Stall prevention function | Toshiba VF-AS1 manual

E6581301

6.26Stall prevention function

6.26.1Power running stall continuous trip detection time

: Power running stall continuous trip detection time

• Function

A function for preventing lifting gear from failing accidentally. If the stall prevention function is activated in

succession, the inverter judges that the motor has stalled and trips.

[Parameter setting]

Title	Function	Adjustment range	Default setting
	Power running stall continuous trip detection time	~ sec.

Output frequency [Hz]

Output current [%]

“” trip"

Time [s]"

6

Time [s] "

less than

6.26.2 Regenerative braking stall prevention mode selection"

: Regenerative braking stall prevention mode selection

• Function

A function for preventing lifting gear from stopping in the wrong position. Only the function of preventing a stall by maintaining the current constant during regenerative braking (deceleration stop) is deactivated.

[Parameter setting]

	Title	Function	Adjustment range	Default setting
		Regenerative braking stall prevention	:Stall during regenerative braking
		mode selection	:Not stall during regenerative braking
		mode selection	:Not stall during regenerative braking

6.26.3 Stall prevention control switching"

: Stall prevention control switching

• Function

The operation of the stall prevention control can be switched. Set =when the overvoltage trip etc. are displayed when acceleration and the deceleration are switched.

This parameter is effective at only V/f control mode( =0,1,5).

[Parameter setting]

	Title	Function	Adjustment range	Default setting
		Stall prevention control switching	: Stall prevention control
		Stall prevention control switching	: Stall prevention control 2
			: Stall prevention control 2

F-49

Image 165

Toshiba VF-AS1 instruction manual Stall prevention function, Power running stall continuous trip detection time

Contents

New High-performance inverter Limits in purpose Safety precautions General Operation Transportation & installation Reference Wiring Operations When retry function is selected Maintenance and inspection II. Introduction Contents 13.2 13.114.3 14.4 24.2 24.124.3 25.1 36.3 36.236.4 36.5 10.6.1 10.610.6.2 12.1 Check the product Contents of the product codeExplanation of the type and form written on the label Type Form Names and functions 1 Outside view Structure of the main body RS485 connector/cover Mode key MON lampRUN lamp 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 Detaching the cover Control circuit terminal blockControl circuit terminal block is common to all equipment 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 Adjusting the overload protection level Comparisons with commercial power operationMotors Operation in the low-speed area High-speed operation at and above 50Hz/60Hz rated frequency Braking a motor when power supply is lostMethod of lubricating load mechanisms Low loads and low inertia loads Inverters Disposal If power supply distortion is not negligibleMeasure to take against leakage Current Effects of leakage current across ground Affects of leakage current across supply lines Affects of leakage current by cable lengthRemedies Installation Installation environment Resistors Place far away from VF-AS1 Inverter How to install 4001Without top cover Standard installation Side-by-side installation5001Without top cover 6001Without top cover Ambient temperature 4001Without top cover Ambient temperature Continuous4001With top cover F631=0 Output 4001With top cover Carrier frequency Ambient temperature5001With 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 Between PO and PC Standard connections 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 Description of terminals Power supply and motor connectionsMain circuit terminals Connection with peripheral equipment RR/S4 RES VI/I PLCOUT1 OUT2 FLA +SUFLB FLC Sink logic Source logic1Be sure to short across NO-CC SOURCE! INT/PLC 3 RS485 communication connector Operations VF-AS1 has the following three setting/monitor modes Setting/monitor modes Example of standard connection Simplified operation of the VF-AS1Mccb OFF Frequency setting + RR/S4 CCA+ VI/II Setting the frequency using input voltage 0~±10Vdc Setting the frequency using input voltage 0~10Vdc+ VI/II CCA + RX CCA Default setting Press the Enter key to display the first extended parameterPress Key to change to Set frequency Panel operationMotor starts Stop the motor Example of operation panel control Selecting a stop mode with the operation panelDeceleration stop 1 Press the Stop key Press the Stop key again Quick mode Easy Searching and setting parameters Setting parameters in the selected quick mode How to set parameters Setting parameters in the standard setting mode Changed parameter search function History function Setting methodsHistory function Function When load is small Setting acceleration/deceleration timeWhen load is large Automatic acceleration/deceleration Constant torque characteristics default setting Manually setting acceleration/deceleration timeIncreasing starting torque Automatic torque boost Automatic torque boost and V/f control mode selection If vector control cannot be programmedIncreasing torque manually V/f constant control Automatic function setting Setting parameters by operating methodFrequency Voltage/current Setting on Default Automatically programmed functions and parameter set values Selection of operation mode Command mode selection Frequency setting mode selectionCommand mode selection RR/S4 input VI/II inputRX 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 Standby connection of terminals ST and CC Run/stop ON/OFF of terminals F-CC/R-CC Or 40~20mAdc Selecting control mode Constant torque characteristics Normal way of useControl mode selection Decreasing output voltage Torque boost rate is adjusted automaticallyMotor constant must be set Output frequency Hz Base frequency Setting of V/f control mode selection = V/f 5-point setting Setting of V/f characteristic arbitrarily Base frequency voltage 5-point setting Output voltage Setting of V/f control mode selection = PM controlOperating a permanent magnet motor VF5 VF4 VF3 VF1 VF2 Precautions on automatic torque boost mode or vector control Base frequency Manual torque boost-increasing torque boost at low speedsManual torque boost Base frequency Base frequency voltage Upper limit and lower limit frequencies Maximum frequencyMaximum frequency Upper limit frequency Lower limit frequency Preset speed operation speeds in 15 steps Setting frequency command characteristics RR/S4 RR/S4-CC ST-CC OFF Forward/reverse run selection Selecting forward and reverse runs operation panel only Explanation of terms Setting the electronic thermal First basic parameter History function is displayed Using a VF motor motor for use with inverterPress either the key or the key to change the parameter to = motor rated current/inverter output rated current x Motor 150%-overload time limit Setting the motor overload starting levelOperation frequency Frequency 01Hz *1 No less than Motor overload Inverter overload characteristics Current/voltage unit selection Changing the display unit % to a ampere/V volt VF-AS1 Meter setting and adjustment Regenerative braking resistance overload factor OLr data Press either Key to select Adjustment is complete. and the frequency are displayedPress the Enter key to display the operation frequency Display returns to its original indications Press the Enter key to switch to the data display mode Select the AM terminal meter adjustment by pressing the keyReturn the parameter setting to output current display Display mode. When standard monitor display selection = PWM carrier frequency Gradient bias adjustment of analog monitor output Refer to .4.4, Current reduction curve Below 130% Trip-less intensification Operation and application of the auto-restart function Synchronized acceleration/deceleration signal An example of setting when = Dynamic regenerative braking For abrupt motor stop External braking resistor with a thermal fuse optional Connecting an external braking resistor optional When a using braking resistor without thermal fuse Capacities of 400V-200kW or more VFAS1-4280KPC Selection of braking resistor option and braking unit Minimum resistance of connectable braking resistors Factory default setting Standard default setting50Hz default setting = 60Hz default setting = Reset of user-defined parameters = Default setting =Acceleration/deceleration time setting 0.01 to 600.0 sec. = Acceleration/deceleration time setting 0.1 to 6000 sec. = Press Key to select Automatic edit functionKey to change the parameter displayed. Press Key to search for parameters in reverse direction Quick mode Quick mode/standard setting mode switching function =Standard setting mode Easy key function Shortcut key function = Operation panel/remote key function =Peak hold function = Low-speed signal output Inverted Low-speed signal Low-speed signal output frequencyConnection diagram SW1 set to sink logic P24 OUT1 or OUT2 Output terminal setting Parameter setting of output terminal selection Parameter setting of frequency and detection band Parameter setting Input signal selectionForward run signal Reverse run signal Command from the terminal board Valid command 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 Connection method 1 a-contact input PLC Servo lock status Using the V/f adjustment function Adjustment rate Basic parametersManual torque boost Base frequency Thermal protection level Parameters selected S1-CC S2-CC V/f 5-point setting 5-point setting VF3 frequency 5-point setting VF3 voltageSwitching with input terminal board = Priority is given to Command set With Automatic switching by means of switching frequencies = 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 Time limit for lower-limit frequency operation Operation signal F-CC SW1 set to sink logic Time s ST-CC S3-CC Jog run mode Status monitor mode Adjustment with pulse signals Parameter-setting example «Sample sequence diagram 2 Adjustment with pulse signals» 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 Supply voltage correction Output voltage adjustment 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 Reverse run Forward run Acceleration/deceleration suspend function Stall control Commercial power/inverter switching Timing chart example PID control feedback control signal selection PID control switching Process lower limitPID control Differential D gain Types of PID control interface External connectionProcess value DC0~10V RR/S4 CCA VI/II Adjust PID control gain Setting the PID controlFast response Low proportional gain Adjusting the analog command voltage and current Stop position control function Setting motor constants YES SettingsBase frequency Voltage Rated capacity 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 Regenerative braking stall prevention mode selection Power running stall continuous trip detection timeStall prevention control switching Stall prevention function Max output voltage modulation rate Current and speed control adjustment Operating a synchronous motor Fine adjustment of frequency setting signal Deceleration S-pattern lower limit adjustment Acceleration S-pattern lower limit adjustmentAcceleration/deceleration Deceleration time Acceleration time Acceleration/deceleration switching signal Set frequency Pattern operation E6581301 ~ Preset speed operation modes Preset speed modePattern operation finished OFF signal Function selection Protection functions Setting of stall prevention level Stall prevention level Emergency stop Emergency DC braking control time Output phase failure detection mode selection Output phase failure detection Function OFF ON! OFF Cooling fan control selection Cumulative operation time alarm setting Braking answer waiting time Rush current suppression relay activation time 33.18 VI/II analog input wire breakage detection level Refer to 5.19 for details DC voltage Rush current suppression relay Ground fault detection selection Disconnection detection of remote keypad Override Ex.2 = VI/II input, = disabled Ex.1 = VI/II input, = disabled Adjustment parameters FM terminals setting example SW2 0-10V/0-20mA sideLarge gain Operation panel parameter Resetting method Monitor-displayed or parameter-set frequency Value displayed When is not , and is disabled When is not , and is notAn example of setting When is , and is Example of setting Trace selection Trace cycle Trace data Tracing functions To acquire trace data at the time of triggering = Acquisition of trace data Integrating wattmeter Trace data communication numberRelationship between pointer and data Communication function Send waiting time 2-wire RS485 No action Common to 2-wire RS485 and 4-wire Alarm Wire RS485Alarm No action TOSHIBA, Modbus E6581301 Response data INV → host ~ ~ Data Host →!INV Wiring Data Master → Slave Toshiba Modbus Alarm No action Trip E6581301 My function Traverse functionInput function target 11~ My function selection ETB004Z ETB003ZVEC007Z 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 COM Inverter Input terminal Programmable controller Acceleration/deceleration3, V/f 3, torque limit Acceleration/deceleration2, V/f 2, torque limit Functions of output terminals incase of sink logic Output terminal function Selection Low-speed signalFLA FLB FLC 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 Running frequency characteristic Setup by analog input signals RR/S4 terminalConnection and calibration Frequency meter ~10Vdc Setup by analog input signals VI/II terminal Run/stop setup Setup by analog input signals RX terminal Monitoring the operation status Screen composition in the status monitor mode Monitoring the status Setting procedure EX. operation at 60 HzStatus monitor under normal conditions LED OFF Data bit of communication Input terminal informationNo. FE06 No. FE07 Display of detailed information on a past trip Unit timesPress this key to return to past trip Changing status monitor function MON2 MON1 FE56 01% FD85 Default Item displayed Marking Unit PanelCOUNT1 FD86 Trip code display Display of trip information Error code Description Communication/Error code Monitor display at tripping Direction of rotation when the trip occurred isFE01 Direction of rotation Displayed.Forward run, Reverse run Mode Display of alarm, pre-alarm, etc EMC directive How to cope with the CE standard Models with a built-in EMC filter Measures to satisfy the EMC directive Ex. Countermeasure inverter wiring E6581301 VFAS1-4355KPC~ 100 EMF3-4600J × VFAS1-4160KPC~ 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 Applicable Inverter model AIC, Fuse and Wire sizes AWG 10.1 ! Selection of wiring materials and devicesVFAS1-4355KPC VFAS1-4400KPC MCC Selection of wiring equipment Magnetic contactor Input currentAVoltage Applicable Without Inverter model Reactor Installation of an overload relay Installation of a magnetic contactorMagnetic contactor in the primary circuit Magnetic contactor in the secondary circuit ACL Application and functions of options E6581301 DCL GTR7 Supply backup CPS002Z Suppression Supply Filter *4 Backup Functions of Add-on type options Table of optional devices PG feedback option 6 7 Model VEC004Z, VEC005Z, VEC006Z Functions of Plug-in type options How to install Connection of a single-phase 200V power supply Connection of a DC power supply and other electric unitsWhen using the inverter along with a DC 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 Speed Torque Control Reference Vector control Title Cation Function Adjustment range Speed Torque Reference Basic parameter 2/4 Communi E6581301 Disabled Selection Setting Braking ST-off Overload detect FunctionBasic parameter 4/4 Communi 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 0307 Selection Disabled Correction of supply voltage Tripless intensification setup 2/2 Communi0308 Dynamic braking resistance ~1000 0.1 Disabled 0309 01~600.0kW 01/0.01 Disabled 0310 4enabled Enabled Functions for lift 2/2 Communi Process increasing rate speed type Speed Torque Motor constant Communi E6581301 Torque limit 2/2 Communi E6581301 Acceleration/deceleration 2 2/2 Communi E6581301 Dhcp Bootp E6581301 Protection functions 2/2 Communi 55~100% Disabled Cation Function Adjustment range Meter output 2/2 Communi E6581301 Operation panel parameters 2/3 Communi 0752 Quick registration parameter ~999 *1 Enabled 0753 0754 Control 0751 Quick registration parameter ~999 *1 Enabled0755 Quick registration parameter ~999 *1 Enabled 0756 Quick registration parameter ~999 *1 600 Enabled Communication function 1/4 Enabled RS4850TOSHIBA 1MODBUS 0813 Point 2 setting ~100% 0812 Point 1 frequency ~ Hz 0.010814 Point 2 frequency ~ Hz 0.01 Enabled Wire RS485 Vector control Title Communi Function Adjustment range0000~ Enabled 0842 0000~ Enabled 0843 E6581301 My function 1/5 Communi 4ANDN 2STN6ORN 22CLRN My function 3/5 Communi 1VI/II My function 5/5 Communi Control 0Disabled Communi Control Ion 01Hz FD17 FE17 Function Communicat Trip retention 01% FE56 FD85 E6581301 E6581301 LOW 122 123 120 121124 125 126 127 244 245 242 243246 247 248 249 Torque Base Acc/dec Dynamic Standard specifications small/medium capacity types Models and their standard specifications However, this is unnecessary for DC input specifications Standard specifications large capacity types Voltage/frequency Common specification LED Outside dimensions and weight Fig. a Outline drawing Fig. G Fig. K Fig. O Trip causes/warnings and remedies Before making a service call Trip information 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 More How to check other troubles Check points Regular inspection Check items Periodical inspection Standard replacement cycles of principal parts Replacement of expendable parts Keeping the inverter in storage Making a call for servicing Warranty Disposal of the inverter