitorsInverters Protecting inverters from overcurrentMCCBn+1 INVn What to do about leak currentEffects of leak current across ground Circuit interupting fuseSupply PowerRemedies Ffects of leak current across linesUse the electronic thermal built into the inverter Not examples for resistance to fire or explosion InstallationInstallation environment Continuous operation this may result in fireConsult with Toshiba about these measures Installation location How to installInverter Type Cabinet must be ventilated and cooledInstalling more than one unit in a cabinet Connection equipment Preventing radio noise Control and main power supplyWiring Standard connections This diagram shows a standard wiring of the main circuit Standard connection diagram 1 sink common CCVF-S9 Standard connection diagram 2 source common P24Connections with peripheral equipment Power supply and motor connectionsDescription of terminals Main circuit terminalsMain circuit Control circuit terminals sink logicBy jumper JP302 switching Full scale DC am Input Standard default setting 0~10Vdc input Internal imped~60Hz60Hz setting frequency Put. Standard default setting output cur 1mA full-scale dcDuring protection function operation Multifunction programmable relay contact= 1, 30Vdc-1A, 250Vac-1A cos φ = At resistance load Output Detects the operation of the inverters 30Vdc-1AInput Common Output Logic switching/voltage-current output switching jumper Operations Main circuit How to operate the VF-S9Wiring MotorE6580757 Mccb Motor Monitor display selection Is set to Adjustment rangeSimplified Operation of the VF-S9 How to set the frequency How to start and stopPotentiometer Setting the frequency using the operation panelExample of operating a run from the panel Moves the frequency downE6580757 VF-S9 has the following three monitor modes Setting monitor mode Mode for setting inverter parametersStatus monitor mode Mode for monitoring all inverter status Basic VF-S9 operationsSetting monitor mode How to set parametersPress the Enter key to save the changed maximum frequency How to set the basic parametersKey and the key to select How to set extended parametersKey to change the dynamic braking selection from Search and resetting of changed parametersExample of parameter setting How to search and reprogram parameters How to program setup parameters Parameters that cannot be changed while running Returning all parameters to standard default settingCommand mode selection Set , and and can Pressing the Enter key displays Key operated LED display OperationKey or the key to change the set value. To return to Set automatic acceleration/deceleration to or Setting acceleration/deceleration timeBasic parameters Automatic acceleration/decelerationDeceleration time Seconds Manually setting acceleration/deceleration timeParameter setting Title Function Adjustment range Acceleration time SecondsAutomatic torque boost Increasing starting torqueAuto Automatic torque boost and V/F control mode selectionSet V/F control mode selection to 0 V/F constant If auto-tuning error Appears, see 6.13Automatic function setting Setting environmental protectionSetting parameters by operating method Automatic environment settingVIA/II UP/DOWN Title Function Adjustment range Selection of operation modeCommand mode selection Frequency setting mode selection Command mode selectionMeter selection Meter adjustment Meter setting and adjustmentPreset-speed operation Connect meters as shown below Adjustment scale with meter adjustment parameterResolution Example of 4-20mA programmed output for details, seeTion Is set to Standard default settingAdjusting the meter in inverter stop state Default settingForward/reverse run selection Setting valuesParameter setting Selecting forward and reverse runs operation panel onlyUpper limit frequency Lower limit frequency Maximum frequencyUpper limit and lower limit frequencies Maximum frequencyBase frequency 25 ∼ 400 Hz Base frequencyBase frequency Selection Selecting control modeControl mode selection TimeSetting for fans and pumps Constant torque characteristics general method of useThis gives steady torque for stable runs Setting V/F control selection Automatic torque boostIncreasing starting torque Motor constant must be setSomewhat lower Precautions on vector controlEnergy-saving Sorless vector controlTorque boost Setting the electronic thermalManual torque boost increasing torque at low speeds Motor electronic thermal pro Title Function Adjustment range Default settingOverload Protection StallDefault setting 100% Press Key to change the parameter to Setting of motor electronic thermal protection levelSetting value Overload protection Overload stall Setting the motor electronic thermal protection levelPreset-speed operation frequencies 8~15 Preset-speed operation speeds in 15 stepsInverter over load characteristics Preset-speed operation frequencies 1~7=6 SS1 Preset-speedS3-CC Terminal functions are as follows Terminal S1Example of 7-step speed operation Using other speed commands with preset-speed commandExtended parameters Low-speed signalLow-speed signal output frequency Low-speed signal output frequency ∼ HzSpeed reach detection band Output of designated frequency reach signalParameter setting of output terminal selection Title Function Adjustment range Setting Output of set frequency speed reach signalSpeed reach setting frequency Speed reach detection band Parameter setting of set frequency and detection bandST standby signal selection Input signal selectionChanging the standby signal function Setting the reset signal Always-active function selection Terminal function selectionKeeping an input terminal function always active on Modifying input terminal functionsConnection method Contact input Sink logic Setting of contact input terminal functionTerminal Title Function Adjustment range Default setting Input terminal selection 3 RST ResetInput terminal selection Example of application ... Three-wire operationCase of three-wire operation Set to Sink logic/source logic inputOutput terminal selection Setting of output terminal functionModifying output terminal functions Examples of applicationBasic parameters Switching motor characteristics via terminal inputSetting of switching terminals Frequency priority selection Automatic frequency switchingContact input. See External switching Fchg enabledSet frequency is cleared automatically after power-off External contact UP/DOWNSetting frequency command characteristics 20mAdc current input adjustment 10Vdc voltage input adjustment VIA, VIBAdjustment with pulse signals Parameter-setting example Sample sequence diagram 1 Adjustment with continuous signalsSimultaneous input Sample sequence diagram 2 Adjustment with pulse signalsFrequency adjustment range Minimum unit of frequency adjustmentFunction Frequency set with the parameter Starting frequency settingOperation frequency Starting frequencyDC braking 2 Run/stop control with frequency setting signalsDC braking DC braking time 20.0 sec Jog run modeJog run frequency Jog run stopping pattern Jog run setting Jump frequency Jumping width Jump frequency 3 Jumping width Jump frequency jumping resonant frequenciesPWM carrier frequency Preset-speed operation frequency 8 to∼ Preset-speed operation frequency 8 to Random modeAuto-restart control selection Trip-less intensificationAuto-restart Restart during coasting DC braking during restart Restarting motor during coasting Motor speed search functionApplication Regenerative power ride-through controlRegenerative power ride-through control If momentary power failure occursRetry selection Canceling conditionsRetry function Dynamic braking selection Braking resistor operation rate Dynamic regenerative brakingSeparate-type optional resistor with thermal fuse Connecting an external braking resistor optionalParameter setting Title Function Setting the braking resistor operation rate Overvoltage limit operation 12.5 Avoiding overvoltage trippingMinimum resistances of connectable braking resistors To the base frequency So that no Output voltage adjustment/Supply voltage correctionOutput voltage unlimited 100.0 Conducting PI controlExternal connection 100.0 Integral gainTypes of PI control interfaces Setting PI controlAdjusting the PI control gain level Gain adjustment parameterAdjusting analog command voltages See .2 for details of the setting method Setting motor constantsSelection 1 Setting by automatic torque boost Set the auto-tuning parameter toRameters Auto-tuning Application of individual settings To the actual operation Perform adjustments according to the actual operationAcceleration time 3600 s Deceleration time 3600 sLinear acceleration/deceleration Acceleration/deceleration patternsSelection using parameters Switching to acceleration/decelerationProtection functions Setting motor electronic thermal protectionInverter trip retention selection Setting current stallInverter trip retention Stall prevention levelEmergency DC braking time External input trip stop mode selectionExternal trip stop via terminals Is set to Emergency DC braking, also setEmergency stopping from the operation panel Output phase failure detectionOutput phase failure detection mode selection Failure detection signal generated FL relay deactivatedInput phase failure detection mode selection Input phase failure detectionControl mode for small current Level flows for more than Specified time Title Function Adjustment rangeDisabled Enabled Over-torque trip/alarm level ∼ 250 % Over-torque tripNo trip Over-torque Detection signalNo trip Over-torque detection Pre-alarm signal Output terminal function 12 OT Over-torque detectionMeter bias Undervoltage trip15.10 4-20mA dc calibration Undervoltage trip selectionSetting methods Prohibition of change of parameter settingsExamples of setting Prohibition of change of parameter settingsFree unit selection Resetting methodChanging the display unit to A/V/min-1 Unit selectionDisplay in percentage terms Display in amperes/volts Standard monitor display selection Changing the display format while power is onStandard monitor mode ⇒ Standard monitor display selection Changing the status monitor display formatCommunication function Common serial Communication function parameters Common serial options Using the RS232C/RS485Setting the communication functions Transmission specificationsNumber, to the host computer Command by communicating independentlyExample of connection for RS485-communication Next data Use the terminal board to branch the cableApplied operation Setting the operation frequencyOperation panel key setting S1 UP S2 Down S3 CLR S1FCHG Preset-speed settingSwitching between external contact UP/DOWN VIA input To switch to VIA/II setting, use the external PNL/TBOperation is controlled in accordance with Setting Switching between analog setting and preset-speed settingSignal Voltage signal Setting by means of a remote input deviceTerminal board operation Setting the operation modeOperation, inverter stop Case of three wire operation Set toEnable to run at HD on Eration holding S1 terminal set toOperation from an external input device S2 PNL/TB VIA VIBOFF LED Display of trip information Display of trip informationExample of call-up of trip information E6580757 About the EMC directive How to cope with the CE directiveTaking measures to satisfy the CE/UL directive Measures to satisfy the EMC directive Single-phase 200V class Example of wiringPlate. Refer to the .1 for earth cable sizes About the low-voltage directiveMeasures to satisfy the low-voltage directive Inverter satisfies the low-voltage directivePeripheral devices Selection of wiring materials and devicesSelection of wiring devices Magnetic contactor in the secondary circuit Installation of a magnetic contactorMagnetic contactor in the primary circuit Optional external devices Installation of an overload relayActor effective for external surge suppression Effect Reactor type Power factor Harmonics Suppression200V-3.7kW Improvement Other model Or less Input AC reactor DC reactorUP/DOWN key, Monitor key, and Enter key Model RKP001Z Ward/reverse switch Model CBVR-7B1Parameter writer Model PWU001Z Extension panelInput AC re Actor DevicesDCL Noise filter Devices External dimensions and connections Foot MountedDevices External dimensions and connections Braking Resistor Communica Devices External dimensions and connections ParameterWriter Exten Sion panelOther Basic parameters Table of parameters and dataUser parameters Four automatic functionsInput/output parameters Extended parametersVIB, VIA/II Frequency parameters0213 VIB input point 400 Frequency Frequency Down Operation mode parameters Protection parameters Torque boost parametersAcceleration/deceleration time parameters Communication parameters Operation panel parametersTable of input terminal functions 1/3 Default settings by inverter ratingST+PNL/TB Table of input terminal functions 2/3Table of output terminal functions 1/2 Table of input terminal functions 3/3POL Table of output terminal functions 2/2Order of precedence of combined functions Standard specifications SpecificationsModels and their standard specifications Specification Outside dimensions and mass Outside dimensions and massPlate Fig.ATrip causes/warnings and remedies Before making a service call Trip information and remediesProblem Possible causes Remedies Overvoltage during Problem Possible causes Remedies Small-current opera Process of initializa Values Restoring the inverter from a trip If the motor does not run while no trip message is displayed How to determine the causes of other problems How to cope with parameter setting-related problems Regular inspection Inspection and maintenanceCall the local sales agency Periodical inspectionCheck points Check itemsReplacement of expendable parts Keeping the inverter in storage Standard replacement cycles of principal partsMaking a call for servicing Warranty Disposal of the inverter Toshiba Corporation