Intelligent Motor Soft Starter

Chapter 1 Outline and Installation 1. Inside Device Appearance1.1Instruction:1) The main loop wiring terminal: connect system three phase power2) Button bits: to pull out the display board. When pull it out, please press the security card in the plastic shell, and open the button bits. You can't take the display board out if pull out directly from the outside button bits.3) Technical parameters: To mark the technical parameter of the motor, such as the model, voltage class, power etc4) Motor wring terminal: Connect motor three-phase line. When motor is starting, power supply flow direction is: system power →main loop wring terminal →soft starter→ Motor wiring terminal → motor5) Bypass wiring terminals: Connect bypass contactors, when motor bypass is running, the power supply flow is: the system power supply →bypass contactor → bypass wiring terminals→ soft starter→ motor wiring terminals → motor6) Display panel: the display interface and human-machine interface of the soft starter are independent unit, can be embedded in the plastic panel, and also installed in the cabinet body7) Plastic panel: It is a part of the chassis, installed in the metal chassis. Use flame retardant ABS material 8) The warning label: It has Chinese and English versions, used for warning user's operation9) The wiring terminal cover: There is a control loop wiring terminal insideNote:1) The appearance of different devices is different2) There is only one installation type of display panel: built-in in the plastic shell or external installation, when external installation, the installation position on the plastic shell is filled by the non-function display panel.3) External bypass contactor is not a part of the soft starter, users need buy it additional.Warning:1) When built-in the display panel in the plastic shell, you can't directly remove it from the button bits because of the anti-theft design, if pull it out directly, it will cause damage. 2) The installation, electrical wiring and setting of the soft starters, must be operated by the technical staff      2. Type instruction For example, WGQ8-3075-A-P-Z presents that this equipment is suitable for the soft starter of 380V 75KW.Routine starting: Some machines, such as bow propeller, compressor, hoisting machine, centrifugal pump, conveyer belt and elevator, the mode can be chose by motor rated power. For example, Model WGQ8-3075 soft starter should be selected for the motor with the rated power of 75KW, with the compressor as the load. Heavy load starting: Some machines, such as centrifuge, crusher, mixer, grinding machine and stirring mill etc, the type selection of them can be selected based on 120% of the rated power. For example, Model WGQ8-3160 soft starter should be selected for the motor with the rated power of 132KW, with the crusher as the load.       3.Product size and motor powerOutline code:Z1Drawing1.2Device TypeExternal wiring Type Rated CurrentMotor Power380VMotor Power660VWGQ8-3011-AWGQ8-3018-BC45 Stick in chip terminal21A11KW18.5KWWGQ8-3015-AWGQ8-3025-BC45 Stick in chip terminal29A15KW25KWWGQ8-3018-AWGQ8-3030-BC45 Stick in chip terminal35A18.5KW30KWWGQ8-3022-AWGQ8-3037-BC45 Stick in chip terminal42A22KW37KWWGQ8-3030-AWGQ8-3055-BC45 Stick in chip terminal57A30KW55KWWGQ8-3037-AWGQ8-3059-BC45 Stick in chip terminal70A37KW59KWNote: 1) In the device type WGQ8-3011-A¼, A means the voltage is 380V, B means the voltage is 660V, ¼. means other function parameter, omitted     2) Device power value is a power range, for example, WGQ8-3037-A¼ means all the motors, whose power is between 30KW and 37KW is suitable for this device.    Outline code:Z2Drawing 1.3Device TypeExternal Wiring Type Rated currentMotor power380VMotor Power660VWGQ8-3045-AWGQ8-3075-BBolt Connection86A45KW75KWWGQ8-3055-AWGQ8-3090-BBolt Connection105A55KW90KWWGQ8-3075-AWGQ8-3132-BBolt Connection143A75KW132KWWGQ8-3090-AWGQ8-3160-BBolt Connection171A90KW160KW        Outline Code:Z3Drawing 1.4Device TypeExternal Wiring Type Rated currentMotor power380VMotor Power660VWGQ8-3110-AWGQ8-3185-BBolt Connection209A110KW185KWWGQ8-3132-AWGQ8-3220-BBolt Connection251A132KW220KWWGQ8-3160-AWGQ8-3260-BBolt Connection304A160KW260KW  outline Code:Z4Drawing 1.5Device TypeExternal Wiring Type Rated currentMotor power380VMotor Power660VWGQ8-3185-AWGQ8-3320-BBolt Connection352A185KW320KWWGQ8-3220-AWGQ8-3380-BBolt Connection418A220KW380KWWGQ8-3250-AWGQ8-3450-BBolt Connection475A250KW450KW     outline code:Z5Drawing 1.6Device TypeExternal Wiring Type Rated currentMotor power380VMotor Power660VWGQ8-3280-AWGQ8-3480-BBolt Connection532A280KW480KWWGQ8-3315-AWGQ8-3560-BBolt Connection599A315KW560KWWGQ8-3355-AWGQ8-3615-BBolt Connection675A355KW615KWWGQ8-3450-AWGQ8-3800-BBolt Connection855A450KW800KWWGQ8-3500-AWGQ8-3870-BBolt Connection950A500KW870KW         4. Installation4.1 Soft starter installation4.1.1. Acceptance and un-packing check of the device When the user receives the device, check the packaging, the front of the soft starter should be facing up. Check the soft starter and check whether the soft-starter model is the same as your order  Check whether there is any damage in transport, if any damage, please immediately contact the transport company or our company4.1.2. StoragePlease keep the soft starter in the packing box before installation4.1.3. Installation WGQ8 soft starter has 5 installation sizes, choose the accordingly installation size according to   voltage class and power class. If soft starter is installed in the cabinet, it must be mounted vertically, and ensure adequate ventilation 4.2. Soft starter cabinet installation4.2.1. Receiving and Inspection of Equipment When users get the soft starter cabinet, the cabinet should be placed upright. Check the device and to verify whether the soft-starter model is the same as your orders Check the soft starter and auxiliary electrical equipment, whether the installation is solid. Check whether there is any damage in transit, such as cabinet deformation, scratches and other internal components broken, if any damage, please immediately contact the transport or our company.4.2.2.Cabinet body dimensions Drawing1.7    4.2.3.Cabinet installation dimensions TypeCabinet Size(mm)Installation Size(mm)ABCDEWGQ8-3250-Aor WGQ8-3450-BAnd device below the power 6007601400400630WGQ8-3250-Aor WGQ8-3450-BAnd device above the power 7007601800500630Chapter 2 Function Description 1. IntroductionWGQ8 intelligent soft starter is a newly designed motor starting device which adopts advanced power electronics, micro-processing technology and modern control theory. In addition to start and stop function, it also has several advanced motor protection functions.Soft starter need bypass contactor to run, but the device is without built-in bypass contactor. In case of emergency, the user can start the motor directly by bypass contactor (please note the starting current)Display panel is convenient for user to operate, with clear text display, and has Chinese and English version for users to choose.Four ways to control the soft starter: Keyboard Control (Local) Start and stop terminal input control  Programmable input terminal controlSoft start, whose voltage is 380V, power is over 90KW or voltage is 660V, power is over 160KW (corresponding to the device shape code Z3, Z4, Z5) is equipped with cooling fans. And equip 2 fans for the device whose outline code are Z3, Z4, equip 3 fans for the device whose outline code is Z5.Cooling fan start and cool coercively when the soft starter is starting. When the device is running, there is no start and stop operation, the fan will stop in 30 minutes. If there is start and stop operation, count based on the last operation, the fan will stop in 30 minutes. 2.Working environmentMain loop protection class WGQ8-3090-A  or WGQ8-3160-Band device below the power :IP10;WGQ8-3090-Aor WGQ8-3160-Band device above the power :IP00;NoiseUnder normal work conditions, the noise of the running device is less than 80db (A class)VibrationThe vibration acceleration of the installation site is not more than1.5g Pollution Level3Storage temperature -25ºC~+70ºCWorking temperature-25ºC~+50ºCRelative HumidityMaximum 80% (when temperature is 20 ºC), no condensing, flammable, explosive and corrosive gasesAltitudeInstallation site altitude is not more than 1,500 meters (when altitude is more than 1500 meters, please inform us when make order)CoolingForced air coolingApplicable standardsGB14048.6_1998(IEC947-4-2) 3.General technical parameterRated insulation voltage660VRated voltage380V or 660VVoltage fluctuation range±10%Controlling power supply voltage220VControlling power supply frequency50HzControl power supply voltage fluctuation range ±20%Control power supply frequency fluctuation range±1%Working phase3 phaseProgrammable inputDC24V,built-in power supplyOutput relay250VAC,6AStart interval timeStarting interval time is more than 5 minutes, the starting time is not more than 5 per hourOverload factorWGQ8-3250-Aor WGQ8-3450-Band device below the power  :110%WGQ8-3250-Aor WGQ8-3450-Band device above the power:100% 4. Function4.1. Start function Slope Start Limit start Kick startSlope steady start Steady start Point start4.2. Stop functions Freely stop4.3. Protection function High voltage Low voltage Input missing phase Output missing phase Imbalance current Start over current Run over current Run inverse time overload (inverse time 1, 2, 3, 4) Overheat External fault Starting Over Time Parameter Error Chapter 3 Electrical wiring1.Working principleWGQ8 intelligent soft starter adopts three pairs of anti-parallel thyristor which connected in series in the stator loop, making use of thyristor switching function, adopt microprocessor control the trigger angles, to control the motor input voltage, reaching the purpose of soft start. When the motor is started and the motor current drops to normal level, start bypass switching by controlling the bypass signal, and the motor is in parallel to the grid. The schematic is as follows:       Drawing 3.11. Secondary Wiring Diagram Drawing 3.23.Main loop3.1. Wiring diagram of main circuit3.1.1. Motor winding is a star-type connected main loop wiring Drawing 3.3 3.1.2.Motor winding is a triangle-connected main loop wiringDrawing 3.43.1.3. Starter motor is connected in series in triangle motor windingDrawing 3.53.1.4. Instruction of the main loop wiringConnect the main loop power supply terminal to the terminals L1, L2, L3;Connect the motor terminal to the terminals U, V, W;Connect the bypass contactor outlet end to terminals U1, V1, W1 4.External terminalDrawing 3.6Instruction of external terminal:LabelTerminal N.O.Terminal NameInstruction of terminalNC1,18Standby Terminal Do not useBYP2,3Bypass outputBypass output connection pointPLCO4,5Programmable OutputProgrammable output connection pointFAULT6~8Fault outputFault trip output connection point4-20mA9,104-20mA transmission output4-20mA transmission signal outputSTART11Start START&COM is short connectedSTOP12Stop STOP&COM is short connectedPLCI13Programmable to startPLCI&COM is short connectedCOM14To the public terminalInternal 12V power supply referenceNC15,16Standby TerminalDo not useVGND17Internal PGNDInternal 5V PGND,adopting ground-free, is not external groundedL,N19,20Power supply terminalPower supply connections Note When programmable output, pre-set programmable output type by the menu "Programmable Output Type" Terminals 6,7 are normally closed contact, terminals 7,8 are normally open contact. 4-20mA transmitter output signal is the average of three-phase current value, when running current equal to the rated current, it is about 8.5mA, transmitter current output value can be calculated in accordance with the formula.  and  is real-time transmitter output value,  is the rated current set for the device When set the menu "control type" with two-line remote control, J1-11 and J1-14 closed (self-holding) means start, and disconnect means stop, J1-12 are standby. When set with three-wire remote control, J1-11 and J1-14 is closed (self restored) to start, J1-12 and J1-14 are closed (self restored) to stop. Two-wire remote control need self-sustaining, three-wire is instantaneous signal. Programmable input can be set by the menu item "Programmable input type" , can be set to different input value. Such as invalid, start, point start, stop, rush stop, reset, external fault etc. Used for controlling the soft starter externally. To improve system anti-jamming performance, you'd better get the device power supply AC220V additionally, if taken directly from the three-phase power, please detach it from the bypass contactor power lines    Chapter IV Human-machine interface 1. Operation PanelThe panel is composed by the LCD display, LED light and simple keyboard. Panel is shown as below: Drawing 4.1LCD display is the backlit 8 × 4 Chinese character LCD module, keyboard is composed by six touch keys: "SHFT", "∧", "∨", "MENU / PRG", "RUN", "STOP / RST". LED indicator indicates status and signals of the device.1.1. Instruction of the indicatorDrawing 4.2Instruction: When protection function act, the "FAULT" signal indicator on the panel is on, and LCD display shows the type and parameters of fault. If want to know more, you can select "Event Record" in the main menu to view the sequence of events.1.2. Instruction of keysDrawing 4.32.Interface DisplayThe local display and data query function of the device are showed by the LCD display, users can set it by the keyboard. When the device is powered, the display board parameters initializes, initialization interface is as follows:     Drawing 4.4Both of the display board and master controller are storing the menu parameters, when initialization is complete, the device detects the main board menu parameters and display panel menu parameters automatically, if these two parameters are the same, it enter standby screen directly, if not, it will jump to the following interfaceDrawing 4.5Users need make the two menus parameters same, if the operation is error, the menu parameter will error, so you need input the password when setting the parameter. If the parameter go by the main board parameter, select "Main board parameters → Display board", press "MENU / PRG" and input the correct password, the main board parameter will pass to display board, and replace the display board parameters.Users can reference to this upload and download function, and need not to set parameter afresh when change main board or display.When the main board parameters and display panel parameters are the same, it will switch to the normal standby screen automatically. There are totally 5 display interfaces when the device is running. And they are showing as follows:2.1.Standby interfaceDrawing 4.62.2.Starting interfaceDrawing 4.72.3.Running interfaceDrawing 4.82.4.Fault interfaceDrawing 4.93.Menu instructionDo not modify parameter when the device is starting or running, it should be modified in the standby mode. Please press the "MENU / PRG" key to enter the menu, and it shows "parameter browse" and "parameter modification", then press "∧" or "∨" to select, press "MENU / PRG" to enter. The sub-menu of "parameter browse" and "parameter modification" are totally the same, "parameter browse" can only browse the parameter, but can't be modified, while "parameter modification" can modify the parameter, but you must input the modification password first, then enter the sub-menuAfter modification, press "STOP/RST" to exit, if no operation, the procedure will return to the former menu in 20 seconds automatically. 3.1.Menu operationWhen it is standby, press "MENU/PRG" to enter the following interface:Drawing 4.10"parameter browse" and "parameter modification" have the same content, "parameter browse" can be entered when it is ready, start and running, but you can only browse the parameter and can't modify it. "parameter modification" can be entered only in ready status, but the parameter can be modified. 3.1.1. The first class menuPress "MENU / PRG" to select "parameter browse" or "parameter modification", then enter the first class menu. Users can enter "parameter browse" directly, and you need press a password to enter "parameter modification". Then elect the sub-menu by "∧", "∨". After choosing the accordingly first class menu, press "MENU / PRG" to enter the second class menu directlyDrawing 4.113.1.2. The second Class menuSelect the sub-menu by "∧", "∨" in the first class menu, such as "Start Control" menu, press "MENU / PRG" to enter the second level menu. If the second level menu need set, press the "MENU / PRG" key to enter the third level menu directly.3.1.3. Three-level menuIn the second level menu, press "∧", "∨" to enter the sub-menu, such as "Slope Start" menu, press "MENU / PRG" to enter the third level menu Drawing 4.12Note:The initial password of the program is 0000. 3.2.Parameter modificationIf you want to modify the parameters, firstly select the submenu by "∧", "∨" key, then press "MENU / PRG" to enter, select the parameters which to be modified by "SHFT" key, press "∧", "∨" key to modify the corresponding number, when complete modification, press "MENU / PRG" key to save. To modify the next parameter, repeat the above operation, to exit, press "STOP / RST" to return to the above menu 3.3.Menu itemsFirst class menuSecond class menuThird class menuSetting rangeInitial parameter01.Language selectionChineseEnglish//Chinese02.Options Setting Pe×××.× kw/11~500 kw Setting Ie×××× A/1~1000 A Control mode××××/Key, two-wire, 3 wire, PC Ctrl, key + PC, 3W+ PCKeyIn Mode××××/Disable, Start, Stop, Q Stop, Point, Reset, FaultDisableIn Delay×××× s/0~240 s0Out Mode××××/Disable, Ready, Start, Run, RDY+STR, RDY+RUN, STR+RUN, R+S+RUNDisableOut Delay×××× s/0~240 s0PASSWORD××××/0~999904-20mA Adjust/0~9.994mA 03.Start control Slope StartInit Volt×××× %30~80%40%Start Time×××× s1~120 s30 sLimit start Init Volt ×××× %30%~80%40%Start Time×××× s1~120 s30 sLimit Curr×××× A100%~400%350%Kick startKick Volt×××× %50%~80%70%Kick time×××× s100~3000ms400 msInit Volt×××× %30%~80%40%Start Time×××× s1~120 s30 sSteady startSteady Volt×××× %30%~100%60%Slope steady start Init Volt×××× %30%~80%40%Start Time×××× s1~120 s30sSteady Volt×××× %30%~80%60%Steady Time×××× s1~120 s5spoint startPoint Volt ×××× %30%~80%60%04.Standby////05. Prot SelectInput Ph Loss 01:××××  /Enable,disable EnableOutput Ph Loss 02:××××  /Enable,disable EnableStart Over Curr 03:××××  /Enable,disable EnableStart overtime04:××××  /Enable,disable EnableRun Over Curr 05:××××  /Enable,disable EnableI2t  Overload 06:××××  /Enable,disable EnableImbalance Curr 07:××××  /Enable,disable EnableHigh Volt 08:××××  /Enable,disable disableLow Volt 09:××××  /Enable,disable disableHigh temp 10:××××  /Enable,disable EnableExt Fault 11:××××  /Enable,disable disableStandby12:××××  /Enable,disable disableStandby13:××××  /Enable,disable disableStandby14:××××  /Enable,disable disableStandby15:××××  /Enable,disable disableStandby16:××××  /Enable,disable disable 06. ProtectMin Gap Time 01:×××× s/1~9999 s300 sMax Start Time 02:×××× s/1~240 s40 sStart Over Curr 03:×××× %/300%~600%400%Run Over Curr 04:×××× %/100%~400%120%Over Curr Delay 05:×××× s/0~240 s30 sI2t  Overload06:×  L/1~41Imbalance  Curr 07:×××× %/0%~100%0%Imbalance delay 08:×××× s/0~240 s10 sHigh volt 09:×××× V/380~500 V420 VHigh volt delay 10:×××× s/0~240 s10 sLow volt 11:×××× V/0~380 V350 VLow volt delay 12:×××× s/0~240 s10 sPh Loss Curr 13:×××× %/0~20%10%Standby14:×××× ///Standby15:×××× ///Standby16:×××× ///07. Standby////08.Input and output1. Input××××/1:Act0:inactive/2. Output××××××/1:Act0:inactive/09. Initial////10. Fault record////11. Equip Info////12. Equip State//// Instruction. Options →Setting Pe: rated power can not be modified. . Options→ Control Mode. There are seven control modes: Keyboard control, two-wire remote control, three-wire remote control, PC machine control, keyboard+ three-wire remote control, keyboard + PC, three-wire remote control+ PC. Select them by setting, and some of the item names in the menu are shortening. Options →In Mode: There are seven input types: Disable, Start, Stop, Q Stop, Point, Reset, Fault, select them by setting,. Options →Out Mode: There are eight types of output : Disable, Ready, Start, Run, RDY+STR, RDY+RUN, STR+RUN, R+S+RUN. Select them by setting, and some of the item names in the menu are shortening. Options →4-20mA Adjust, when the motor current is 0, the output value corresponding to 4mA calibration.. Options →Min Gap Time: It means the time interval between the first start and the second start of soft starter. If the time is less than the setting value, the start is not allowed until the interval time meets the setting value. . Options→ Max Gap Time: Means the time from the beginning of the start to bypass, starting time is too long may be caused by overload of motor or parameters are unreasonable.     . Protect →I2t Overload: 1: K = 17; 2: K = 34; 3: K = 80; 4: K = 160; the starting current value of inverse time protection is max {1.14Ie, (1 + EP parameter) × Ie}.. Input output→ output: 000001. Fan out put JP1;000010. .fault output JP2;000100. programmable output JP3;001000. bypass output JP4;010000.4~20 output, When in test, output is 10mA;100000 pulse triggering output. Input and output menu is only used in circuit board debug, please don't operate this function when use the device.. Equip State: means the device ID, software version.Note:The voltage level of above system is 380V, the parameter range of 660V device menu is different from that. 4. Display board connectionDisplay board is an independent part, which connected to internal device by communication connection the connection line is standard networking. The display has two connection types: one is embedded in the plastic shell, that is to say, the cable comes out directly from the device, and connect to the display board. The other is installed on the outside of the device(for example, on the cabinet door), the network cable comes out from the communication switch interface which is on the left of the plastic shell, and then connect to the display board. After connecting the cable, the power supply light is on, running lights are flashing, which means it is running normal.Check the display board after it is powered, if the parameter is not the same as the parameter of main control circuit board, it will show the parameter is not the same, and exit menu 4.5. The operator can pass the main board parameter to the display board, or pass the display board parameter to the main control board. You can use the transfer function of the parameter when change the display board or main control board, and needn't re-set the parameter.Chapter Five Start-stop Control1.Slope StartMenu path:    When motor is starting, soft starter output voltage, and the voltage increase to "initial voltage" rapidly, and then increase output voltage according to "start time" until it is started.Slope Start is suitable for occasions such as high inertia load, or not so strict for start current, but strict to start stability.     Slope Start mode can greatly reduce the starting shock and mechanical stress, the greater the initial value, the greater the initial torque and the starting instant impact, the length of starting process has something to do with the set start time and load weight, and it has nothing to do with times current limit Slope Start parameters:Initial voltage: setting range is 30~80%Ue, initial value 40%Rise time: setting range is 1~120s,initial value:30s  1. Limit start Menu path:                                                                                                 When start the motor, the motor current increase smoothly to the set value, and maintain a steady output current, make the motor accelerate gradually. When the motor is closed to the rated speed, motor current decrease rapidly to normal running current, the start is completedLimit start is used for occasion which is strict for start current, especially the grid capacity is too small, need to limit start capacity. Because of limit current, the over load motor can't accelerate, and can't start, so limit start is suitable for occasions which current load is less than 70%Ie when normal running.The actual starting time of Limit start has something to do with times of limit current, the larger the limit current times, the shorter the starting time, or, it will be longer. Limit start parameter:Initial voltage: setting range is 30 ~ 80% Ue, initial value: 40% Rise time: Setting range is 1 ~ 120s, the initial value: 30s Limit current: setting range is 100 ~ 400% and initial value: 350%:        3.Kick startMenu path:                                                            In some overloaded situations, because of the impact of static friction, the motor need a large torque to start, and Slope Start can not start the motor, then you can choose Kick start. When starting, add a fixed high voltage to the motor, and keep for a limit time, to overcome the static friction to start, then start the motor by slop start. Kick start is used for high static friction loadKick start parameters:Kick voltage: Set the range 50 ~ 80% Ue, initial value: 70%Kick Time: Set the range 100 ~ 3000ms, initial value: 400msInitial voltage: set the range 30 ~ 80% Ue, initial value: 40%Rise time: set the range 1 ~ 120s, the initial value: 30s 4.Slop steady startMenu path:                                        /           /                When start the motor, increase the motor output voltage to steady value by Slope Start, and keep it to the set time, then increase the voltage by Slope Start until the start is complete Slope steady start is used for high moment of inertia, and small friction load occasions.Parameters of slope steady start:Initial voltage: setting range is 30 ~ 80% Ue, initial value: 40%Rise time: Setting range is 1 ~ 120s, the initial value: 30sSteady voltage: Set the range to 30 ~ 80% Ue, initial value: 60%Steady time: Range is 1 ~ 120s, the initial value: 5s  5.Steady start modeMenu path:                                                           When starting the motor, the motor output voltage and rise to the setting value steady, and make the output voltage steady. When the motor speed is closed to the rated speed, motor current rapidly decreased to the normal running current, the start is complete.     Steady start equals to low voltage start, it is suitable for light load occasion, if the load is too heavy, the motor fail to start normally. The time of Steady start has something to do with the setting steady voltage, the higher the voltage, the shorter the starting time, the lower the voltage, the longer the starting time. Parameters of steady startSteady voltage: Set range is 30 ~ 100% Ue, initial value: 60%   6.Point start Menu path:                              Point start starts by keyboard, press "RUN" key, motor start to run until start process is complete. When stop press "RUN" button, start process stop immediately. Point start adopts manual control, can control stop time artificially. So point start mode usually used to confirm the running direction of motor or start in a short time, and not used in normal start condition. Parameters of point startPoint start voltage: Range is 30 ~ 80% Ue, initial value: 60% Long time point start is Steady start, graph of short time point start is as follows:  7.Parameter of different loadLoad typeStart typeInitial voltage(Limit current)Start timeStart clippingActual start timeFanSlope start40%~60%35~60s≤420%30~45s Water pump Slope start30%~40%30~40s≤400% 15~25sLimit start300%35~50s≤400%Steady start70%35~50s≤400%CrusherSlope start40%~60%35~50s≤430%25~35sConveyorSlope start40%~50%35~50s≤400%30~40sKick startElevatorSlope start30%~40%30~40s≤380%20~30sCompressorSlope start30%~40%35~45s≤400%25~30s   Chapter VI Protection   WGQ8 intelligent soft starter has a sound protection function, it can make the motor running safely. When the running is fault, the corresponding fault type and fault value will bounce, you can press "Stop / Reset" button to reset the signals. The device can save 9 groups of fault records, users can enter "fault record" menu to inquiry. 1.High voltageRunning voltage exceeds setting over-voltage value, and last to the delay time, and high voltage protection is enable, so high voltage fault trip, bounce high voltage protection, and record accordingly. If the voltage reduced to the value which is less than high voltage value during the delay time, it will revert to the protection.High-voltage protection is enable, and high-voltage protection function is enableParameters of high voltage protection:High voltage parameter: setting range is 380 ~ 500V, initial value: 420VHigh voltage delay time: Setting range is 0 ~ 240s, the initial value: 10s 2. Low voltageRunning voltage is less than the set low voltage value, if last to delay time, and low voltage protection control is enable, and low voltage fault trip, bounce low voltage protection information, and record accordingly. If the increase of voltage exceeds low voltage parameter during the delay time, revert to the protection.  Low voltage protection control is disable, and low voltage protection function exit. Parameters of low voltage protection:Low voltage parameter: the range is 0 ~ 380V, initial value: 350VLow voltage delay time: setting range is 0 ~ 240s, the initial value: 10s