Manuals / Toshiba / Computer Equipment / Power Supply

Toshiba VF-FS1 instruction manual Output voltage adjustment/Supply voltage correction, Xnx

Models: VF-FS1

1 252

Download 252 pages 5.48 Kb

Page 133

E6581381

6.12.5 Output voltage adjustment/Supply voltage correction

XNX : Base frequency voltage 1

H : Supply voltage correction (output voltage adjustment)

•Function

Base frequency voltage1

The H parameter adjusts the voltage corresponding to the base frequency 1 XN so that no voltage exceeding the XNX set value is put out. (This function is enabled only when H is set to either "0" or "1".)

Supply voltage correction

The H parameter maintains a constant V/F ratio, even when the input voltage decreases. The torque during low-speed operation is prevented from decreasing.

Supply voltage correction: Maintains a constant V/F ratio, even when the input voltage fluctuates.

Limitation of output voltage: Limits the voltage at frequencies exceeding the base frequency. Applied when operating a special motor with low induced voltage.

[Parameter setting]
[Parameter setting]					6
Title	Function	Adjustment range	Default setting
	Base frequency voltage1	50-330 (V) : 200V class	230 (WP/WN type)
			230 (WP/WN type)
XNX			400 (WP type)
XNX		50-660 (V) : 400V class	400 (WP type)
		50-660 (V) : 400V class	460 (WN type)
			460 (WN type)

		0: Supply voltage uncorrected,
		output voltage limited
		1: Supply voltage corrected,
H	Supply voltage correction	output voltage limited	2
	(limitation of output voltage)	2: Supply voltage uncorrected,
		output voltage unlimited
		3: Supply voltage corrected,
		output voltage unlimited

+If H is set to "" or "", the output voltage will change in proportion to the input voltage.

+Even if the base frequency voltage (XNX parameter ) is set above the input voltage, the output voltage will not exceed the input voltage.

+The rate of voltage to frequency can be adjusted according to the rated motor capacity. For example, setting H to "" or "" prevents the output voltage from increasing, even if the input voltage changes when operation frequency exceeds the base frequency.

+When the V/F control mode selection parameter (RV) is set to any number between and , the supply voltage is corrected regardless of the setting of H.

F-37

Image 133

Toshiba VF-FS1 instruction manual Output voltage adjustment/Supply voltage correction, Xnx

Contents

Industrial Inverter Page Meanings of symbols Safety precautionsSafety precautions Explanation of markingsGeneral Operation Wiring Transportation & installationOperations Maintenance and inspection When retry function is selected inverterAttach warning labels DisposalII. Introduction Features Contents  E6581381 Iii Check product purchase Read firstContents of the product Outside view Names and functionsBottom Power circuit terminal board Power circuit and control circuit terminal boardsVFFS1-2004 ∼ 2037PM VFFS1-4004 ∼ 4055PL E6581381 E6581381 Grounding capacitor disconnecting switch and taps AWG Control circuit terminal boardHow to open the front terminal board cover-18.5kW or less How to open the front terminal board cover-22kW or More Motors Low loads and low inertia loads Braking a motor when cutting off power supplyOccurrence of instability Load that produces regenerative torqueBraking motor InvertersMeasures to protect motors against surge voltages Protecting inverters from overcurrentIf power supply distortion is not negligible Power factor correction capacitorOperating at other than rated voltage MCCB1Effects of leak current across ground What to do about the leak currentRemedies ElcbAffects of leakage current across lines Installation environment Installation5cm Standard installation Side-by-side installation How to installOperating motor Calorific Values w Installing more than one unit in a cabinet Page Connection Wiring Control and main power supplyStandard connections Preventing radio noiseStandard connection diagram Standard connection diagram Description of terminals Power circuit terminalsControl circuit terminals Power circuitControl circuit terminals VIB VIAFLB FLAFLC PLC Logic switching Operations Eoqf Simplified Operation of the VF-FS1Hoqf Example of a Eoqf setting procedure How to start and stopStart and stop using the operation panel keys EOQF= Coast stopExample of a Hoqf setting procedure How to set the frequencyExample of operating a run from the panel HOQFFrequency setting Setting the frequency using the operation panel HOQF= or How to operate the VF-FS1 Mccb Page Mode for monitoring all inverter status Setting monitor mode Mode for setting inverter parametersBasic VF-FS1 operations Flow of status monitor mode Basic parameters Extended parameters User parameters How to set parametersChanges the parameter setting Saves the changed value How to set the basic parametersHow to set extended parameters Example of parameter setting Search and resetting of changed parameters I4WHow to search and reprogram parameters ITWCEE Setting a parameter, using the wizard function CWHHTH How Parameters of Quick setting wizard How to use the wizard functionCWJ How to use the history functionJgcf CW Parameters that cannot be changed while runningHow to save/load the user setting parameters Returning all parameters to standard default settingKpkv Page Basic parameters Setting acceleration/deceleration timeAutomatic acceleration/deceleration Methods of setting automatic acceleration/deceleration Manually setting acceleration/deceleration timeCWK Function Adjustment range Default setting UP/DOWN Specifying an operation mode, using parametersEOF UP/DOWN HOFRES PLC VIA VIB OFF Setting mode Switching of commands and references Selection of operation modeCommand mode selection Preset-speed operation Frequency setting mode selectionHoun Meter selection HO Meter adjustment Meter setting and adjustmentHOUN= HounAdjustment scale with parameter HO Meter adjustment ResolutionVF-FS1 HOUN= Adjusting the meter in inverter stop stateVR Default setting Standard default settingProgrammed value E6581381 HT Forward/reverse run selection Operation panel operation Forward/reverse run selection Operation panel operationUpper limit and lower limit frequencies Maximum frequencyHJ Maximum frequency WN Upper limit frequency NN Lower limit frequencyXN Base frequency XNX Base frequency voltage Base frequencyRV V/F control mode selection Selecting control modeSetting for fans and pumps Constant torque characteristicsMotor constant must be set Increasing starting torque+ Motor constant must be set Precautions on vector controlEnergy-saving Operating a permanent magnet motorE6581381 Valid, Invalid Manual torque boost increasing torque boost at low speeds Setting the electronic thermalXD Torque boost Motor electronic thermal protection levelQNO Setting value Overload protection Overload stall Motor 150%-overload time limit H Inverter over load characteristicsUT UT Preset-speed operation frequencies Preset-speed operation speeds in 7 stepsThermal memory selection H UT UTUT UTBelow is an example of 7-step speed operation Low-speed signal output frequency Low-speed signalExtended parameters Input/output parameters Speed reach detection band Output of designated frequency reach signalDesignated frequency Output of set frequency speed reach signalChanging the functions of VIA terminal Input signal selection VIA terminal function selection Keeping an input terminal function always active on Terminal function selectionModifying input terminal functions Setting of contact input terminal function Connection with transistor output Connection method 1 A-contact inputSink Negative logic / Source Positive logic input Modifying output terminal functionsExamples of application Assigning one function to an output terminal Assigning two functions to an output terminalRY RC RY-RC Input terminal function Holding the output of signals in on statusHdry FLA-FLB-FLC Comparing the frequency command valuesBasic parameters Switching motor characteristics via terminal inputFrequency priority selection Setting of switching terminalsAD2 VF2 MOT2 OCS2 OFF Automatic switching by frequency command External switching Input terminal function 38 Fchg enabledSetting frequency command characteristics VIA, VIB terminals 10Vdc voltage input adjustment VIA, VIBSetting of frequency with the input from an external contact Adjustment with pulse signals Parameter-setting example Sample sequence diagram 1 Adjustment with continuous signalsFrequency adjustment range About the setting of the initial up/down frequencyMinimum unit of frequency adjustment About the change of the initial up/down frequencyFine adjustment of frequency setting signal Starting frequency setting 2 Run/stop control with frequency setting signalsOperation frequency Starting frequencyDC braking DC brakingOFF Jump frequency jumping resonant frequencies Bumpless operation selection Bumpless operationPWM carrier frequency 0.75kW 15kW E6581381 Auto-restart Restart of coasting motor Trip-less intensification Auto-restart control selection Motor speed search at starting Restarting motor during coasting Motor speed search function Instantaneous power failure coast stop selection Instantaneous power failure coast stop selection Retry selection Selecting the number of times Retry functionE6581381 Avoiding overvoltage tripping Output voltage adjustment/Supply voltage correction Reverse-run prohibition Canceling the operation command Droop gain  Droop insensitive torque band Droop controlE6581381 External connection Conducting PID controlAdjusting the PID control gain level Setting PID controlTypes of PID control interfaces I-gain adjustment parameter P-gain adjustment parameterAdjusting analog command voltages D-gain adjustment parameterSetting the time elapsed before PID control starts Setting motor constants Setting motor constantsSet the auto-tuning parameter H to Auto-tuning enabled E6581381 Setting motor constants 2 Details E6581381 Selecting an acceleration/deceleration pattern Acceleration/deceleration timeSwitching acceleration/deceleration time 1 E6581381 Protection functions Setting motor electronic thermal protection Stall prevention level Setting current stall Inverter trip retention Inverter trip retention selection Emergency stop Emergency DC braking time Emergency stopExternal trip stop via terminals Emergency stopping from the operation panel Output phase failure detection mode selection Output phase failure detectionControl mode for small current Input phase failure detection Input phase failure detection mode selection Detection of output short-circuit during start-up Detection of output short-circuitOver-torque trip OFF On OFF Cumulative operation time alarm setting Cumulative operation time alarm settingOver-voltage stall protection level Over-voltage stall protection levelUndervoltage trip Undervoltage trip/alarm selectionParts replacement alarms Trip at VIA low level input mode Trip at VIA low level input mode Motor PTC thermal protection Evasion from Overvoltage and Imput phase failure NNWN Forced fire-speed control functionExample of setting Adjustment parametersCalibration of analog outputs Resetting method Prohibition of key operations and parameter settingsOperation panel parameter Current / voltage unit Changing the unit to a An example of setting when HJ is 80 and H is Changing the steps in which the value displayed changes When H is not 0.00, and H is not 0 disabled Free pressing a panel key once Free panel display Changing the display format while power is on Changing the item displayed by default Standard monitor display selection Selection of operation panel stop pattern Integral output powerDisplay of the head of the parameters Selection of operation panel stop patternTitle Error by disconnection Setting of common functionCommunication function Common serial Communication rate Communication function parameters Common serial options E6581381 Setting the communication functions Using the RS485Transmission specifications Example of connection for RS485-communicationWiring Permanent magnetic motors Parameters for optionsPage Applied operation Setting the operation frequencyHOQF HOQFHoqf P24Hoqf PLC VIA SS3 VIB RES RES SC/LC Setting the operation modeRES SC/LC PLC VIA VIB Monitoring the operation status Status monitor modeStatus monitor under normal conditions LEDVIA RES KKPgtt ⇔ Display of detailed information on a past trip Trip code display Display of trip informationDisplay of trip information Example of call-up of trip information Display of trip information at the occurrence of a tripInput terminal KK FE06 OFF Cause of the trip is displayed E6581381 Page Measures to satisfy the standards How to cope with the CE directiveAbout the EMC directive Measures to satisfy the EMC directive Three-phase 400V class About the low-voltage directive Example of wiringCompliance with UL Standard and CSA Standard Compliance with InstallationMeasures to satisfy the low-voltage directive Compliance with ConnectionMotor thermal protection AIC, Fuse and Wire sizesAIC a Peripheral devices Selection of wiring materials and devicesInput current a Selection of wiring devicesMagnetic contactor in the primary circuit Installation of a magnetic contactorMagnetic contactor in the secondary circuit Installation of an overload relayOptional external devices Page 11.1 User parameters Table of parameters and data11.2 Basic parameters Houn UT Input/output parameters Extended parametersFrequency parameters NNWN Operation mode parameters Torque boost parameters Protection parameters Acceleration/deceleration time parameters Operation panel parameters Output parametersCommunication parameters PM motor parameters Default settings by inverter ratingAD2 Table of input terminal functionsOHN LLN Table of output terminal functionsUCN Pidfn Order of precedence of combined functions Models and their standard specifications SpecificationsStandard specifications Common specification Display Outside dimensions and mass Outside dimensions and massFig.A Outline drawingFig.E Trip causes/warnings and remedies Before making a service call Trip information and remediesQR GTT QHH Restoring the inverter from a trip If the motor does not run while no trip message is displayed How to cope with parameter setting-related problems How to determine the causes of other problemsPage Regular inspection Inspection and maintenanceCheck points Periodical inspectionCheck items Replacement of expendable parts Standard replacement cycles of principal parts Keeping the inverter in storage Making a call for servicingPage Warranty Disposal of the inverter Page Toshiba