Motors, Operation in the low-speed area | Toshiba VF-AS1 manual

!	E6581301!

■Example of wiring of each model

!

«VFAS1-2550P, 2750P» «VFAS1-4900PC~4132KPC» «VFAS1-4160KPC~4280KPC»

1

$-! $(./!	Earth cable	PO	PA/+	PO	PA/+ Earth cable!
		PO	PA/+

«VFAS1-4355KPC~4500KPC» !

PO.1

PA/+

PO.2

Earth cable!

1.4Notes on the application

1.4.1Motors

Keep the following in mind when using the VF-AS1 to drive a motor.

Caution

Mandatory

Use an inverter that conforms to the specifications of power supply and three-phase induction motor being used. If the inverter being used does not conform to those specifications, not only will the three-phase induction motor not rotate correctly, but it may cause serious accidents through overheating and fire.

Comparisons with commercial power operation

The VF-AS1 Inverter employs the sinusoidal PWM system to supply the motor. This is why compared to operation

with a commercial power there will be a slight increase in motor temperature, noise and vibration. The main supply

voltage and current will also be distorted due to harmonic distortion while increase the line current.

Operation in the low-speed area

When running continuously at low speed in conjunction with a general purpose motor, there may be a decline in

that motor's cooling effect. If this happens, operate with the output decreased from rated load.

To carry out low-speed operation continuously at the rated torque, we recommend to use a inverter rated motor or

a forced cooled motor designed for use with an inverter. When operating in conjunction with a inverter rated motor, you must change the inverter's motor overload protection level to VF motor use ().

Adjusting the overload protection level

The VF-AS1 Inverter protects against overloads with its electronic thermal overload detection circuits. The

electronic thermal's reference current of the inverter must be adjusted in line with the rated current of the motor

being used in combination.

A-17

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Toshiba VF-AS1 instruction manual Motors, Comparisons with commercial power operation, Operation in the low-speed area

Contents

New High-performance inverter Safety precautions Limits in purpose General Operation Transportation & installation Wiring Reference When retry function is selected Operations Maintenance and inspection II. Introduction Contents 14.3 13.113.2 14.4 24.3 24.124.2 25.1 36.4 36.236.3 36.5 10.6.2 10.610.6.1 12.1 Explanation of the type and form written on the label Contents of the product codeCheck the product Type Form Structure of the main body Names and functions 1 Outside view RUN lamp Mode key MON lampRS485 connector/cover PRG lamp Switch Grounding terminal M5 screw Screw hole for EMC plate Main circuit terminalM5 screw E6581301 VFAS1-4300PL, 4370PL VFAS1-4110KPC VFAS1-4132KPCVFAS1-4160KPC VFAS1-4500KPC Control circuit terminal block is common to all equipment Control circuit terminal blockDetaching the cover For details on all terminal functions, refer to Section E6581301 E6581301 Grounding capacitor switching method 200V! 18.5#22kW 400V! 22kW 200V/400V Class Small E6581301 Installing the DC reactor Motors Comparisons with commercial power operationAdjusting the overload protection level Operation in the low-speed area Method of lubricating load mechanisms Braking a motor when power supply is lostHigh-speed operation at and above 50Hz/60Hz rated frequency Low loads and low inertia loads Inverters Measure to take against leakage Current If power supply distortion is not negligibleDisposal Effects of leakage current across ground Affects of leakage current across supply lines Affects of leakage current by cable lengthRemedies Installation Installation environment How to install Resistors Place far away from VF-AS1 Inverter 5001Without top cover Standard installation Side-by-side installation4001Without top cover 6001Without top cover 4001With top cover F631=0 Ambient temperature ContinuousAmbient temperature 4001Without top cover Output 5001With top cover Carrier frequency Ambient temperature4001With top cover With top cover 6001Without top cover Current E6581301 Installing more than one unit in a cabinet Connection equipment Control and main power supply WiringPreventing radio noise Standard connections Between PO and PC Standard connection diagram sink logic Standard connection diagram sink logic Standard connection diagram sink logic Standard connection diagram source logic Standard connection diagram source logic Standard connection diagram source logic Main circuit terminals Power supply and motor connectionsDescription of terminals Connection with peripheral equipment RES RR/S4 OUT1 PLCVI/I OUT2 FLB +SUFLA FLC Sink logic Source logic1Be sure to short across NO-CC SOURCE! INT/PLC 3 RS485 communication connector Operations Setting/monitor modes VF-AS1 has the following three setting/monitor modes Mccb Simplified operation of the VF-AS1Example of standard connection OFF Frequency setting + RR/S4 CCA+ VI/II + VI/II CCA Setting the frequency using input voltage 0~10VdcSetting the frequency using input voltage 0~±10Vdc + RX CCA Default setting Press the Enter key to display the first extended parameterPress Key to change to Motor starts Panel operationSet frequency Stop the motor Deceleration stop 1 Press the Stop key Selecting a stop mode with the operation panelExample of operation panel control Press the Stop key again Searching and setting parameters Quick mode Easy How to set parameters Setting parameters in the selected quick mode Setting parameters in the standard setting mode Changed parameter search function History function Setting methodsHistory function Function When load is large Setting acceleration/deceleration timeWhen load is small Automatic acceleration/deceleration Increasing starting torque Manually setting acceleration/deceleration timeConstant torque characteristics default setting Automatic torque boost Automatic torque boost and V/f control mode selection If vector control cannot be programmedIncreasing torque manually V/f constant control Frequency Voltage/current Setting on Default Setting parameters by operating methodAutomatic function setting Automatically programmed functions and parameter set values Selection of operation mode Command mode selection Frequency setting mode selectionCommand mode selection RX input VI/II inputRR/S4 input Operation panel input Preset speed operation Set this parameter at terminal board Any setting is validRun/stop Press the RUN and Stop keys On the operation panel Run/stop ON/OFF of terminals F-CC/R-CC Standby connection of terminals ST and CC Or 40~20mAdc Selecting control mode Constant torque characteristics Normal way of useControl mode selection Motor constant must be set Torque boost rate is adjusted automaticallyDecreasing output voltage Output frequency Hz Base frequency Setting of V/f characteristic arbitrarily Setting of V/f control mode selection = V/f 5-point setting Operating a permanent magnet motor Setting of V/f control mode selection = PM controlBase frequency voltage 5-point setting Output voltage VF5 VF4 VF3 VF1 VF2 Precautions on automatic torque boost mode or vector control Manual torque boost Manual torque boost-increasing torque boost at low speedsBase frequency Base frequency Base frequency voltage Maximum frequency Maximum frequencyUpper limit and lower limit frequencies Upper limit frequency Lower limit frequency Setting frequency command characteristics Preset speed operation speeds in 15 steps RR/S4 RR/S4-CC ST-CC OFF Selecting forward and reverse runs operation panel only Forward/reverse run selection Setting the electronic thermal Explanation of terms Press either the key or the key to change the parameter to Using a VF motor motor for use with inverterFirst basic parameter History function is displayed = motor rated current/inverter output rated current x Operation frequency Frequency Setting the motor overload starting levelMotor 150%-overload time limit 01Hz *1 No less than Motor overload Inverter overload characteristics Changing the display unit % to a ampere/V volt Current/voltage unit selection Meter setting and adjustment VF-AS1 Regenerative braking resistance overload factor OLr data Press the Enter key to display the operation frequency Adjustment is complete. and the frequency are displayedPress either Key to select Display returns to its original indications Return the parameter setting to output current display Select the AM terminal meter adjustment by pressing the keyPress the Enter key to switch to the data display mode Display mode. When standard monitor display selection = Gradient bias adjustment of analog monitor output PWM carrier frequency Trip-less intensification Refer to .4.4, Current reduction curve Below 130% Operation and application of the auto-restart function Synchronized acceleration/deceleration signal An example of setting when = Dynamic regenerative braking For abrupt motor stop Connecting an external braking resistor optional External braking resistor with a thermal fuse optional When a using braking resistor without thermal fuse Capacities of 400V-200kW or more Selection of braking resistor option and braking unit VFAS1-4280KPC Minimum resistance of connectable braking resistors 50Hz default setting = Standard default settingFactory default setting 60Hz default setting = Acceleration/deceleration time setting 0.01 to 600.0 sec. = Default setting =Reset of user-defined parameters = Acceleration/deceleration time setting 0.1 to 6000 sec. = Key to change the parameter displayed. Press Automatic edit functionPress Key to select Key to search for parameters in reverse direction Standard setting mode Quick mode/standard setting mode switching function =Quick mode Easy key function Shortcut key function = Operation panel/remote key function =Peak hold function = Connection diagram SW1 set to sink logic P24 OUT1 or OUT2 Low-speed signal Low-speed signal output frequencyLow-speed signal output Inverted Output terminal setting Parameter setting of frequency and detection band Parameter setting of output terminal selection Forward run signal Input signal selectionParameter setting Reverse run signal Valid command Command from the terminal board Output frequency Hz Set frequency Panel key Forward run ST-CCCC Jog run Setting of contact input terminal function Terminal function selectionModifying input terminal functions PLC Connection method 1 a-contact input Servo lock status Using the V/f adjustment function Adjustment rate Basic parametersManual torque boost Base frequency Thermal protection level S1-CC S2-CC Parameters selected V/f 5-point setting 5-point setting VF3 frequency 5-point setting VF3 voltageSwitching with input terminal board = Automatic switching by means of switching frequencies = Priority is given to Command set With Operation frequency DC braking DC braking DC braking start frequency DC braking currentDC braking time Forward/reverse DC braking priority control ~ ~ ~ ~ Motor shaft fixing control E6581301 Operation signal F-CC SW1 set to sink logic Time s Time limit for lower-limit frequency operation Jog run mode ST-CC S3-CC Status monitor mode «Sample sequence diagram 2 Adjustment with pulse signals» Adjustment with pulse signals Parameter-setting example Jump frequency jumping resonant frequencies Jump frequencyJumping width Preset speed operation frequencies Preset speed operation frequency 8 toPreset speed operation frequencies 8 to Trip-less intensification Output Frequency Overvoltage stall protection Voltage Output voltage adjustment Supply voltage correction Drooping control Reverse run prohibition Reverse run prohibition selectionOutput voltage waveform selection Gain1 Light-load high-speed operation function Braking functionCreeping time Hoisting torque bias input Creepinjg frequency Acceleration/deceleration suspend function Reverse run Forward run Commercial power/inverter switching Stall control Timing chart example PID control PID control switching Process lower limitPID control feedback control signal selection Differential D gain Process value DC0~10V RR/S4 External connectionTypes of PID control interface CCA VI/II Fast response Setting the PID controlAdjust PID control gain Low proportional gain Adjusting the analog command voltage and current Setting motor constants Stop position control function Base frequency Voltage Rated capacity SettingsYES Not set correctly. Check their Setting auto-tuning Examples of setting the motor constants Exciting strengthening coefficient Stall prevention factor Torque control Reference selectionSpeed limit torque=0 band E6581301 Torque limit Power Regenerative Running RX-CCA RR/S4 -CCA, VI/II-CCA 10V +10VVI/II-CCA Torque is h eld at a limit level even Torque limit levelAfter the mechanical brake is released Stall prevention control switching Power running stall continuous trip detection timeRegenerative braking stall prevention mode selection Stall prevention function Current and speed control adjustment Max output voltage modulation rate Fine adjustment of frequency setting signal Operating a synchronous motor Acceleration/deceleration Acceleration S-pattern lower limit adjustmentDeceleration S-pattern lower limit adjustment Deceleration time Acceleration time Acceleration/deceleration switching signal Set frequency Pattern operation E6581301 Pattern operation finished OFF signal Preset speed mode~ Preset speed operation modes Function selection Setting of stall prevention level Stall prevention level Protection functions Emergency stop Emergency DC braking control time Output phase failure detection Output phase failure detection mode selection Function OFF ON! OFF Cooling fan control selection Cumulative operation time alarm setting Braking answer waiting time 33.18 VI/II analog input wire breakage detection level Rush current suppression relay activation time DC voltage Rush current suppression relay Refer to 5.19 for details Ground fault detection selection Override Disconnection detection of remote keypad Ex.1 = VI/II input, = disabled Ex.2 = VI/II input, = disabled Adjustment parameters FM terminals setting example SW2 0-10V/0-20mA sideLarge gain Resetting method Operation panel parameter Value displayed Monitor-displayed or parameter-set frequency When is not , and is disabled When is not , and is notAn example of setting When is , and is Example of setting Tracing functions Trace selection Trace cycle Trace data To acquire trace data at the time of triggering = Acquisition of trace data Integrating wattmeter Trace data communication numberRelationship between pointer and data Send waiting time 2-wire RS485 Communication function Alarm No action Wire RS485No action Common to 2-wire RS485 and 4-wire Alarm TOSHIBA, Modbus E6581301 ~ ~ Response data INV → host Wiring Data Master → Slave Data Host →!INV Alarm No action Trip Toshiba Modbus E6581301 My function Traverse functionInput function target 11~ My function selection VEC007Z ETB003ZETB004Z DEV002Z Case of control panel operation command input External operationCase of control panel operation the frequency Input terminal function selection RR/S4 Preset speed Functions of input terminals in case of sink logicLI1~LI8 Inverter Input terminal Programmable controller COM Acceleration/deceleration2, V/f 2, torque limit Acceleration/deceleration3, V/f 3, torque limit FLA FLB FLC Output terminal function Selection Low-speed signalFunctions of output terminals incase of sink logic OUT1 OUT2 E6581301 PROFIBUS/DeviceNet/CC Stop Setup of input terminal operation time Response time settingAnalog input filter Setup of external speed command analog signal Connection and calibration Setup by analog input signals RR/S4 terminalRunning frequency characteristic Frequency meter Setup by analog input signals VI/II terminal ~10Vdc Setup by analog input signals RX terminal Run/stop setup Screen composition in the status monitor mode Monitoring the operation status Status monitor under normal conditions Setting procedure EX. operation at 60 HzMonitoring the status LED OFF No. FE06 Input terminal informationData bit of communication No. FE07 Display of detailed information on a past trip Unit timesPress this key to return to past trip Changing status monitor function MON1 MON2 COUNT1 Default Item displayed Marking Unit PanelFE56 01% FD85 FD86 Display of trip information Trip code display Error code Description Communication/Error code FE01 Direction of rotation Direction of rotation when the trip occurred isMonitor display at tripping Displayed.Forward run, Reverse run Mode Display of alarm, pre-alarm, etc How to cope with the CE standard EMC directive Measures to satisfy the EMC directive Models with a built-in EMC filter Ex. Countermeasure inverter wiring E6581301 VFAS1-4160KPC~ 100 EMF3-4600J VFAS1-4355KPC~ 100 EMF3-4600J × Power supply wiring Shielded cabless Operation with external signalsOUT2, CC Accessories for countermeasure Low-voltage directiveMeasures to be taken to satisfy the low-voltage directive Measures to be taken to satisfy the UL/CSA standards AIC, Fuse and Wire sizes Applicable Inverter model VFAS1-4355KPC 10.1 ! Selection of wiring materials and devicesAWG VFAS1-4400KPC MCC Selection of wiring equipment Magnetic contactor Input currentAVoltage Applicable Without Inverter model Reactor Magnetic contactor in the primary circuit Installation of a magnetic contactorInstallation of an overload relay Magnetic contactor in the secondary circuit Application and functions of options ACL E6581301 GTR7 Supply backup DCL Suppression Supply Filter *4 Backup CPS002Z Table of optional devices Functions of Add-on type options Functions of Plug-in type options PG feedback option 6 7 Model VEC004Z, VEC005Z, VEC006Z How to install When using the inverter along with a DC power supply Connection of a DC power supply and other electric unitsConnection of a single-phase 200V power supply MCR-2550×5 parallel Required No required Power consumed by the fans Connecting fans for a separate power supplyVFAS1 VFAS1-4200KPC4280KPC VFAS1-4355KPC, 4400KPC, 4500KPC Vector control Title Cation Function Adjustment range Speed Torque Control Reference Basic parameter 2/4 Communi Speed Torque Reference E6581301 Basic parameter 4/4 Communi Setting Braking ST-off Overload detect FunctionDisabled Selection 0304 Dynamic braking Setting unit Default Write during 0110 Always on function selection ~155 *1 Disabled 0111 ~155 *1 Disabled 0112Terminal function selection Communi Speed Torque Reference F 5-point setting Communi Vector control Title Function Adjustment rangeDefault Speed Torque Reference Cation E6581301 DC braking Communi Default Speed 0308 Dynamic braking resistance ~1000 0.1 Disabled 0309 Tripless intensification setup 2/2 Communi0307 Selection Disabled Correction of supply voltage 01~600.0kW 01/0.01 Disabled 0310 4enabled Enabled Functions for lift 2/2 Communi Process increasing rate speed type Motor constant Communi Speed Torque E6581301 Torque limit 2/2 Communi E6581301 Acceleration/deceleration 2 2/2 Communi E6581301 Bootp Dhcp E6581301 55~100% Disabled Protection functions 2/2 Communi Cation Function Adjustment range Meter output 2/2 Communi E6581301 Operation panel parameters 2/3 Communi 0755 Quick registration parameter ~999 *1 Enabled Control 0751 Quick registration parameter ~999 *1 Enabled0752 Quick registration parameter ~999 *1 Enabled 0753 0754 0756 Quick registration parameter ~999 *1 600 Enabled 0TOSHIBA Enabled RS485Communication function 1/4 1MODBUS 0813 Point 2 setting ~100% 0812 Point 1 frequency ~ Hz 0.010814 Point 2 frequency ~ Hz 0.01 0000~ Enabled 0842 Vector control Title Communi Function Adjustment rangeEnabled Wire RS485 0000~ Enabled 0843 E6581301 My function 1/5 Communi 6ORN 2STN4ANDN 22CLRN My function 3/5 Communi 1VI/II Control 0Disabled My function 5/5 Communi Communi Control Ion Function Communicat Trip retention 01Hz FD17 FE17 01% FE56 FD85 E6581301 E6581301 LOW 124 125 120 121122 123 126 127 246 247 242 243244 245 248 249 Torque Base Acc/dec Dynamic Models and their standard specifications Standard specifications small/medium capacity types Standard specifications large capacity types However, this is unnecessary for DC input specifications Common specification Voltage/frequency LED Outside dimensions and weight Outline drawing Fig. a Fig. G Fig. K Fig. O Before making a service call Trip information and remedies Trip causes/warnings and remedies Input voltage fluctuates abnormally E6581301 CPU2 E6581301 E6581301 Method of resetting causes of trip If the motor does not run while no trip message is displayed How to check other troubles More Regular inspection Check points Periodical inspection Check items Replacement of expendable parts Standard replacement cycles of principal parts Making a call for servicing Keeping the inverter in storage Warranty Disposal of the inverter