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Toshiba VF-A7 instruction manual Over-ride, Additive over-ride

Models: VF-A7

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Page 154

6.27 Over-ride

 ：Over-ride addition input selection

 ：Over-ride multiplication input selection

・Function

These parameters are used to adjust reference frequencies by means of external

Title	Function	Adjustment range	Default setting
		: Disabled
		: VI(voltage input) / II(current input)
		: RR(volume / voltage input)
		: RX(voltage input)
	Over-ride	: RX2(voltage input)(optional)
	addition input	: Operating panel input	
	selection	: Binary/BCD input(optional)	
	[Hz]	: Common serial communication option(FA01)
		: Serial communication RS485(FA05)
		: Communication add-on cassette option(FA07)
		: Up/down frequency
		: Pulse input #1(optional)
	Over-ride	: Disabled
	Over-ride	: VI(voltage input) / II(current input)
	multiplication	: VI(voltage input) / II(current input)
	multiplication	: RR(volume / voltage input)	
	input	: RX(voltage input)	
	selection	: RX(voltage input)
	selection	: RX2(voltage input)(optional)
	[%]	: RX2(voltage input)(optional)
	[%]	: 
		: 

The override functions calculate output frequency by the following expression:

 [%]

Output frequency ×（1＋）＋  [Hz] 100

1) Additive over-ride

In this mode, an externally input over-ride frequency is added to reference frequency.

[Ex1: RR(reference), VI(over-ride frequency)] [Ex2: RX(reference), VI(over-ride frequency)]

Output frequency [Hz]



(

Over-ride (VI input)

010V

Over-ridden frequency

RRinput )

(reference)

Output frequency [Hz] Over-ridden frequency

Forward	
Over-ride	(	RR input
(VI input)		(reference)
(VI input)			)
	0	10V
		10V
	Reverse

F-63

Image 154

Toshiba VF-A7 instruction manual Over-ride, Additive over-ride

Contents

Basic Parameters Extended ConnectionPeripheral Units Limited applications PrecautionsSymbols Meaning MarkingHandling in general Transportation・Installation Wiring About operation About disposal of inverters When selecting the retry mode Applicable to invertersAbout inspection and maintenance Sticking warning labelsFeatures Ⅱ． PrefacePackage Name plate Type Form Specification code200V-3.7kW SpecialPanel description Indication number Panel indicationIndication alphabet Page Grounding terminal VFA7-2185P, 2220P VFA7-4185P, 4220PVFA7-2300P, 4300P VFA7-4370P1～4550P1 Page Page Detaching the terminal board front cover P24Operation in low speed ranges Comparison with commercial power operationAdjustment of overload protection level High-speed operation at a frequency of 60 Hz or overLoad producing negative torque Braking of a motor after power shutoffMotor with a braking system Inverter capacity Power factor improving capacitorOver-current protective function Use of an inverter at a voltage other than the rated oneInfluences of leakage currents and measures against it Power supply InverterMeasures to be taken Power supply Installation environment Resistor Installation Installation placeHeat radiation area Required Motor Inverter Applicable Calorific valueFor closed-type Page Heat-sink going out attachmentsimple type Normal attachment Heat-sink going out attachment Simple typeConnection Inverter, or the inverter could cause a shock or a firePrevention of radio noise Motor Main circuit Standard connection diagram for sink logicminus commonStandard connection Control panelControl Circuit R20 R46 Control＊１ R20 R46 R41Explanation of terminals Main circuit terminalsR0, S0 R46, R41, R20, S20 Terminal symbolInverter internal circuit R20 S20 P0, PA, PB, PC, PA1,PB1,PR1Control circuit terminals sink logicminus common Input Function Electrical Inverter internal Output Default setting Operation frequency commandOutput Default setting Output current. Connect a 1mAdc Connect a 1mAdc full-scale ammeter or aCommon Input Switching logicInput Common P24 Output Common CC Common Programmable Inverter ControllerSerial RS485 communication connector Motor is at a standstill, or you could get a shock Could get a shockControl modes of the VF-A7 inverter Sensor vector control Optional1Operation from the terminalexternal signals Simple operation of the VF-A7 1 Speed control modeExample of typical connection ）Setting the frequency by voltage signals 0 to 10 Frequency settingSpeed setting mode selection parameter  at  ）Setting the frequency by a current signal 4 to 20 mA）Setting the frequency by voltage signals 0 to +/-10Vdc ）Setting the frequency by voltage signals 0 to 10 VdcSpeed setting mode selection parameter  at  Operation from the control panel ［Control panel operation］：Start the motorSelecting a stop mode with the control panel Example of control panel operationSimple operation of the VF-A7 2 Torque control mode Setting a control modeMode setting parameter  is set at Running When the motor is out of operation. If the monitor displayS4 Control mode Switching RR switching Polarity of torque command Torque control mode Operation from the terminalexternal signalTorque command Start/stop）Torque setting by means of voltage signals 0~10 Vdc Torque setting by means of current signals 4 to 20 mAdcTorque setting by means of voltage signals 0~10 Vdc ）Torque setting by means of a volume control Others Torque command Setting the start and stop modesSelecting a torque command mode Operation from the control panelＲＵＮ：Starts the motor Set the torque commandExample of control panel operation Ｓｔｏｐ：Stops the motorTorque control mode Setting parameters Setting monitor modeSpeed control mode Status monitor mode Setting monitor modeHow to set basic parameters Basic parameter Procedure for setting a basic parameterBasic parameter list How to set extended parameters Procedure for setting an extended parameterDisplay mode setting parameter  is set at Example of parameter settingWhen the motor is out of operation.If the monitor Running frequencySearching for a parameter and changing its setting Parameters that cannot be changed during operation Basic parametersOptional analog terminal #1 meter adjustment FM terminal meter selection FM terminal meter adjustmentAM terminal meter adjustment Optional analog terminal #2 meter adjustment ＝ Setting the acceleration and deceleration timesAutomatic acceleration/deceleration ･ FunctionAcceleration/deceleration enabled by pressing key Manually setting the acceleration and deceleration timesChange the parameter setting to  automatic Time sIncreasing starting torque/ energy-saving operation mode  ：Automatic V/f mode settingIf you fail to make the setting for vector control VF-A7 inverter has been set to this control mode by default Selecting an operation mode Preset speed operation Speed setting mode Operation commandMode selection Title Function Set value  Speed settingPanel stop pattern ・Function Setting and calibrating metersTitle Function Adjustment range Terminal FM-related parametersResolution Calibrating a meter when the inverter is out of operationFrequency display mode.If the monitor display mode setting By setup, before the needle of meter begins to swayReturn the parameter setting to  output current display Set the parameter at  fixed output for meterHz standard setting  =  Factory default setting ：Standard setting mode selection Hz standard setting  = Trip clear  =  Factory default setting  = Reset of user-defined parameters  =  Clearing accumulating operation time  = ：Forward/reverse selection Parameter settingMaximum frequency ：Maximum frequency：Upper limit frequency ：Lower limit frequency Upper and lower limit frequenciesBase frequency  ：Base frequency #1Constant torque characteristic Normal way of use Control mode selection：Motor control mode selection Motor controlTo increase the starting torque Setting suitable for fans and pumps：The torque Boost rate is adjusted AutomaticallyChange the parameter setting to Sensorless vector Value. Default setting Constant torqueControl by pressing the key ※100% adjustment value 200V class 200V,400V class To set the V/F characteristic arbitrarily5-point setting       This control mode involves the setting of the motor constant Speed setting Switching between speed control and torque control： Motor control mode selection  ～ Communication add-on cassette option Torque reference Common serial communication option  Binary/BCD inputoptionalManual boost  ～ % Setting the electronic thermal protective functionParameter Title Function Adjustment range Explanation of terms Setting the electronic thermal protective function Setting the motor overload protection level #1  Overload stallSoft stall Overload reduction start-up  ～ Hz Setting of motor overload start level ×1.0 ×0.6 Inverters overload protective characteristic Inverter overload characteristicMotor 150%-overload time limit  Setting preset-speed frequencies Preset-speed operation 15 speedsStart/stop Preset-speed #1 Forward run commandReverse run command Preset-speed #2Setting the operation mode ・Output terminal setting Frequency signalsLow-speed signal ・Function・Function Putting out signals of arbitrary frequenciesP24-OUT2 Standard Selection of input signalsChanging standby signal function Always-ONReverse ［ Disabled Terminal board has no priority ］Forward =Stop terminal board has priority Enabled Priority command from terminal board Operation commandSetting value Jog run Forced JOG forward rotation Binary/BCD signal selectionExpansion TB option unit ：Binary/BCD signal selectionExpansion TB option unit  Input terminal selection #8S4Keeping an input terminal function always active on Signal on completion of acceleration/deceleration OUTSelection of terminal functions Changing input terminal functionsRefer to 7.2.2 for details Changing output terminal functionsResponse times of input/output terminals Refer to 7.2.3 for detailsS1：V/f switching #1 S2：V/f switching #2 Setting of switching terminalsBasic parameters #2 S1V/f switching #1 S2V/f switching #2 Parameters selected OFF has priority Speed/torque command gain and biasUsing two types of frequency speed commands  has priorityCommand selected with  Frequency reference Setting frequency command characteristicsSetting torque reference characteristics Start-up frequency and End frequency Operating by means of reference signalsOperation frequency 3 0Hz dead band frequencyDC injection braking DC injection brakingBraking under normal conditions Motor shaft fixing control ：Motor shaft fixing control Forward/reverse DC braking priority control =OFFLED display  lights  lights Zero-speed stop mode selection ：Zero-speed stop mode selection  ～ Hz ～ Hz Jog run ：Jog run frequency  ：Jog stop control Example of jog runJump frequency Jumping resonant frequencies Preset-speed #8～15 ～  ：Preset-speed #8～#15 Refer to 5.14 for details ：PWM carrier frequency PWM carrier frequencyTrip-less enhancement Set the control method of Auto-restart Set the mode of Auto-restartRestart after a momentary power failure Restart of coasting motor Motor speed search function1Case ＝ Adaptation for elevator applicationsCase = Regenerative power ride-through control / Deceleration stopSet the property of Auto-restart Case =～Retry function  ：Retry selection Dynamic braking resistor capacity Dynamic regenerative braking To urgently stop the motorAn internal braking resistor for 3.7kW model and smaller  ～ ΩClass Capacity kW An external braking resistor optionalAny value 120W 70Ω 200 120W 40Ω 400 120W 150Ω 100Supply When using a braking resistor without thermal fuse PBR resistor capacity  ～ Ω Any valueConnectable braking resistors and their minimum resistances Selection of braking resistor option and braking unitType Adjusting the output voltage and voltage compensation Avoiding over-voltage tripProhibiting the reverse operation  ：Reverse-run prohibitionDead band Frequency Drooping controlDrooping Gain  Speed at the drooping gain   ～ HzCommercial power/inverter switching Function for crane/hoist Timing chart PID control  ～  ：Preset speed operation modesSpeed feedback/positioning control Set the auto-tuning ＝ Automatic tuning execution Setting motor constantsSelection 1 Setting by the automatic V/f mode Refer to 5.2 for details of this settingMotor is out of operation. If the monitor display momde Setting parameter  is set at Running frequencyChange the parameter setting to  Automatic tuning  Press the Enter key to activate the parameter Setting the rating of the motor Setting motor constants ①Slip frequency gain Examples of setting auto-tuning Inverter VFA7 2037PL Motor 7kW, 4P, 60Hz Selection～20mAdc ⇒ II terminal Torque controlTorque reference ～10Vdc ⇒ RR terminal ：Torque reference filter Voltage signal 0 ～± 10VdcTorque reference filter ⇒ RX terminalSetting of forward speed limit level Speed limits in torque control modeSetting with the control panel Setting of reverse speed limit levelTorque bias and load sharing gain Setting by means of external signalsSelection of external signals ―― 40 ～20mA Voltage signals Current signals × ＋Setting of power running torque SettingPower running /regenerative torque limit Setting of regenerative torqueLimiting the torque with external signals Positive/negative torque limits Regenerative Power runningPower running Regenerative  Torque Limit #1Positive torque limit  RRvolume/ voltageNegative torque limit  Torque Limit Selection RegenerativeMotor needs to be speeded up to Slowly in weak-field areas where itSecondary acceleration/deceleration Suitable for the operationSwitching of acceleration/deceleration #1, 2, 3 Selection with parametersOutput freq. Hz Setting freq Acc/dec switching #1 Acc/dec switching #2Acceleration/deceleration patterns Parameter settingMinimum acceleration/deceleration times  ：Acceleration/deceleration lower limitPattern run Monitor displayed during pattern run ＜Basic operating＞  ～ Output frequency Hz Setting frequency Step trigger signal ④ ：select pattern group #4 Parameter settingProtection functions Motor over road protection－level adjust / motor typesSetting of current stall Inverter trip holdingMotors 150%-overload time limit Emergency stopOverload reduction start-up frequency Emergency stop by terminal operationAction at low currents Detection of output phase failureOver-torque trip  ：Cooling fan control mode Cooling fan control mode selectionCumulative operation time alarm  ：Cumulative operation time alarm settingUnder-voltage trip System-supporting sequence B-timerOver-voltage stall protection level UV stall levelSpecial analog input Over-ride Additive over-rideOutput frequency = Reference × 1 + Over-rideVI input % Output frequency = Reference + Over-ride VI input HzOutput frequency = Reference + Over-rideVI input Hz Output frequency = Reference × 1 + Over-ride %Meter output Setting of meter outputsSetting of optional meter outputs Pulse output to meters ：Current / voltage display mode Prohibiting the change of parameter settings ：Prohibition of parameter setting Control panel parametersDisplay of the rotating speed of the motor Display the motor speed and the load speed ：Frequency free unit magnification Display of the speed of the load ：Selection of panel V/f1, 2, 3 or Changing items displayed in status monitor modeSwitching basic parameters Time  0.01 sSelecting a control panel stop pattern Resetting the inverter from the control panel Panel reset function  ：Panel stop patternDrooping control in panel operation mode Canceling PID control in panel operation modeSetting a torque command in panel operation mode Override in panel operation modeRestricting or prohibiting key operation SettingCanceling methods  ：Panel operation prohibition＜Computer link＞ Communication function RS485/common serialCommon serial optional device ＜Inter-drive communication＞Terminal block enabled Setting of operation command common serial Operation command ～ Mode selection Using the RS485 port fitted as standard ：Wiring ：Data （Master→slave）：Wiring ：Data （Host→Inverter）Inter-drive communications  Setting of operation command RS485Setting of speed reference RS485 Operation with External Signal External OperationControl terminal board Setting of contact input terminal functionFunctions of input terminals in case of sink logic Connection methodInverter Example of use Push-type operation stopAcc/dec, V/f, torque limit #2 Table of contact input terminal function settingsAcc/dec, V/f, torque limit #3 Low speed signal Setting of output terminal functionsSymbol Title Function Adjustment Default setting Functions of output terminals in case of sink logicParameter setting OFF All the alarms above are cancelled Or detectedCompletion of positioning On Positioning has been completed Output of the designated data in 7 bitsOver travel On Over running OFF in positive logicResponse time setting Setup of input/output terminal operation timeSetup of response time Analog input filterSetting of analog input terminal functions Setup of external speed command analog signalControl terminal board Title Function Adjustment range  Setup by analog input signals RR terminal～ Setup by analog input signals VI/II terminal 10V VI terminalSetup by analog input signals RX terminal Status monitor mode Status monitorInformation on input terminals Total accumulated operation hours Information on output terminalsType of connected option  Changing contents of status monitor indication Changing indication of status with power onChanging status monitor function 01kW FE30 Output power 1kW Indication in trip status Details of indications of trip statusExamples of reading out trip data Indication of alarm, pre-alarm, etc Selection of wiring equipment Failure, short-circuit or electric leakSelection of wiring equipment Inverter modelInstallation of electromagnetic contactor Electromagnetic contactor in the primary circuitInstallation of overload relay Electromagnetic contactor in the secondary circuitSorts of separate-type options Application and functions of optionsVF-A7 Motor end surge RS-232C ⑬ communication converter unit Model RS2001Z RS-232C Communication Converter cable Selection table of separate-type options Functions of optional add-on cassettes Optional add-on cassettesTable of optional add-on cassettes Table of optional add-on cassettes＊ In a set with SBP001Z ②Expansion TB option unit＊ In a set with SBP002Z Table of board options Installation of board optionBoard options Functions of board optionsCase Before installing optional add-on cassette or board optionMandatory Case 2-B. When PG feedback function is mot used Case 2-A. When PG feedback function is usedPrepare for installing according to 9.7.1, 1 to Preparation is not neededBasic parameters 1/2 Basic parameters 2/2 Extended parameters Frequency signalInput signal selection Terminal function selection 1/2Terminal response time setup Terminal function selection 2/2Point Setting Basic parameters #2Speed/torque reference gain/bias setup 1/2 Braking Speed/torque reference gain/bias setup 2/2Operation frequency OperationJumper frequency Preset speed operation frequency 8- to 15-stage speedTripless intensification setup 1/2 PWM carrier frequencyControl Tripless intensification setup 2/2For lift 1/2 PID control Commercial/inverter switching functionFunctions for lift 2/2 Speed feedback/positioning controlPreset-speed operation mode Vector controlMotor constant Torque controlSpeed/torque reference gain/bias setup #21/2 Torque limitSpeed/torque reference gain/bias setup #22/2 Secondary acceleration/deceleration Pattern run selection Disabled, 1 EnabledPattern run mode Patterned operation canceled during stop Preset-speed #1 operation time ～8000 s / min Preset-speed #1 operationContinuation mode Preset-speed #2 operation time DittoProtection functions Over-ride Special analog inputMeter output 1/2 Meter output 2/2 Control Panel parametersCommunication function1/2 Communication function2/2 Reservation area［Contents of monitor indications］ Monitor FM/AM/pulse output function selection Input terminal function setting 1/2 104 105 ［Input terminal function setting 2/2］= = =～ = 106 107 VI/II terminal priority 108 109［Output terminal function setting 1/2］［Output terminal function setting 2/2］ Default settings PWMStandard specifications by types Standard specifications by types large capacity types Common specifications Causes FaultProcess, upper/lower limits DigitExternal dimensions and mass External dimensions and massDrawing C Drawing D Outline drawingsDrawing a Drawing B Drawing E Drawing FDimensions for heat-sink going out attachmentsimple type Also reset the  Indication Contents Expected causes Countermeasures･ Decrease setting value ･ Extend acceleration time #1  Main RAM fault ･ Reset the inverter Initial read-error  Main ROM faultPresence or absence of parameter trip can be selected ･ If undervoltage is detected, setSetting signal apart from each Method of resetting causes of trip ～ Caution! ～Is LED on Is input power Input power Correct?Make a service call RUN/STOP keyHow to check other troubles Measures against trouble with parameter settingInspection method Regular inspectionCheck points By feel touchPoints of inspection Dealer for replacement of partPeriodical inspection ･Dont replace any component partReplacement of expendable parts Standard period of years to replace main component partsWhen making a service call When retaining the inverter out of operationWarranty Plastics Blasting during incinerationDisposing manner