Siemens converter Heilongjiang agents

Siemens converter Heilongjiang Beijing, Dalian, Tianjin, Tangshan, Handan agents Shenyang, Changchun Jilin, Heilongjiang and Shanghai Baotou, Inner Mongolia, Xinjiang, Urumqi Qiqihar Zibo Hulunbeir Ordos Xingtai, Baoding, Cangzhou Yingkou Siping Harbin, Jinan, Shandong, Shaanxi and Shanxi, Lanzhou, Yinchuan, Shijiazhuang, Qingdao, Weifang Jining sunshine Binzhou Pingdingshan, Zhengzhou, Luoyang, Anyang, Xinxiang Baoding Zhangjiagang Qinhuangdao, Tangshan, Hebei Chengde Heng water Sichuan and Yunnan, Chongqing, Nanning, Kunming, Yuxi, Anshan, Fushun Hebi Wuhai Tongliao Tonghua Dandong Panjin Huludao Siping Baicheng Jiamusi, Mudanjiang, Changzhou, Suzhou, Nanjing, Wuxi, Xuzhou, Lianyungang, Nantong, Nanchang, Jiangxi Pingxiang Weihai Zigong, Panzhihua, Sichuan Chengdu, Xi'an, Baoji, Xianyang, Xianyang Taiyuan Siemens Frequency control: Abstract: Motherboard failure is often expressed as the system fails to boot, no display screen is difficult to visually determine the failure phenomenon. Maintenance methods listed below have their own advantages and limitations often require combination. A cleaning method can be used to brush gently brush the dust on the motherboard, in addition, some cards on the motherboard, chip pin form, often because of poor contact pin-oxidation. Eraser to the surface oxide layer and re-insertion. 2 observation to be repaired repeatedly to see the board and see if the plugs and sockets is skew, resistance, capacitance pin is touching the surface is scorched, the chip surface is cracking, copper motherboard is blown. Also look for foreign objects falling between the motherboard components. Encounter areas of doubt, you can look at the amount of aid multimeter. Some touch the chip surface, if abnormal hot, you can try for a chip. 3 resistors, voltage measurement in order to prevent accidents, in what should be measured prior to power-supply + 5V and ground resistance values ??(GND) between the motherboard. The most simple way is to measure the resistance of the chip supply pin and ground. When the power cord is not plugged in, the resistance should normally be 300Ω, the minimum should not be less than 100Ω. Test-retest about reverse resistance, slightly different, but not too much difference. If the forward and reverse conduction resistance is small or close to, and testified a short circuit occurs, you should check the short reason. Siemens DC governor maintenance instance Symptom normal power supply, LED display without first checking whether the CPU has to work? Observed with an oscilloscope, the clock frequency and data lines are normal pulse signal, CPU proved normal, but to the LED digital scanning signal A point should be a pulse but now it is the L level. Siemens DC drives LED display driver circuit after replacing the EPROM, A point pulse LED display properly. Learn to be repaired board functions, used in what equipment; failure to understand the phenomenon and causes. Second, the visual inspection: The surface of the circuit board cleaning dirt, careful observation, the board whether the ablation front and back, break, short circuit, the device with or without other obvious damage burst phenomenon. Third, the analysis: site failure may occur, develop a maintenance program. Fourth, the measure: a measure static resistance of the circuit board and the ground between the positive power supply, the power to determine whether a short circuit; two with a multimeter to measure some discrete components, such as diodes, transistors and other devices 3. Perform functional test tester. individually marked test results: good, bad, suspicious; 4 with ASA way comparison test, further judge good or bad; if the programmable device or program memory, the contents of a good plate read out and stored, performs fault board. Compare (record data file name in the maintenance records); 5 to power the board, measure the supply voltage is stable, and touch the device with or without overheating; oscilloscope waveform viewing device pins, as the signal on the bus, CPU clock signals; 6 alternate measure a variety of instruments, a comprehensive analysis of the test results, to improve the accuracy of judgment; 7 will be marked as "bad" and "suspicious" of the device removed for off-line test. Fifth, the replacement device: Remove all devices into new devices, multilayer devices on lower after welding to install outlet. Six, review: The new device is installed, the machine retest, the comprehensive examination. Seven test panels: If you do not return to normal, to see whether the same symptom with the previous repair, pay attention to the emerging symptoms. At the same time, understand the overall situation, the electrical connection of peripheral interfaces for repair. The quality of the power module is determined mainly on the freewheeling diodes in the power module of the judgment. For the IGBT module we need to have the trigger voltage is determined in the case of turn-on and turn-off ability. IGBT inverter module detects: digital multimeter appropriated diode test, test IGBT module c1 e1, c2 e2 between forward and reverse diode characteristics, to determine the IGBT module is intact as well as between the gate G and e1, e2. In the six-phase module as an example. The load side U, lead V, W-phase removal, using diode test, the red pen then P (collector c1), the black pen in turn measured U, V, W, multimeter display value is the maximum; will lead, in turn, black pen then P, the red pen test U, V, W, multimeter display value of about 400. Then the red pen then N (emitter e2), the black pen measuring U, V, W, multimeter display value is about 400; black pen then P, the red pen test U, V, W, multimeter display value is maximized. Between positive and negative characteristics of each phase should be the same, if there is a difference confessed IGBT module performance deterioration, should be replaced. When the IGBT module is damaged, only the short-circuit breakdown occurs. Red, black pen were measured both positive and negative gate G and the emitter E between the characteristics of the multimeter measured values ??are twice the maximum, then the gate of the IGBT module can be determined properly. If the value is displayed, the gate poor performance, this module should be replaced. When the test results are positive and negative zero, confessed detected a phase gate breakdown has been shorted. When the gate is damaged circuit board to protect the gate of the regulator will also breakdown. Inverter repair centers, skilled, reliable quality, lowest price, credit guarantee! Client-side staff check the inverter, power and found the slow rotating fans, power off, check the drive enclosure inside crowded with a lot of cotton, the cleaning is completed, the boot after the fan is running well, this failure does not happen again after running for several hours . In our drive in maintenance work, oh3 is a relatively common faults, for two main reasons: the load is too large, or the inverter temperature is too high. If the drive is too high temperature alarm occurs by checking the temperature sensor is normal, it may be caused by interference, you can put the fault masking. It should also check the cooling fan and heatsink ventilation inverter cooling fan replacement stall, slow rotating fan repair, cleaning the drive, eliminating the heat sink clogged. Meanwhile, attention should be paid to reduce the ambient temperature. 1. Functional testing can not replace parametric test 2. functional testing can only test the device off area, amplification and saturation regions, but can not understand the level and speed of the operating frequency of the speed at this time. 3. Digital chips, just know that there are high and low output changes, but can not detect changes in the speed of its rising and falling edges. 4. For analog chips, which deals with the simulation of variation. Its distribution by circuit components, to solve different programs affect the signal is complex. On the current line testing techniques to solve the analog chip line testing is impossible. Therefore, the results of the functional tests, only for reference. 5. Most of the online test meeting, after the chip on the board for all types of functional testing, will be given "test passed" or "test does not pass." So why not give it a device under test whether there is a problem? This is such a lack of shake tester. Online testing because too many factors, the impact on (interference). Requires a lot of action (such as a broken crystal, remove the chip CPU and with the program, plus an interrupt signal isolation, etc.), whether this is valid, worthy of study before the test. At least, the current test results are sometimes unsatisfactory. 6. Learn line tester readers are aware there are so jargon. "Chips online test is not passed is not necessarily damaged; Chip tested must be undamaged," it is interpreted as, if the device is online influence or interference, the results may not be passed, this is easy to understand . So, when the chip is damaged during the test, will come "does not pass" mean? Answer really not sure. I have met with their peers, obviously chips have been damaged (rather put this chip board does not work), but the test results are passed. Authoritative explanation for this is the tester's own works (after drive technology) due. Therefore we can not place undue reliance on online tester (although the manufacturers propaganda is very mysterious) role, or will repair circuit boards work astray. Inverter repair centers, skilled, reliable quality, lowest price, credit guarantee! Causes the inverter drive failures there are many common inverter drive failure phenomenon: U, V, W three-phase output, or output unbalanced, then, or in the low-frequency output balance, but when the jitter, as well as start the alarm and so on. According to the maintenance engineer's experience, when a large capacitor inverter open after fast-acting, or is under the IGBT inverter module damaged, the driver circuit basically impossible intact, must not put on a good fast-acting or reverse IGBT change module, it is easy to cause damage to the good just put the device again. This time should be focused on whether the driving circuit ignition check mark, where you can drive the first leg IGBT inverter module wiring unplug electrical barrier with a multimeter to measure the resistance of the six-way driver circuit is the same (but very few Drive six-way driver circuit resistance are not the same, F026 alarm such as Mitsubishi inverter, Fujitsu converter. A Siemens 6SE7085 inverter, each boot time a few seconds or tens of seconds after the emergence, when the presence of the technical staff suspect IGBT has a problem, but not sure. So the same model with a 75KW inverter CUVC board substitution, and after the appropriate parameter settings, start running normally. Because so many times before this inverter overload, overload it because it appears F026 alarm, the customer technical staff could not be sure. Also, the damage to the CUVC board is able to fix it? What are the specific reasons for CUVC board is it damaged the following reply, I hope we can provide some valuable information. Check the following 1, in the L2-phase short-circuit or ground fault (-X2: V2 - including motor); 2, CU board is inserted correctly; 3, SAFE OFF switch (X9 / 5-6) is open drive repair Siemens converter. maintenance of Siemens 6SE70 drive repair drive repair Xinxiang, Hebi drive repair, drive repair Anyang, Puyang drive repair, drive repair Jiaozuo, Jiyuan drive repair, drive repair Luoyang, Sanmenxia drive repair, drive repair Kaifeng Xuchang drive repair, drive repair Zhoukou, Shangqiu drive repair, drive repair Luohe, Pingdingshan drive repair, Xinyang drive repair, drive repair Nanyang, Zhumadian drive repair, drive repair, Shanxi, Shandong, drive repair Zhengzhou and other drive repair sales center drive repair sales center, skilled, reliable quality, lowest price, reputation and ensure customer inquire 6SE7031-2EF60 Siemens converter repair technical problems:! inverter power display O008, A017 , alternating parameter settings after inspection without problems after restoring the factory settings, and alarm F035, drive repair Siemens Siemens inverter drive repair service reported O008 reply it as follows: 1, if you have to restore the factory settings, then the parameter P575 affirmation of the value of 1. At this point, it is impossible to report the fault F035, unless the value of P575 is not for 1. drive repair Siemens Siemens inverter drive repair service reported O008 Fault 2, if the value of P575 is not a case, to see how much their specific value, which corresponds to the digital input terminal to find because of what causes this digital input terminal receives low-level signals. (eg: the terminal signal cable disconnection, etc.) 3, If no special definition of external fault, then the value of the parameter P575 can be directly fixed to 1. The drive repair Siemens Siemens inverter drive repair after repair O008 newspaper, and gives the following explanation I hope we can provide some Some valuable reference. In fact, Siemens 6SE7031 inverter displays O008 is to start prohibition state is the normal state standby ago. Thinking in drive repair can refer to the following: 1. The parameter r550 Bit0 of view ON / OFF1 enable signal is high, if there is this signal is at standstill, start inhibit signal is generated to display o008 . At this point as long as the ON / OFF1 signal is canceled PMU display will become O009. Drive repair Siemens Siemens inverter drive repair service reported O008 Fault 2, if Bit0 of r550 is low, you need to check the control word r550 of Bit1, Bit2, it should have a high level, then the corresponding parameter P555 ~ P560 should all be as one (or a parameter value or actual value of its connector 1) can. 3, when the source P590 BICO parameter set switching 1 = 0 BICO parameter set to take effect, all P *** subscript B parameters of an effective; when P590 = 2 take effect BICO parameter set to 1, all P ***. 2 subscript B parameter is valid. To prevent switching BICO parameter group after the entry into force of the new parameter index values ??do not satisfy the above conditions caused o008 state, temporarily make P590 = 0, only the BICO parameter set a force, then after the completion of the investigation in accordance with the method described above can be changed back to the original value. 4, observed PMU inverter display, along with o008 state whether there A017 alarm outside. If you need to check for 6SE7031-2EF60 inverter X9 terminals 5 and 6 are shorted. Using the above method, you can solve most of Siemens inverter alarm O008 phenomenon. In this paper, the author discusses the operation and practice in the field for many years in the drive, summed up some experience and methods of effective inspection and maintenance, has good practicality and maneuverability, you can check for other types of drive and maintenance provide important reference for value. Keywords: Drive inspection, maintenance I. Introduction With the development of modern electronic technology, performance AC drive motor speed with each passing day, because it has a wide speed range, high accuracy, fast dynamic response, high efficiency, power factor, easy to operate and easy contact with other equipment, and many other advantages, making more extensive use of the inverter. But it is still at the core of semiconductor machinery, in order to prevent the normal operation as soon as possible due to the effects of temperature, humidity, dust, vibration and other environmental factors, and the use of parts of the aging and failure, etc., the impact of the equipment, it must be regularly its necessary checks and maintenance. The following is the author of many years of operation in the field and practice of Mitsubishi inverter, summed up the experience and some effective methods to check maintenance. Second, routine inspection and maintenance routine inspection and maintenance check whether it appears that the following anomalies in running state. 1, the installation environment is abnormal, that the ambient temperature with a thermometer to check whether or not frozen between -10 ℃ ~ + 50 ℃, humidity with a hygrometer to check whether or not condensation around 90% or less. 2, the refrigeration system (freezing fan) is abnormal. 3, if there is any abnormal vibration, sound. 4, if there is abnormal overheating, discoloration. 5, instrument instruction is abnormal, you can use a multimeter to check the input and output voltage of the inverter when necessary. Third, regular inspection and maintenance of regular inspection and maintenance are required to stop operation of the drive on a regular basis, in order to check the maintenance of the project, which is about once a year cycle. When a power outage, pay attention to the inverter power off shortly after, still in high voltage capacitor charging status. During inspection, maintenance, to the printing plate after the charge indicator light goes out of state, and confirmed between the inverter main circuit terminals P and other measuring instruments with a multimeter, voltage can be carried out in N, DC30V following later. A measuring insulation resistance: new investment, to stop running for a long time or have to be reinvested measured insulation resistance repaired drive reinvested. (1) conduct an external circuit megger test, you need to remove all of the terminals of the inverter, so that the test voltage is not applied to the inverter; (2) the control circuit continuity test with a high resistance range multimeter Do not use megger and buzzer; (3) megger test drive of the fuselage, the implementation only in the main loop, remove the inverter wiring terminals R, S, T, U, V, W shorted together with 500VDC megger resistance between it and the ground terminal should be 5MΩ above; 2, fixed inspection and strengthen fixed: Due to the effects of vibration, temperature changes, screws, bolts and other fasteners loosening, should always inspection, maintenance, and tighten. 3, observe conductors, insulators corrosion damage has occurred, the outer conductor is broken; the terminal block is damaged, if the contacts rough dry, cracked; 4, according to the environmental conditions, regular use of an electric fan inside the inverter and cooling air duct dust cleaning, keep it clean. 5. Check the smoothing capacitor: In the main circuit DC as part of a large-capacity aluminum electrolytic capacitor with a smooth and stable control loop used to control the power of the electrolytic capacitors, the influence of the surrounding environment and conditions of use great, it's been aging will rapidly accelerate certain period, therefore, should at least once a year. When the smoothing capacitor occurs: (1), the housing state: side surface, a bottom surface of the expansion of the size of the housing becomes large. (2) sealing plate states: obviously bent extreme cracks. (3), the state of explosion-proof valve (safety valve): The significant expansion valve, has the action. (4) Other: appearance of the packaging cracks, leakage of the liquid has been discolored and the like, or its capacity was measured with the capacity, when its capacity to 80% of its rated capacity, it can determine its life has expired, shall be replaced. 6. Check the inverter module and the rectifier bridge modules: inverter module and the rectifier bridge module is the core component of the inverter, its inspection methods are as follows: (1) Remove the power cord and external connection (R, S, T ) and motor cable (U, V, W). (2), ready for the multimeter, using grades for 1Ω resistance measurement profile. (3) in the drive terminal block R, S, T, U, V, W, P, N at the polar exchange multimeter to measure their conduction state, when not turned on, the multimeter will indicate ∞ value; conducting, multimeter indication dozens of Europe, since the module type, the number of modules, such as the type multimeter its value is not the same, but the value is almost equal, you can determine which is good. Common method for detecting ________________________________________ drive repair inverter routine maintenance process, often encounter a variety of problems, such as peripheral line problems, parameter setting bad or mechanical failure. If the drive fails, how to determine which part of the problem, where a brief introduction. First, a static test, the test side rectifier circuit to find the P and N-terminal of the inverter internal DC power supply, the multimeter resistance X10 file transferred, the red bar received P, black bars, respectively, according to the R, S, T, should There are about dozens of Europe's resistance, and basic balance. In contrast to the black side bars connected to P, the red bars turn received R, S, T, there is a near infinite resistance. The N-terminal connected to the red bar, repeat the above steps should get the same results. If you have the following results can determine the circuit is abnormal, A. Resistance unbalance, can explain bridge rectifier failure. B. When the red end of the rod connected to P, infinite resistance, it can be concluded starting resistance bridge rectifier failure or malfunction. 2, the test inverter circuit will receive the red stick P side, and black bars respectively connected U, V, a W, there should be dozens of Europe's resistance, and the resistance of each phase is basically the same, RP should be infinite. The black bar table receiving the N-terminus, repeat the above steps should get the same result, as it may determine two inverter module failure, the dynamic tests later in the static test result is normal, before the dynamic test, the power test machine. Before and after the power must note the following points: 1, before the power, make sure the input voltage is wrong, will appear 380V 220V class inverter power access into the bombing (fried capacitors, varistors, modules, etc.) . 2. Check whether the drive each broadcast outlet is properly connected, the connection is loose, the connection may sometimes lead to abnormal drive fails, there will be serious bombing and so on. 3, after power failure detection display, and a preliminary determination and the reasons for failure. 4. If it does not malfunction, first check whether there are abnormal parameters, and parameters after reversion, no-load (not connected to the motor) start the drive case and test the U, V, W phase output voltage. In case of phase, phase imbalance, etc., then the module or driver boards faulty 5, when the output voltage is normal (non-phase, three phase), and load testing. When tested, the best full load test. Third, the failure to determine a rectifier module damage is usually due to the grid voltage or internal short circuit. Under the exclusion of an internal short circuit, replace the rectifier bridge. When the scene failure, should focus on checking the user grid conditions, such as grid voltage, with or without the grid welding machine and other polluting equipment. 2, inverter module damage is usually due to the motor drive circuit or cable damage and malfunction caused. After repairing the drive circuit, the measured drive waveform good condition, replace the module. After replacing the drive plate in field service, you must also pay attention to check the motor and connecting cables. In determining without any fault, run the inverter. 3, no display power-switching power supply is usually due to damage or soft charging circuit damage caused by the DC circuit without DC, such as the startup resistor is damaged, there may be damage to the panel. 4, after power display overvoltage or undervoltage, usually because of the input phase, the circuit board damp caused by aging. Find out the voltage detection circuit and the detection point, the replacement of defective devices. 5, after power on display over-current or short circuit to ground is generally due to the current detection circuit is damaged. Such as Hall elements, such as op amps. 6, the start-up display is generally over-current drive circuit or due to damage caused by the inverter module. 7, no-load output voltage is normal, after the load display overload or overcurrent that case is usually due to improper parameter setting or driver circuit aging, damage caused when the inverter module has been confirmed when a sufficiently large output torque (current) will issue an "open brake command, the mechanical brake controller begins energized; set a" logic when other conditions are met when the inverter brake opening time tod confirm mechanical brake has been opened, after the "brakes after opening time tod by controlling deserting able to control the internal functions, so that the inverter starts rose to the required speed along the curve speed mechanical load brake control process to start the process shown in Figure 5 in 1 (2) stop the mechanical load brake control the process of setting a "brake closed ncs speed drive set a" speed brake closed ncs, when the brake is closed in order to ensure there is enough torque motor, the load will not decline, set a threshold of closed brake torque value ncs, Brake closed threshold signal typically use speed signal; issued a "brake closing command inverter stops running, when the External reference enable and external speed signal to stop, drop velocity along the drive speed curve, when the drive detects ncs (eg 5% of the rated speed), the inverter will output a "brake closed signal, power-off brake issue instructions; set a" brake closing time after confirmation tcd mechanical brake when the drive has been closed, after the "brake open closed tcd, by controlling function block inside the inverter to the reference enable (motor excitation) and the inverter is enabled, the inverter will immediately stop working. mechanical load brake control process stops when the process is shown in Figure 5, 5 to 7. 2.4 Universal Drive mechanical brake control function and engineering mechanical brake inverter comparison project frequency compared with the general frequency mechanical brake control function, and its main advantages are the following three aspects: 2.4.1 General control methods and ideas Because of the limitations of their own type converter, it can apply the resources are not many applications provided by the drive output point for the design of the mechanical brake switch function, these are just the same level of control signal; and Engineered Drives with programmable sex, collected from a variety of internal signals can be programmed to provide direct or use mechanical brake function, project type has a dedicated internal mechanical brake function module, which uses rs trigger controller, off mechanical braking condition of priority, for machinery brake function is the most reasonable and safe, so control methods and ideas of mechanical engineering inverter braking function is more reasonable. 2.4.2 control performance and precision mechanical brake function universal inverter control using plc, also the mechanical brake function can be considered more conditions, but the inverter plc collected data through communication, etc., and then do the time the mechanical brake logic control system has at least one cycle of execution plc program and calculated results, and then through the output module control the mechanical brake controller, add even 200ms, high-precision requirements for the load (eg elevator system), it is difficult to tolerate. For engineering-type converter, mechanical brake control logic computation time, but time is a hardware computing, engineering machinery inverter braking function allows the drive to control the performance and accuracy of the highest. 2.4.3 Safety performance general-purpose inverter control mechanical brake control only collect drive signal to the inverter without any information and control, mechanical brake control function works inverter provides internal drive to deserting and inverter can enable two control signals, both through internal signals to control the drive inverter given start and stop, open and close the mechanical brake when the drive is running with mechanical brakes, as well as to protect the inverter safe load, mechanical engineering inverter brake function enables the drive has a higher safety performance. Features and mechanical braking three Siemens Siemens 6se70 3.1 6se70 inverter drive features Siemens 6se70 digital vector control inverter device belongs simovertmasterdriv series, is a high-performance inverter Siemens currently outstanding products, its all-digital control functions and powerful software , monitoring, recording and protective functions, the stability of plant operation for its reliability provide a guarantee. Its optional control functions, both frequency selective pressure control, you can select the vector control, scalar control, suitable for a variety of different load characteristics requirements; flexible parameter settings, you can easily modify the parameters, control; compatible communication functions that can communicate with other control systems; by parameter selection, the drive either locally controlled, can also be remotely controlled via the fieldbus communication network composed. 3.2 6se70 Siemens Siemens inverter mechanical braking 6se70 series inverter mechanical brake is very powerful, programmable inverter works show the advantages of the head, the mechanical brake control function: they have no control of external mechanical brake, external Without mechanical brake control mechanical brake testing and external mechanical brake control in three ways with mechanical brake testing, and the use of a mechanical brake function can control the drive to reference enable inverter enables the inverter to make a quick stop its control block diagram shown in Figure 6. 3.3.1 mechanical brake control function to realize the principle of 3.3 6se70 Siemens Siemens inverter mechanical braking mechanical brake control is the use of the principle of rs trigger, open the mechanical brake (s) the relationship is "all conditions and all have to start mechanical brake, the mechanical brake off relationship (r) is "or with a mechanical brake off condition to shut the mechanical brake, and rs is reset priority flip-flop, in the practical application of the mechanical brake is a mechanical brake is closed first, this For more secure way to control the mechanical brake control. You can get two internal switch signal through rs trigger, which is connected to the switch output point of the inverter can be achieved to control a mechanical brake controller; while the mechanical brake control function can be generated inside the inverter and the inverter to deserting enable control signal, you can choose to use the actual needs of a given control of the internal inverter and the inverter on and off based on. The composition shown in Figure 3.3.2 mechanical brake control 6 is a functional block diagram of mechanical brake Siemens converter, can be divided into seven sections: open mechanical braking conditions, off the mechanical brake condition, mechanical brake switch control signal controlling a given integration enable signal, control inverter enable signal to open the mechanical brake detection alarm signal off the mechanical brake detection alarm signal. The main part are as follows: (1) open the opening of the mechanical brake mechanically braking condition is the logical relationship "and, that is, all the conditions are met in order to open the mechanical brake, in this function, a total of four conditions in which the motor fixed excitation conditions, the other three conditions can be set may be set parameter p608 two switching control signal, typically using a drive operation signal (b104) can be; the most important function is set to open setting parameter p610 mechanical brake control threshold is defined with reference to the amount of choice, often used in current signal (kk242), p611 is the percentage of the nominal value of the reference signal, is defined according to the actual needs, typically about 20% open mechanical braking condition The principle parts shown in Figure 1 6. (2) Off Off mechanical brake mechanically braking condition (r) of the condition is "or with a mechanical brake off condition to shut mechanical brake, in this function, a total of There are six conditions, including the power to stop the fixed condition, the other five conditions can be set. P609 parameter can be set four switching control signal, typically using an inverter is not running signal (b105) can be; in the feature set is the most important thing is off the mechanical brake control threshold setting parameters defining p615 reference quantity selection, often used speed signal (kk148 or kk91), p616 is the nominal value of the percentage of the reference signal, according to the actual need to define, generally about 10%, to note that the parameters p617, use this parameter to check the mechanical brake signal from a lower edge signal into a wide pulse signal, often defined as 0.5s, off the mechanical brake threshold signal needs to stop signal, no fault signals and parameters p614 in a constant 1:00 valid. Off the principle of mechanical braking condition parts shown in Figure 2 6. (3) switch mechanical brake control signal after rs trigger, to give the two mechanical brake control signal to open the mechanical brake control signal (b0275) and off mechanical brake control signal (b0276), switch mechanical brake control signal Principle 3 parts shown in Figure 6. (4) Control Points enable signal given by Siemens inverter parameter p605 choice of three mechanical braking control mode, when you select for non-mechanical brake (p605 = 0), the given integral enable signal (b0277) normally one; when you select a mechanical brake without detection information mode (p605 = 1), when the mechanical brake signal is turned by the parameter p606 after the time set to start deserting the internal energy, stop, when mechanical brake signal is closed after parameter p606 by the time set for deserting blockade internal energy; when selecting a mechanical brake with detection information mode (p605 = 2), when the mechanical brake signal turns on the parameter p606 set time and detects the brake open signal, to start deserting internal energy, mechanical brake signal when closed, the time set by parameter p606 and after detecting the mechanical brake return information for reference enable internal blockade . Application of this function should be defined as a control word p564 b0277, mechanical brake control is enabled for a given integral part of the principle shown in Figure 4 and 6 (5) control of the inverter enable signal to control the inverter enable signal primarily from off machinery When braking conditions off the mechanical brake control signal threshold, the system starts the inverter enable signal (b0278) is a signal, the drive is selected as no mechanical brake (p605 = 0), the pass threshold mechanical brake control signal conditions are met, the inverter immediately blocked enable signal; selecting a mechanical brake without detection information mode (p605 = 1), the mechanical brake off when conditions are ripe, passed parameter p607 set time delay blockade Internal enable signal inverter; is selected with a mechanical brake with detection information mode (p605 = 2), when the mechanical brake off control signal threshold conditions are met, the time set by the parameter p607 mechanical brake and the return signal is detected Immediately after the blockade internal inverter enable signal. Application of this function should be defined as a control word p561 b0278, mechanical brake control inverter enable principle shown in Figure 6, section 3.3.3 5 mechanical brake control output signal Siemens converter mechanical brake control signal can be applied to three Output ways: (1) the use of switch output point x101 (+ 24v); (2) by extending the switch signal output eb2 board (+ 24v); (3) the use of 4,5 x9 terminals (one pair 220v passive point) output. Practical application, control voltage mechanical brake controllers generally use 220v, using the first two outputs, relay control signals need to use conversion, the middle part of the increase is to increase the control of the time and point of failure. In the above three kinds of output processes, application control signal x9 (4,5) directly involved in the mechanical brake controller output for the best. 4 Siemens 6se70 drive mechanical brake function in Jigang sublance application [4] 4.1 Jigang sublance lifting frequency control system Jigang three steel project is bigger and stronger Jinan Iron and Steel Group, the focus of the project, its converter Control System Danieli - Sri Lanka's deputy recreational gun technology. Sublance electric drive control system includes sublance lifting drive system, sublance rotary drive systems, apc system (probe automatic loading device). 4.1.1 sublance lifting device driver sublance lifting equipment is located on the winch platform, including a 55kwac motors, dc brake, gear boxes, winches, generator speed for speed control and two for height measurement of the pulse generator (second pulse generator is installed for security point of view). Once the error is not allowed between the pulse generator appears only at low speed drop the gun and put the gun to stop operating. By accident the way, you can make by accident sublance dc converter from the battery, in addition, no other action. Sublance lifting control technology requirements as shown in Table 1. We recommend you drive 440 Siemens Siemens inverter 430, 420 Tianjin spot Siemens converter, Siemens converter 440, Siemens inverter 430, 420 series Siemens converter core agents, if you have a Siemens drive this demand, questions please contact us 6SE6430-2UD33-7EB0 6SE6430-2UD34-5EB0 6SE6430-2UD35-5FB0 6SE6430-2UD37-5FB0 6SE6430-2UD38-8FB0 6SE6430-2UD41-1FB0 6SE6430-2UD41-3FB0 6SE6430-2UD41- 6GB0 6SE6430-2UD42-0GB0 6SE6430-2UD42-5GB0 MICROMASTER 420 series (low-power) 6SE6420-2UD13-7AA1 6SE6420-2UD15-5AA1 6SE6420-2UD17-5AA1 6SE6420-2UD21-1AA1 6SE6420-2UD21-5AA1 6SE6420-2UD22-2BA1 6SE6420- 2UD23-0BA1 6SE6420-2UD24-0BA1 6SE6420-2UD25-5CA1 6SE6420-2UD27-5CA1 6SE6420-2UD31-1CA1 SINAMICS V10 Series (low power) 6SL3217-0CE15-5UA0 6SL3217-0CE17-5UA0 6SL3217-0CE21-1UA0 6SL3217-0CE21-5UA0 6SL3217-0CE22-2UA0 6SL3217-0CE23-0UA0 6SL3217-0CE24-0UA0 6SL3217-0CE25-5UA0 6SL3217-0CE27-5UA0 6SL3217-0CE31-1UA0 6SL3217-0CE31-5UA0 6SL3217-0CE31-8UA0 6SL3217-0CE32-2UA0 drive accessory 6SE6400- 0BP00-0AA0 6SE6400-0BE00-0AA0 6SE6400-0AP00-0AA1 6SE6400-0AP00-0AB0 6SE6400-0EN00-0AA0 6SE6400-1PB00-0AA0 6SE6400-1PC00-0AA0 6SE6400-0PM00-0AA0 6RA2418-6DS21-0 6RA2425-6DS21-0 6RA2431- 6DS22-0 6RA2475-6DS21-0 6RA2481-6DS22-0 6RA2485-6DS22-0 6RA2818-6DS21-0 11KG 6RA2825-6DS21-0 14KG 6RA2828-6DS21-0 14KG 6RA2831-6DS21-0 16KG 6RA2875-6DS21-0 23KG 6RA2877- 6DS21-0 23KG 6RA2881-6DS21-0 31KG 6RA2885-6DS21-0 31KG 6RA7018-6DS22-0 6RA7025-6DS22-0 6RA7028-6DS22-0 6RA7031-6DS22-0 6RA7075-6DS22-0 6RA7078-6DS22-0 6RA7081-6DS22- 0 6RA7085-6DS22-0 6RA7087-6DS22-0 6RA7091-6DS22-0 6RA7093-4DS22-0 6RA7095-4DS22-0 6RA7098-4DS22-0 6RA7025-6GS22-0 6RA7093-4GS22-0 6RA7095-4GS22-0 6RA7096-4GS22- 0 6RA7088-6KS22-0 6RA7093-4KS22-0 6RA7095-4KS22-0 6RA7097-4KS22-0 6RA7018-6FS22-0 6RA7025-6FS22-0 6RA7028-6FS22-0 6RA7031-6FS22-0 6RA7075-6FS22-0 6RA7078-6FS22- 0 "6RA7082-6FS22 -0"