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Toshiba VF-S9 manual 1.4.2, Inverters, Protecting inverters from overcurrent, Inverter capacity

Models: VF-S9

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1.4.2

E6580757

		ured in some other way, the overcurrent trip may be activated because of the locked rotor current when
		the brake goes into operation. Circuit configuration 2 uses low-speed signal RY to turn on and off the
		brake. Turning the brake on and off with a low-speed signal may be better in such applications as ele-
		vators. Please confer with us before designing the system.
	1.4.2	Inverters
1	Protecting inverters from overcurrent

The inverter has an overcurrent protection function. However because the programmed current level is set to the inverter's maximum applicable motor, if the motor is one of small capacity and it is in opera- tion, the overcurrent level and the electronic thermal protection must be readjusted. If adjustment is necessary, see 5-14 in Chapter 5, and make adjustments as directed.

Inverter capacity

Do not operate a large capacity motor with a small capacity (kVA) inverter even with light loads. Current ripple will raise the output peak current making it easier to set off the overcurrent trip.

Power factor improving capacitors

Power factor improving capacitors cannot be installed on the output side of the inverter. When a motor is run that has a power factor improving capacitor attached to it, remove the capacitors. This can cause inverter malfunction trips and capacitor destruction.

Inverter

Remove the power factor improving capacitor and surge absorber

Power factor improving capacitor

Operating at other than rated voltage

Connections to voltages other than the rated voltage described in the rating label cannot be made. If a connection must be made to a power supply other than one with rated voltage, use a transformer to raise or lower the voltage to the rated voltage.

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Toshiba VF-S9 manual 1.4.2, Inverters, Protecting inverters from overcurrent, Inverter capacity

Contents

Instruction Manual 1-phase 200V class 0.2 2.2kW 3-phase 200V class 0.2 15kW3-phase 400V class 0.75 15kW 2000 VerE6580757 ContentsE6580757 E6580757 Explanation of markings I. Safety precautionsMeanings of symbols Safety precautionsE6580757 General operationDanger Danger Transportation ‚ InstallationWiring DangerE6580757 OperationsDanger DangerE6580757 When retry function is selected inverterMaintenance and inspection DangerWarning Functions pro- grammed for retry I DisposalAttach warning labels WarningFunctions pro- grammed for restart2. Simple operation FeaturesII. Introduction 1. Built-in noise filter1.1 Check product purchase 1. Read first1.2 Contents of the product code 1.3.1 Outside view 1.3 Names and functionslock screws Charge lampTerminal board cover Parameter writer Extension panel RS485/RS232C Terminal board coverSide Top warning label Note Wiring hole Cooling finVentilation slits Name Plate Bottom1.3.2 Main circuit and control circuit terminal boards VFS9S-2002PM ∼ 2015PMVFS9-2022PM/2037PM VFS9-4007PL ∼ 4037PLScrew hole of EMC plate VFS9-2110PM/2150PM 4110PL/4150PLPull and lift the front terminal board cover out toward you 1.3.3 How to open the front terminal board coverRemove the screw at the right hand side of the front cover 1.4.1 Motors Comparisons with commercial power operationAdjusting the overload protection level 1.4 Notes on the applicationLoads that generate negative torque Braking a motor when cutting off power supplyExtremely low loads and low inertia loads Occurrence of instabilityProtecting inverters from overcurrent Power factor improving capacitors1.4.2 Inverters1 Effects of leak current across ground 1.4.3 What to do about leak currentDisposal Inverter Remedies2 E ffects of leak current across lines 1.Use the electronic thermal built into the inverter RemediesRemedies Danger 1.4.4 InstallationInstallation environment 5cm 5cm Ambient temperature of 50 C or less model of 5.5kW or more How to install DangerInstallation location Ambient temperature of 40 C or less model of 3.7kW or lessPanel designing taking into consideration the effects of noise Calorific values of the inverter and the required ventilationInstalling more than one unit in a cabinet Danger 2.1 Cautions on wiring2. Connection equipment DangerDanger Control and main power supplyWiring Preventing radio noiseDanger 2.2 Standard connectionsVF-S9 2.2.1 Standard connection diagram 1 - sink common CCJP302 2.2.2 Standard connection diagram 2 - source common P24VF-S9 communicationsConnections with peripheral equipment Power supply and motor connections2.3 Description of terminals 2.3.1 Main circuit terminalsSINK SOURCE 2.3.2 Control circuit terminals sink logicMain circuit ＋24VPage JP301 ＋5V +24V+24V Sink logic negative common/source logic positive common logic switching of input output terminalsLogic switching/voltage-current output switching jumper Danger 3. Operations3.1 How to operate the VF-S9 Page W/T3 MCCB R/L1 S/L2 T/L3U/T1 V/T220mA Current signal 4 ∼or voltage signal to VIA-CC 0 ∼ Main circuit3.2 Simplified Operation of the VF-S9 2 Start and stop using external signals to the terminal board 3.2.1 How to start and stop3.2.2 How to set the frequency 1 Start and stop using the operation panel keysFrequency setting 2 Setting the frequency using the operation panel3 Setting the frequency using external signals to the terminal board Example of operating a run from the panelSetting frequency using voltage signals 0~10V. For more detailed information on adjustments, see Setting monitor mode Standard monitor modeThe standard inverter mode. This mode is enabled when inverter power goes on4.1 How to set parameters Saves the changed value of the parameter setting 4.1.1 How to set the basic parametersSwitches to the setting monitor mode Selects parameter to be changed Reads the programmed parameter setting Changes the parameter setting4.1.2 How to set extended parameters Example of parameter setting 4.1.3 Search and resetting of changed parametersE6580757 How to search and reprogram parametersSetup parameters 4.1.4 How to program setup parametersRated capacity ratio of motor to inverter 4.1.6 Returning all parameters to standard default setting4.1.5 Parameters that cannot be changed while running be changed while the inverter is runningE6580757 Steps for returning all parameters to standard default settingAutomatic acceleration/deceleration 5.1 Setting acceleration/deceleration time5. Basic parameters 5.1.1 Automatic acceleration/decelerationTime s 5.1.2 Manually setting acceleration/deceleration timemanual setting Output frequency HzAutomatic torque boost 5.2 Increasing starting torque2 Increasing torque manually V/F constant control automatic torque boost and V/F control mode selectionThe VF-S9 inverter is set to this control mode by factory default Set V/F control mode selection to 0 V/F constantAutomatic function setting 5.3 Setting environmental protection5.4 Setting parameters by operating method Automatic environment settingCan be operated by a momentary push-button. HD operation holding is assigned to the terminal S3. A self-holding of operations is made in the inverter by connecting the stop switch b-contact to the S3 termi Command mode selection 5.5 Selection of operation modeCommand mode selection Frequency setting mode selectionMeter selection Meter adjustment 5.6 Meter setting and adjustment5 Preset-speed operation Frequency meter Meter frequency meter default setting Adjustment scale with meter adjustment parameterResolution Example of 4-20mA programmed output for details, seeDefault setting 5.7 Standard default settingAdjusting the meter in inverter stop state Forward/reverse run selection Setting valuesParameter setting 5.8 Selecting forward and reverse runs operation panel onlyUpper limit frequency Lower limit frequency 5.9 Maximum frequency5.10 Upper limit and lower limit frequencies Maximum frequencyFrequency setting signal 5.11 Base frequencyBase frequency Parameter settingParameter setting 5.12 Selecting control modeV/F control mode selection 2 Setting for fans and pumps 1 Constant torque characteristics general method of useMotor constant must be set 3 Increasing starting torqueMotor constant must be set happen, set V/F control mode selection⇒ For details, see selection 3 in 6 Precautions on vector control5 Energy-saving Motor constant must be setTorque boost 5.14 Setting the electronic thermal5.13 Manual torque boost - increasing torque at low speeds 10 ∼ 1 Setting the electronic thermal protection characteristics selectionmotor electronic thermal protection level Parameter settingThe motor overload protection start level is fixed at 30Hz Setting of electronic thermal protection characteristics selectionSetting of motor electronic thermal protection level Press the ENTER key to display the parameter setting. Standardvalid, ⋅ invalid Using a VF motor motor for use with inverterSetting selection of electronic thermal protection characteristics Setting the motor electronic thermal protection levelPreset-speed operation frequencies 8~15 5.15 Preset-speed operation speeds in 15 steps2 Inverter over load characteristics Preset-speed operation frequencies 1~7E-23 E6580757same time 3 Using other speed commands with preset-speed commandExample of 7-step speed operation 6.1 Input/output parameters 6.1.1 Low-speed signalLow-speed signal output frequency 6. Extended parametersSpeed reach detection band 6.1.2 Output of designated frequency reach signalParameter setting of designated frequency and detection band Parameter setting of output terminal selectionParameter setting of output terminal selection 6.1.3 Output of set frequency speed reach signalSpeed reach setting frequency Speed reach detection band Parameter setting of set frequency and detection bandParameter setting 6.2 Input signal selection6.2.1 Changing the standby signal function 6 ST standby signal selection4 Standby on when ST is off 6.2.2 Setting the reset signal1 Standby on when ST is on 2 Standby always on Default settingAlways-active function selection 6.3 Terminal function selection6.3.1 Keeping an input terminal function always active ON 6.3.2 Modifying input terminal functionsThis function is activated when the input Setting of contact input terminal functionConnection method 1 A-contact input Sink logic 2 Connection with transistor outputInverter internal Example of application ... Three-wire operation3 Sink logic/source logic input InverterOutput terminal selection 3 FLA/B/C Setting of output terminal function6.3.3 Modifying output terminal functions Output terminal selection 1 RY-RC Output terminal selection 2 OUTBase frequency Torque boost Motor electronic-thermal protection level 6.4.1 Switching motor characteristics via terminal inputSetting of switching terminals 6.4 Basic parameters6.5 Frequency priority selection 6.5.1 Using a frequency command according to the particular situationFrequency setting mode selection Frequency priority selection 1 Automatic frequency switching6 VIA/II + VIB 2 Automatic frequency switching3 External switching FCHG enabled 4 External contact UP/DOWNVIB input point 1 setting Frequency UP response time 6.5.2 Setting frequency command characteristicsVIA/II input point 1 setting VIA/II input point 1 frequency VIA/II input point 2 setting VIA/II input point 2 frequencyAdjustment with continuous signals Parameter-setting example 1 0-10Vdc voltage input adjustment VIA, VIB2 4-20mAdc current input adjustment 3 Setting frequency via external contact input only when = , = orAdjustment 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 adjustment6.6.1 Starting frequency Starting frequency setting6.6 Operation frequency Operation starting frequency Operation starting frequency hysterisis 6.6.2 Run/stop control with frequency setting signals6.7 DC braking 6.7.1 DC brakingJog run frequency Jog run stopping pattern 6.8 Jog run modeSet frequency jog run settingNormal operation frequency setting signal input terminalJump frequency 3 Jumping width 6.9 Jump frequency - jumping resonant frequenciesJump frequency Jumping width Jump frequency Jumping width 6.11 PWM carrier frequency 6.10 Preset-speed operation frequency 8 to∼ Preset-speed operation frequency 8 to Random modeAuto-restart control selection 6.12 Trip-less intensification6.12.1 Auto-restart Restart during coasting Input voltage Motor speed F-CC 1 Auto-restart after momentary power failure Auto-restart function2 Restarting motor during coasting Motor speed search function 3 DC braking during restartRegenerative power ride-through control 6.12.2 Regenerative power ride-through control6.12.3 Retry function Dynamic braking selection Braking resistor operation rate 6.12.4 Dynamic regenerative brakingConnecting thermal relays and an external braking resistor 1 Connecting an external braking resistor optional2 Setting the braking resistor operation rate Overvoltage limit operation 6.12.5Avoiding overvoltage tripping 4 Minimum resistances of connectable braking resistorsvoltage exceeding the 6.12.6 Output voltage adjustment/Supply voltage correctionOutput voltage adjustment Base frequency voltage when operating a special motor with low induced voltagePage 1 External connection 6.12.7 Conducting PI controlProportional/integral control PI control Proportional gain Integral gain2 Types of PI control interfaces 3 Setting PI control4 Adjusting the PI control gain level P-gain adjustment parameter5 Adjusting analog command voltages I-gain adjustment parameterSet the auto-tuning parameter to 6.13 Setting motor constantsAuto-tuning Slip frequency Motor primary constant Selection 1 Setting by automatic torque boostF-37 Selection 3 Setting vector control and manual tuning independentlyE6580757 Set the slip frequency for the motor. A higher slip frequency reduces motor slipping correspond Deceleration time Acceleration/deceleration 1 and 2 switching frequency6.14 Acceleration/deceleration patterns and acceleration/deceleration Acceleration time Deceleration time Acceleration time1 Linear acceleration/deceleration Acceleration/deceleration patternsSwitching to acceleration/deceleration Motor electronic thermal protection level 6.15.1 Setting motor electronic thermal protection6.15 Protection functions Inverter trip retention selection 6.15.2 Setting current stall6.15.3 Inverter trip retention Stall prevention level1 External trip stop via terminals 6.15.4 External input trip stop mode selectionExternal input trip stop mode selection Emergency DC braking time 2 Emergency stopping from the operation panel 6.15.5 Output phase failure detectionOutput phase failure detection mode selection Small current trip/alarm detection current 6.15.6 Input phase failure detection6.15.7 Control mode for small current Input phase failure detection mode selection6.15.8 Over-torque trip Over-torque trip selection Over-torque trip/alarm levelOver-torque trip/alarm detection time Over-torque trip/alarm level hysterisisF-48 2 Output terminal function 20 POT Over-torque detection pre-alarm1 Output terminal function 12 OT Over-torque detection E6580757Meter bias 6.15.9 Undervoltage trip6.15.10 4-20mA dc calibration Undervoltage trip selectionSetting methods 6.16.1 Prohibition of change of parameter settingsExamples of setting Prohibition of change of parameter settingsFree unit selection Resetting method6.16.2 Changing the display unit to A/V/min-1 Unit selectionInput DC voltage An example of setting for displaying the motor speed or load speedStandard monitor display selection Changing the display format while power is onStandard monitor mode ⇒ Standard monitor display selection 6.16.3 Changing the status monitor display formatData transfer speed Parity Inverter number Communication error trip time6.17 Communication function Common serial Communication function parameters Common serial options 6.17.2 Using the RS232C/RS485Setting the communication functions Transmission specificationsExample of connection for RS485-communication 7. Applied operation 7.1 Setting the operation frequencyfor this Use the parametersS2 S3 CC PP VIB I VIA CC E6580757 Terminal board 7.2 Setting the operation modeE6580757 E6580757 E6580757 E6580757 Display of trip information 8.2 Display of trip informationOutput terminal FL Example of call-up of trip informationE6580757 9.1.1 About the EMC directive 9.1 How to cope with the CE directive9. Taking measures to satisfy the CE/UL directive E6580757 9.1.2 Measures to satisfy the EMC directiveExample of wiring Measures to satisfy the low-voltage directive 9.1.3 About the low-voltage directive9.1.4 Danger 10.1 Selection of wiring materials and devices10. Peripheral devices Selection of wiring devices Magnetic contactor in the secondary circuit 10.2 Installation of a magnetic contactorNotes on wiring Magnetic contactor in the primary circuit2 DC reactor 10.3 Installation of an overload relay10.4 Optional external devices 5 Foot-mounteddistribution system Function and purpose actor External dimensions and connectionsDevices Input AC reFig.B Fig.AFig.C H1Mounting Page Parameter writer Extension panelCommunication Converter Four automatic functions 11. Table of parameters and data11.1 User parameters 11.2 Basic parametersInput/output parameters 11.3 Extended parametersis bottom of paragraph Frequency parameters5 Set the parameter to or ,function ofE6580757 E6580757 Operation mode parametersE6580757 Torque boost parametersAcceleration/deceleration time parameters Protection parametersE6580757 Operation panel parametersCommunication parameters Table of input terminal functions 1/3 Default settings by inverter ratingTable of input terminal functions 2/3 K-10 Table of input terminal functions 3/3Table of output terminal functions 1/2 E6580757K-11 Table of output terminal functions 2/2E6580757 Order of precedence of combined functions 12.1 Models and their standard specifications 12. SpecificationsModel of 5.5kW or more from - 10 C to 50 C C above 50 C Note 3. Side-by-side installationNote 1. Above 40 C Remove the protective seal from the top of VF-S9 Outside dimensions and mass 12.2 Outside dimensions and mass¿5 Outline drawing VFS9Fig.A plate13.1 Trip causes/warnings and remedies 13. Before making a service call Trip information and remediesContinued E6580757Continued overleaf E6580757Continued With a parameter, you can choose between trip-on and -offE6580757 13.2 Restoring the inverter from a trip YES NO 13.3 If the motor does not run while no trip message is displayedE6580757 13.4 How to determine the causes of other problemsHow to cope with parameter setting-related problems Danger 14. Inspection and maintenance14.1 Regular inspection Danger 14.2 Periodical inspectionCheck points Check itemsReplacement of expendable parts 14.4 Keeping the inverter in storage Standard replacement cycles of principal parts14.3 Making a call for servicing 15. Warranty E6580757 16. Disposal of the inverterTOSHIBA INDUSTRIAL PRODUCTS MANUFACTURING CORPORATION TOSHIBA CORPORATION