AMVS computerized softstarter withChineseDisplayfor MV AC motorUserManualNanjing Aubo Electric Co.LtdProduct Feature:AMVS is the computerized digital soft starter for MV AC motor , with Chinese display. Its system uses the advanced single chip microcomputer, PLC controller and color touch screen HMI and high voltage power electronic semiconductor devices and modern control technology to integrate a new type of product of solid state starter and running protection of MV AC motor. In addition to the excellent starting function, this product also has a perfect comprehensive protection function of the motor running, can ensure that the motor and mechanical transmission equipment running in a safe and reliable operation of the various circumstances. Compared with other types of medium voltage motor soft starter (such as water resistance type), the soft starter consumes less energy in the process of starting , therefore it has the obvious energy saving effect, and itcan be used in the occasion of frequent starting. At the same time, since the soft starter is made of solid state devices, it has the long-term use of free maintenance, and a small equipment size, easy to move and a better vibration resistance as clear advantages. Further more, it has the following unique features and obvious advantages, becoming the ideal replacement of other traditional medium voltage soft starter.1.Starting of initial voltage can be set according to the actualsituation and need flexibly, as low as to 15% of the supply voltage, and the highest could be 90%, make the motor have a larger starting torque and small starting current, reducing the equipment operation requirement for power grid capacity, saving the investment of equipment. Reduce the impact stress to the motor and to the mechanical transimission part itself, and can prolong the service life of motor and transmission machinery.2.When starting， the initial start voltage, the start time andstarting current limit and so on, are available on color LCD touch screen to be easily set up and be implemented, and soft stop deceleration time can be set freely according to the requirementsslowing down and stop condition of equipment and motor.3. variety of starting mode ( reduced voltage starting ,constantcurrent starting) control to meet the various startingperformance requirements of the device.4.Perfect motor running protection function, can ensure the safetyof the equipment operation, protection function are like:a. protection alarm for input supply voltage high.b. protection alarm for input supply voltage low.c. the input power phase loss alarm.d. motor overload alarm for inverse time over current protection .medium voltage motor imbalanced current alarmf. motor start excess time protection alarm.g. the bypass contactor fault alarm.h. residual current leakage alarm for the equipment.i. the main three-phase thyristor power device breakdown damagealarm and display.j. short circuit instantaneous tripping alarm (which can be classified as current transformer range 0.1- 2.5 times current).5.The soft starter shows motor three-phase working current and theresidual current leakage, and the voltage of power supply, anddisplays the total motor running time, which is not affected bypower outages, to facilitate the understanding of the equipmentrunning total time, easy to carry out regular maintenance.6.The running parameters of display are colored Chinese touch screenman-machine interface, easy parameters setting is veryintuitive.7.According to user requirements it can privide profibus dpcommunication interface, and remote monitor computer networkingcommunication at the next higher level and to realize the remotecontrol.(please notify when ordering for other communicationneed)Touch screen panel shows the various parameter setting.The function description:Running time (RUNtime) : 0-9999 hour (H); The count value is for all previousrun time accumulated, after 9999 hours fullvalue, it goes automaticａｌｌｙback tozero.Every time after restart, the timingcounts again.Start Time: The unit is seconds; 0.1 99.9 seconds (S)Stop Time: The unit is seconds; 0.1 99.9 seconds (S)Overcurrent: The unit is A; it is generally set as about 1.2 times of rated current of motor nameplates.In the process of motorstarting, it doesn't work.When the soft starter goes into runstate, if the motor current is the same or more than the value,the controller will count the timing of inverse timeoverload .When it achieves the time set by overload time, thesoft starter will stop working and generate overload alarmsignal.overload time: 0.1-199.9 seconds (S); When the motor current exceed theset overload current value, such as thetime more than the set time,it producesoverload alarm. This time has theinverse time protection characteristics,that is, when the actual current exceedsthe set overload current value, the greaterthe current, the shorter the protectionｔｉｍｅ.start voltage: range: 10-90%; When starting voltage is corresponding to 10% 90% of the power supply voltage , the user can adjustit according to actual situation of devices.Residual current: The unit of the value is A, which is the actual signal detected from the residual current transformer, witha range of 0.01-9.99 A.The value displayed is the actualresidual current detected by the residual currenttransformer, which cannot be modified. When the userreplaces the transformer with different type, he must adjustP4 potentiometer of the control board to calibrate it.Start current limit: The unit is A: the current value is the maximum current value in the process of starting a motor.In theprocess of starting, when the motor starting current reachesthe value, the starter will limit the increase of thestarting current, the starting time value being the biggestprotection time.If due to the reason of too heavy load, thestart can not be completed in the set starting time, thestarter will stop and generate "starting overtime" alarm.If the equipment is normal, this can be resolved byincreasing the current limit value or increasing thestarting time. Please pay attention to this! The largest setvalue shall not exceed two times of the "mutual inductancecurrent" set value! When the start mode is selected as“reduced voltage", the parameter value is invalid.Current leakage protection: The unit of the value is A, with a range of 0.01-9.99 A.The set values is the trigger value ofleakage current protection.When the value is set to 0.00A, the function is invalid.This value is the value detectedby the residual current transducer on the output side ofsoft starter. When the output cable or the medium voltagemotor has a bad insulation to the ground and causes leakagecurrent to ground, if the leakage current detected isgreater than the set value, and duration time is greaterthan the set leakage time, the soft starter will immediatelystop and produce a fault alarm on the display(leakageblocking protection alarm) .When it is used for the firsttime, the value can be set to a maximum first. At the firststarting of equipment, the user should observe the maximumleakage current (usually during start), and the averageleakage current during run. When it comes to stop, set theparameter to a value 20-30% greater than the actual leakagecurrent .Current leakage delay: The unit of the value is second, with a range of ０．１-9.99 second.The set values is the delayvalue of leakage current protection.When the value is setas 0.0 seconds, it is the instantaneous protection action .Due to all kinds of complicated conditions of transmissioncable and medium voltage motor, the leakage current isbigger during start and is smaller during run, so settingthe appropriate time delay of the protection willeffectively avoid mis-operation of the leakage protection,that is, when the leakage current is beyond the above item ,the user should notice this.The leakage time delay functionbecomes invalid once the motor goes into run mode normally.Once the leakage current exceeds the set leakage currentprotection value, the soft starter will immediately stopand produce an alarm on the display (leakage blockingprotection alarm).Over voltage protection: The unit is KV: this parameter is to protect the device from working with too high power supply voltage.Generally it can be set at + 20% to + 25% higher than ratedvoltage .When the supply voltage exceeds the set value, thesoft starter will produce fault alarm on thedisplay.(power supply over voltage alarm)Under voltage protection: The unit is KV: this parameter is to protect the device from working with too low power supply voltage.Generally it can be set at -35% lower than the ratedvoltage .When the supply voltage is below the set value,the soft starter will produce fault alarm on thedisplay.(power supply under voltage alarm)Transducer current: The unit is A: this parameters is the internal transducer data set by manufacturer, which is only to bemodified after the engineer input the password.start mode: Normal mode: in this mode, the motor starts from the "initial voltage", a set low voltage , according to a setstart time to improve output voltage linearly, until theend of start time.Low-frequency mode: especially suitable for the equipmentwith large mechanical friction and larger mechanicalinertia .In this case, the starter starts with 25 hz frequency,making the motor produce large starting torque with smallerstart current , significantly extending the service life ofequipment. (this function is applicable only for users withspecial heavy duty start requirement) To be notify beforeorder.low frequency voltage: The value is the set voltage value of low frequency running.The password for engineer modification : the password is 168.Pressing the reset button will reset the passwordｔｏｚｅｒｏ．Description for the fault alarm displayed on the screen in Chinese character :Motor overload alarm: The motor current has surpassed the overloadcurrent protection current value, and time is alsomore than the set overload time delay value .the input power phase loss alarm: There is a phase loss of three-phaseinput power of power controller. The input power shouldbe checked.motor current abnormal alarm: The motor three-phase winding has a phaseloss or three phase current is seriously imbalanced.Excess start time alarm: This is the alarm happening in the processof start, initially activated due to the reason"starting current limit" value is too small or "starttime" value is too short. This can be avoided byincreasing “starting current limit value" or"starting time" value. After normal operation, thealarm is caused by overweighted mechanical load, thereason of which should be find out before next start.Bypass switch fault alarm: When the equipment completes start goes intorun, if the bypass contactor is not closed, that isto say, L1 contact does not connect contact I9, in 5seconds the starter will stop and send the alarm.Alarm for motor residual current leakage: When the leakage current signalof residual current transducer connected with theanalog input port LH1 and LH2 is greater than the setleakage current protection value, the soft starterwill stop and generate this alarm.When a user firstinstalls and uses the equipment, he should carry onthe leakage current range adjustment and calibration.Over voltage of power supply alarm: When the supply voltage exceedsthe "over voltage protection” set value, the powersupply voltage is beyond the protection value.Power supply under voltage alarm: When the supply voltage is belowthe "under voltage protection " set value, the powersupply voltage is beneath the protection value.Power assembly damage alarm: Is there any damage or breaking down ofthyristor pack of phase A, B, C of the starter mainline, it will report an alarm.Attention! When the soft starter conducts the low voltage 380 v commissioning, "protection device" of the keypad should be set as forbidden; otherwise, it will produce a false alarm.Upon the stop caused by the above alarm, after finding out the reason and troubleshooting, pressing (reset) button on the keypad can clear the alarm.Medium voltage soft starter functions and requirements of external terminal serial number:一．Iinput and output for external connectionUPSL; UPSN: input for external 220 v power supply, by connecting the power supply, all controls within the soft starter work swell based on it.AC7; AC8: terminal of the coil control for the soft starter bypass medium voltage vacuum contactor (coil working voltage is AC220V) LH1，LH2： The secondary detecting coil input of the external residual current transducer.COM: input function control common pointI0.0: stop enabling terminal of soft starter; Normally closed contact, disconnecting its connection with COM, soft starter stops.IO.1: start enabling terminal of soft starter; Normally open contact, disconnecting its connection with COM, soft starter starts.I0.2: remote alarm reset terminal; When the port connects with COM , the soft starter stops immediately and goes into the initialization reset. This is used to remove an alarm and the external equipment interlocking protection.I0.3: alarm reset terminal; when this terminal connects with COM, the soft starter stops immediately stops immediately and goes into the initialization reset.. This is used to remove an alarm and the external equipment interlocking protection.I0.4: bypass operation.I0.5: terminal for cabinet door limit interlock ; when the terminal is connected with COM , the start button works; disconnecting htis point will cause the soft start cease to work. interlock protection used for starter panel door safety limitI0.6: external signal enabling terminal, used for both remote and local controlI0.7: control terminal for external interlock protection; Normally open contact, when the point is connected with COM , it can be used as external emergency stop and interlocking protection of the equipment .I1.0: The running signal sent by the main control board.I1.1: Soft starter ready signal sent by the main control board.I1.2: Alarm signal from the main control board.I1.3: input terminal for external remote start signal; when the point is connected with COM , the soft starter will start and run normally , when the point is disconnected with COM disconnect, soft starter stops immediately.I1.4: input terminal for external remote stop signal; when the point is connected with COM , the soft starter stops immediately.Two: Each output port:24 G: common point for output indicator controlQ0.0: vacuum circuit breaker closing indicator.Q0.1: vacuum circuit breaker breaking indicator.Q0.2: indicator for the operation of bypass contactor .When the soft starter switches to bypass this contact closes for bypass operation via vacuum contactor .Q0.3: SCR detection enabling. When there is any damage of SCR, this point sends out a fault signal and stops the motor .Q0.4: fault indicator.Q0.5: start indicator; for MV soft starter, in the process of starting, this point and 24 G have 24 v dc voltage output. When start is overand it runs with bypass operation, the indicator is off.Q0.6: fault reset enabling terminal, used to reset the fault signal of on the main board.Q0.7: main board run enabling terminal, used to control the start signal of the soft starter.Q1.0: indicator for remote control permission of the soft starterQ1.1: operation indicator light; When MV soft starter ends starting , bypass contactor is closed, the operation condition can be viewedby an external indicator.Low voltage commissioning wiring instructions; When you conduct low voltage commissioning for soft starter, you should connect thethree wiring terminal next to the upper incoming terminal onthe back of the starter with the terminal copper screw of main linerespectively. Namely the mentioned three terminals should beconnected respectively with the input A, B, C of the soft starter, and they are connected to 380 v power supply at the same time . Whenthe output of the soft starter R, S, T are connected to motor orresistive load bulb, you can carry out the the low voltage 380 vcommissioning.Attention ! （During the 380v low voltage commissioning, you must switch off the power supply breaker on the 220 v low voltage side of medium voltage transformer !This can prevent AC220V voltage from going to medium voltage power supply side through the medium voltage power transformer !Then connect a 220 v power supply to A21, B21 separately, at the same time, on the touch screen set the power assembly protectionfunction as invalid!Otherwise it will generate false alarm of device damage. )Three .adjustment instruction for the parameters of themain control board, as below:1. The adjustment of short-circuit tripping current; The main controlboard has the instantaneous trip protection function for the short circuit impact of the main line when the starter is working.The calibration adjustment method of the functionis as following;At the main control board current transformer input 1, 6 terminal, givea current signal, while 2 and 3, 4 and 5 are connected.Normally the short-circuit tripping current can be adjusted to 1.6 times that of the CT primary current. After conversion, the current at terminal 1, 6 is 8A, adjust the current to 8 A, then adjust the precision potentiometer P8, measuring the measurement holes DL0 on the right of IC4 , to get the voltage of 2.5 V or so, then adjust the P4 potentiometer, to make the relay next to socket DL1 and DL2 close, plus DL1 and DL2 close, the PLC controller will generate tripping alarm at this time.2. The calibration of residual current protection; Connect terminal2 of LH1-2 socket to the secondary terminal of residual current CT,put a current signal wire through the threading hole of CT, the current value is the residual current to be protected, adjust the precision potentiometer P10 to let the residual current on the touch screen display value being the tested value.3. Initial startup voltage adjustment; In general, this item need notadjustment, by setting the value of start voltage, it's possible to change the motor start voltage .If the start voltage has reached more than 70% , it meets the voltage value of start, at this time you can adjust the P5 potentiometer on the main control board, and measure the UY test hole on the left upper position of the potentiometer, make the voltage to be about 2-5 v. The higher the voltage, the higher voltage the motor start with.all aspects of the wiring diagram of AMVS MV Soft Starter ,please refer to the appended drawings: The requirement for the use of the product:Power supply: three-phase ac 2300-11000 vacThe range of the motor: three-phase medium voltage asynchronous motor. Start number: no more than 10 times per hour, start interval is greater than 6 minutes after the the previous start.Cooling method: natural air cooling or forced air cooling (depending on the size and working conditions).Installation method: fixed installation in the enclosure.Conditions of use: less than 2000 meters above sea level.When it is more than 2000 meters high, you should decrease the rated power and the number of frequent starting.Environment temperature in 25 to + 45 c, relative humidity is not more than 95% (20 c), no condensing.No corrosive gas, no conductive dust.Note：The user can choose corresponding MV Soft Starter according to motorcapacity . The soft starter of large size also can be sometimesused for small capacity motor.Selection of details:AMVS-080-V6-C12:AMVS---enterprise code080 currentV6 voltageC12 control voltageThe man-machine interface touch screen operation display of medium voltage soft starter:Touch screen operation instructions高压软起触摸屏画面共分为五个画面窗口，如下：1、medium voltage soft starter touch screen will be divided into fivescreen window, as follows:Run displayThis picture is mainly used as a display, including three phase current display, overload protection value, protection value for residual current, measured residual current, motor start current limit value, the circuit breaker closing status, preparing, remote/local state and the state of the motor start and run time.Among them the "alarm reset" is a button to click to reset the soft starter; Cabinet door limit can be choose as valid or invalid , i.e., being valid means when the cabinet door is open the soft starter is not allowed to start, if the cabinet door is open in the process of running the motor stops immediately , and it is not allowed to open considering the personal safety .Invalid refers to that when the cabinet door is open, the motor operation is out of control.Click the parameters setting to enter the parameter setup screen, click the alarm content observation to go into the alarm screen, click the control interlock observation to go into the picture of operation interlock.2、parameter settingThis picture is mainly to set some protection function of the soft starter, clickthe corresponding text box below to input value needed to be set.As below:alarm for power supply over voltage: over voltage protection for power supply. Click below text to input the preset value, the factory setting: 12alarm for power supply under voltage: under voltage protection for power supply. Click below text to input the preset value, the factory setting:7Soft start time: motor soft start time, unit Second, click below text to input the preset value, the factory: 10Soft stop time: motor soft stop time, unit Second, click below text to input the preset value, the factory setting:Initial start voltage: motor start voltage, normally set as 20% - 20%; click below the text to input the preset value, the factory setting: 30%overload current protection: 1.3 to 1.5 times of the rated motor currentOverload alarm delay: the factory setting : 0Maximum start current limit: generally as 3-4 times of the rated currentresidual current leakage protection: this function is set according to the ratio of transducer. For example, if the transducer ratio is 100/5, the residual current leakage should be set as 5: while the transducer ratio is 100/1, residual current leakage should be set as 1Click below text to input the preset value, the factory setting: 5The cuurent leakage alarm delay: the factory setting : 0short circuit tripping current: It's a second protection to prevent the motor current from exceeding overload current protection without protection , as a second protection. This function value is set to 3-4 times higher than that of overload protection value.Current transducer:100/5 Click below text to input the preset value, the factory setting: 100Kick start voltage: the factory setting: 0The permitted interval before next start : in order to prevent the loss of SCR withstand voltage and the reducing of the service life due to frequent start of soft starter .This function should be set more than 10 minutes before next start. The time is: preset value * 100 ms factory setting:6000Motor start mode:Click below text to input the preset value, the factory setting: soft startStart load setting: light duty/ heavy duty switchover Click below the text to input the preset value, the factory: light dutyMain circuit SCR detection: to detect the condition of SCR factory setting:detectionParameters change lock: Once this function is clicked, after it displays modification is allowed, it is allowed to modify the above functions; when modification is forbidden, it is possible to modify the function. the factory: modification forbidden3、Equipment alarm displayalarm for power supply voltage too high/ too low3 phase power phase loss alarmMotor current overload alarmabnormal motor current alarmmotor start timeout alarm (i.e., motor stalling)The bypass contactor fault alarmresidual current leakage alarmShort circuit trip alarmA phase SCR alarmB phase SCR alarmC phase SCR alarmThe main control board not readyalarm for cabinet door limit switch open4、operation interlock pictureThis picture is the observation of on/off state of control buttons on the cabinet door and of remote DCS control . Click on the view of PLC's contact to go into the PLC contact observation images, click back to go back to running picture.5、PLC contact observationThis picture is to observe the on/off state of PLC contact, click back to previous page to return to the run interlock picture, click back to initial picture to go to the run picture。
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