Inverters & Converters

Brand: Mitsubishi Product Name: servo driver model: mr-j4-70b1 axis servo amplifier. Mitsubishi universal AC servo amplifier melcervo-j4 series. Rated output: 0.75KW. Interface: sscnet Ш/ H。 Power supply: = phase ac200v The same server amplifier supporting sscnet Ⅲ / h. A fully synchronous system using high-speed serial optical communication can be established. It can be combined with the servo system controller to give full play to the functional performance of the servo system. By supporting the seismic algorithm of three inertial equipment, it can vibrate at two low frequencies at the same time. Mr configurator2 enables easy adjustment The low-frequency aftershock effect below 100Hz generated by the front end of the boom or the main body of the device can be effectively reduced, and the time required for aftershock control can be effectively shortened The accuracy of arc trajectory can be improved in the trajectory control of XY slide, At the same time, it can effectively control the quadrant protrusion caused by friction and distortion, Servo motor series: low inertia, medium and large capacity. Rated output: 15.0kw. Rated speed; 1500r / min. electromagnetic braking: without. Power supply: 200V. It is suitable for high-frequency operation or high acceleration and deceleration operation of medium, large capacity and low inertia products. Mitsubishi mr-j4-70b improves the environmental resistance. Hg-sr and hg-jr series products adopt IP67. High speed & high torque, shorten positioning time and realize high-speed equipment mr-j4-70b100 sites, there are 100 different drive controls. In order to meet diversified and detailed site needs as much as possible, In the configuration of mr-j4 product line, it provides rich servo amplifier and servo motor products. It can meet the different needs of different customers. Servo motor series: low inertia, small capacity. Rated output: 0.1kw Mitsubishi mr-j4-70b, rated speed: 3000r / min, electromagnetic braking: without. Power supply: 200V. The rated speed is 3000r / min and the large speed is 6000r / min. The high torque is 350% of the rated torque, realizing high knowledge transfer in the field of high rotation. It only supports hg-kr series products. Built in position encoder with high resolution Provide standard high-resolution position encoder (4194304p / rev (22bit)) to achieve more positioning function of Mitsubishi mr-j4-70b, Improve the environmental resistance. IP65 is adopted for hg-kr, hg-mr, hg-rr and hg-ur series products. Mitsubishi Electric general AC servo amplifier melcervo-j3 series. Rated output: 22.0kw. Interface type: CC link communication type (built-in positioning function) Mitsubishi servo driver. Power specification: three phase AC400V The positioning operation is realized by setting the position and speed data in the positioning table and receiving the start signal from the main controller. The setting of position, speed and other data in the positioning table and the start and stop operation can be completed through CC link communication. When the servo unit (dj-01-link) and (DJ-3) can not be used for positioning through communication, dj-01-link can be used for positioning. Using the servo amplifier with built-in positioning function, the position, speed and other data can be set through CC link communication. (corresponding to CC link version ver. 1.10) The Mitsubishi servo driver can be started, stopped and monitored through CC link communication. Serial communication reduces wiring The distributed servo control system can be constructed through CC link communication. The parameter unit mr-pru03 (option) makes parameter setting, operation and easier. The servo amplifier can be operated by dry speed control. When both stations are occupied, the speed command can be set directly through the remote passenger memory. Servo motor series: medium inertia, small capacity, rated output: 2.0kw. Rated speed: 1000r / min. electromagnetic braking: attached. Power supply: 200V. Realize the stable driving mr-j4-70b of medium capacity, medium inertia products, and realize the small total length in the industry through optimized structural design. High speed & high torque Mitsubishi mr-j4-70b can shorten positioning time, realize high-speed equipment and reduce power on torque ripple. By combining the number of poles and slots of Jiahua motor, the power on torque ripple is greatly reduced, and the smooth and constant speed operation of the equipment is further realized. To improve the environmental resistance, hg-sr and hg-jr series products adopt IP67

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The next generation servo product J4 is launched with safety specifications and eco correspondence. This product not only aims at the fastest speed in the industry, but also introduces the concept of the integration of human, machinery and environment into this product. ■ Mechanical aspect: the fastest speed frequency response performance of 2.5KHz in the industry is combined with the standard system equipped with 4194304 (22bit) decomposition for absolute position detector equipped with rotary servo motor. ■ Human aspect: towards human safety and comfortable environment, safety specifications correspond to the enrichment of easy to user design. ■ Environment: multi axis integrated servo driver with advanced function in eco era. ■ Inheritance: the combination of servo driver and controller of the previous model has a very corresponding design. Characteristic: Online products Generally, rotary servo, linear servo and direct drive servo correspond to the specifications of economic and environmental protection models with 2-axis integration and 3-axis integration. SSCNETⅢ/H Equippe , d with Mitsubishi's latest servo communication network, the data communication is the evolution of full duplex 150Mbps, the high response acceleration of the system, and the new generation products of optical fiber network are launched at the same time as J4. Advanced one touch functionality After pressing the setting torque once, the servo gain parameters such as mechanical common vibration filter and advanced vibration control filter II can be adjusted to help engineers easily achieve the optimal servo adjustment operation. Advanced vibration control filter II It has 3 low-frequency vibration control algorithms of inertial system, which can suppress two low-frequency vibrations at the same time. The vibration in the front end of the body and the corresponding device will be suppressed. Mr-j4 servo motor mr-j4-700b, a new product of Mitsubishi Electric in Japan Mr-j4 servo motor, a new product of Mitsubishi Electric in Japan 1、 Servo amplifier with conventional interface can correspond to 4mpps pulse frequency at most. 2、 Driver for motion control network sscnet Ⅲ / h. It is equipped with full closed-loop control as standard, which can drive rotary servo motor and linear servo motor. 3、 Driver for motion control network sscnet Ⅲ / h. It can drive two servo motors at the same time, saving installation space and wiring. It is equipped with full closed-loop control as standard, which can drive rotary servo motor and linear servo motor. 4、 Driver for motion control network sscnet Ⅲ / h. It can drive two servo motors at the same time, saving installation space and wiring. It is equipped with full closed-loop control as standard, which can drive rotary servo motor and linear servo motor. Mitsubishi mr-j4 series   MR-J4-A (general interface)    it has standard pulse sequence command interface and analog voltage input command interface    it can switch between various control modes such as position, speed and torque control   the standard supports command pulse frequency 4mpps   MR-J4-B(sscnet III / h interface)    the communication speed is 150Mbps and the communication cycle is 0.22ms    distance from wiring can be realized (maximum total extension distance 6400m: maximum 100m * 64 axis between stations)    because the optical fiber cable used is the same as the traditional sscnet III / h, it can be easily interchanged.   Mitsubishi servo amplifier mr-j4 series    mr-j4w3-b / mr-jw2-b (sscnet III / h interface, multi axis integrated servo amplifier)    it not only inherits the high performance, multi-function and convenience of mr-j4-b, but also drives two or three servo motors through one servo amplifier.    compared with mr-j4-b, mr-j4w2-b saves 25% - 30% installation space, and mr-j4w3-b saves about 30% installation space.   driver for motion control network sscnet Ⅲ / h. It can drive two servo motors at the same time, saving installation space and wiring. It is equipped with full closed-loop control as standard, which can drive rotary servo motor and linear servo motor.

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Fr-e740-1.5k-cht is an economical and high-performance type, 3-phase 400V power supply, and the motor capacity is * large and suitable for three standard 4- pole motors! Detailed parameters of fr-e740-1.5k-cht: 1. Power of fr-e740-1.5k-cht: 1.5kw 2. Current of fr-e740-1.5k-cht: 4A 3. Voltage of fr-e740-1.5k-cht: 3-phase 380 ~ 480v 4. Frequency of fr-e740-1.5k-cht: 50Hz / 60Hz 5. Allowable fluctuation range of voltage and frequency of fr-e740-1.5k-cht: 325 ~ 528v50hz / 60Hz (plus or minus 5%) 6. Power capacity of fr-e740-1.5k-cht: 4.5KVA 7. Overload capacity of fr-e740-1.5k-cht: 150% 60s, 200% 3S (inverse time characteristic) 8. Installation dimension of fr-e740-1.5k-cht: 140mm * 150mm * 135mm 9. Approximate weight of fr-e740-1.5k-cht: 1.9kg 10. Cooling mode of fr-e740-1.5k-cht: forced air cooling Selection method of fr-e740-1.5k-cht: 1. Fr-e740-1.5k-cht is selected according to the following load torque characteristics and is divided into the following three categories: (1) Constant torque load (2) Constant power load (3) Fluid load 2. Fr-e740-1.5k-cht is selected according to the control mode and is divided into the following five categories: (1) V / F open loop control (2) V / F closed loop control (3) Vector control without speed sensor (4) Vector control with speed sensor (5) Direct torque control Fr-e740-1.5k-cht selects the protective structure according to the use and installation environment: The protective structure of fr-e740-1.5k-cht should adapt to its installation environment, which requires consideration of environmental temperature, humidity, dust, pH, corrosive gas and other factors, which is of great significance to the long-term, stable, safe and reliable operation of fr-e740- 1.5k-cht. It is divided into the following four categories: (1) Open type (2) Closed type (3) Sealed type (4) Closed type 1. Select the frequency converter according to the load characteristics, If the load is constant torque load, Siemens MMV / MDV frequency converter shall be selected. If the load is fan and pump load, Siemens eco frequency converter shall be selected. 2. When selecting the frequency converter, the actual motor current value shall be used as the basis for the selection of the frequency converter, and the rated power of the motor can only be used as a reference. In addition, it should be fully considered that the output of the frequency converter contains high-order harmonics, which will deteriorate the power factor and efficiency of the motor. Therefore, the current of the motor increases by 10% and the temperature rise increases by about 20% compared with the power frequency power grid. Therefore, when selecting motor and frequency converter, this situation should be taken into account and appropriate allowance should be reserved to prevent excessive temperature rise from affecting the service life of motor. 3. If the frequency converter wants to run with a long cable, measures should be taken to restrain the influence of the long cable on the ground coupling capacitance to avoid insufficient output of the frequency converter. The frequency converter shall be selected by amplifying the first gear, or the output reactor shall be installed at the output end of the frequency converter. Shanghai Mitsubishi fr-e740-1.5k-cht 4. When the frequency converter is used to control several motors in parallel, the length of the motor cable and the allowable range of the frequency converter must be considered. If the specified value is exceeded, the frequency converter shall be selected by amplifying the first gear or the second gear. In addition, in this case, the control mode of the frequency converter can only be Vif control mode, and the frequency converter cannot protect the overcurrent and overload protection of the motor. At this time, it is necessary to add a fuse on each motor to realize the protection.

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Fr-d700 series Mitsubishi variable frequency governor compact multifunctional frequency converter 1. Power range: 0.47.5kw 2. General flux vector control, 150% torque output at 1Hz 3. Adopt long-life components 4. Built in Modbus RTU protocol 5. Built in brake transistor 6. Expand PID and triangular wave functions 7. Safety belt stop function FR-D720-0.4K, FR-D720-0.75K , , FR-D720-1.5K, FR-D720-2.2K, FR-D720-3.7K, FR-D720-5.5K, FR-D720 , -7.5K

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Function of braking resistance: 1 Protect the frequency converter; 2. Protect the power network. Braking resistance is a kind of ripple resistance, which is mainly used in the mechanical system of frequency converter controlling the rapid shutdown of motor. The firecracker motor converts the regenerative electric energy generated by the rapid shutdown into heat energy. The principle of resistance braking is that the rotor has current flow, which generates torque opposite to the rotation direction in the magnetic field of the stator, consumes the kinetic energy of the train, and achieves the purpose of braking. When the motor or other inductive load driven by the frequency converter stops, it is generally realized by energy consumption braking, that is, the kinetic energy of the motor and the magnetic energy in the coil are consumed through another energy consuming element after stopping, so as to realize rapid shutdown. Compent: Ceramic tube: it is the skeleton of alloy resistance wire and has the effect of radiator at the same time Alloy resistance wire: the flat belt has a wavy shape and is wound on the surface of the ceramic tube, which is responsible for converting the regenerated electric energy of the motor into heat energy The coating is flame-retardant on the surface of the alloy and has the characteristics of high temperature resistance Main hazards During the rapid shutdown of the motor, a large amount of regenerative electric energy will be generated due to inertia. If this part of regenerative electric energy is not consumed in time, it will directly act on the DC circuit part of the frequency converter. If it is light, the frequency converter will report fault, and if it is serious, the frequency converter will be damaged; The emergence of braking resistance solves this problem and protects the frequency converter from the harm of motor regenerative electric energy; Smooth operation The braking resistance directly converts the regenerative electric energy in the process of rapid braking of the motor into heat energy, so that the regenerative electric energy will not be fed back to the power network and will not cause grid voltage fluctuation, which plays a role in ensuring the smooth operation of the power network

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Condition: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. Terms: We ships worldwide and accepts T/T and Paypal. All items are subject to availability and passing our QA testing and inspection. Turnaround Time: Standard order processing is 1-2 business days plus shipping method chosen. Rush and off-hours service available for an additional fee. Packaging and Handling: Items are safely packaged in custom shipping cartons for protection. Shipping: We ship worldwide use UPS,FedEx, DHL or Truck Freight when meeded. Call to use a shipping service other than the ones listed. International Customers are responsible for all Customs fees, VAT and other fees applied by their respective countries. All shipments are fully insured.

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4-axis, differential driver output type. Control unit: pulse. Number of positioning data: 10 data / axis. Maximum pulse output: 4mpps. 40 pin connector. Differential output. Ideal solution for simple multi axis positioning. Perfect match with stepper motor control gi71e71-100 reference manual. The acceleration and deceleration are smooth and the speed changes slightly. The speed of starting processing of positioning control is accelerated. Locate the module. Open collector output type qi71e71-100 differential driver output type It can be divided into two types: open circuit collector output type and differential driver output type The output positioning module of the differential driver can reliably transmit the high-speed command pulse (up to 4mpps) to the servo amplifier, and the transmission distance can reach 10m to realize high-speed and high-precision control. (the maximum command pulse of open collector positioning module is 200kpps.) Reduce system downtime and recovery time. With a simple operation, you can back up all the data in the CPU to the memory card gi71e71-100 reference manual. Through regular backup, the latest parameters and programs can be saved to the memory card all the time. In case of CPU failure, after replacing the CPU, the system can be restored through simple operation and through the memory card with data backed up in advance. As a result, there is no need to spend time managing backup data, and the recovery time can be reduced when the system is down. Input and output points: 4096 points. Number of input and output components: 8192 points. Program capacity: 200K steps. Processing speed: 0.0095 us. Program memory capacity: 800KB. Support USB and network. Support the installation of memory card. High speed communication between multiple CPUs The fixed scanning interruption time is shortened and the device is high- precision. The minimum interval of fixed cycle interrupt program is reduced to 100US. It can accurately obtain high-speed signal, and realize high-speed control qj71e71-100 for parallel processing of device communication (cycle is 0.88ms). The high-speed communication cycle between multiple CPUs is synchronized with the motion control, so the operation efficiency can be maximized. In addition, the performance of the latest motion control CPU is twice that of the previous model Ensure high-speed and high-precision machine control. Slot 1: no power supply is required: install the large ans series PC module with a thousand. The base plate of ANS series PLC. Qa1s series PLC 1 slot main base plate. Ans series modules can be installed. rs-232 1ch。 rs-422/485 1ch。 Through qi71c24n (- 2) RS-232 serial communication, the programmable controller can be programmed and monitored with programming tools. Qi71c24n (- R2) has the function corresponding to the public telephone line modem. The modem used can be initialized, and the connection with the target equipment can be processed. The communication can be carried out through remote equipment and programming tools, modems and public telephone lines. Using the remote password function, The Q series programmable controller can be accessed illegally via the modem function of ai71c24n (- R2). Serial communication module that can collect / change data, monitor / manage, measure data collection, etc. of programmable controller. High speed and large capacity communication qj71e71-100 manual with maximum speed of 230.4kbps and maximum 9960 words (during MC protocol communication). The reading / writing qi71e71-100 Manual of the data in the programmable controller can be executed by using the MC protocol through external devices (PC, display, etc.). By selecting the non sequential protocol and using the sequential program for communication control, between the programmable controller and the external equipment (bar code reader, measuring equipment, etc.), Use the local protocol of the external device to communicate with it.

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Note: In order to prevent electric shock, the motor and frequency converter must be grounded before use. • Do not install the incoming capacitor or surge suppressor, radio noise filter to the output of the frequency converter. This will lead to the failure of the frequency converter or the damage of the capacitor and surge suppressor. If any of the above equipment has been installed, please remove it immediately. When it is necessary to set a non fuse circuit breaker at the output end, please consult the manufacturer for the selection of non fuse circuit breaker. • With regard to electromagnetic wave interference, the input / output (main circuit) of the frequency converter contains high-frequency components, which may interfere with the communication equipment near the frequency converter (such as AM radio). Therefore, EMC filters are installed to minimize interference. • For details of peripheral devices, please refer to the user manual of each option and peripheral device. • PM motor cannot operate on power frequency power supply. • Because PM motor is a motor with built-in permanent magnet, even when the power supply of frequency converter is disconnected, as long as the motor is still rotating, high voltage will be generated at the motor terminal. When the output switch is closed, turn on the power supply of the frequency converter and use it when the motor is stopped.

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DC reactor, also known as smoothing reactor, is mainly used on the DC side of converter and is widely used in general frequency converter. There is a DC current with AC component flowing through the reactor. The main purpose is to limit the AC component superimposed on the DC current to a specified value, keep the rectifier current continuous, reduce the current ripple value, improve the input power factor, and suppress the harmonic generated by the converter. effect DC reactors are connected in series on each pole of the converter station. The inductance is about 0.4 ~ 1.0h. Its main functions are as follows: (1) Prevent inverter commutation failure. (2) Reduce voltage and current harmonics in DC lines. (3) Reduce ripple coefficient. (4) Limit the current in the rectifier when the line is short circuited. However, it should be noted that the value of inductance must ensure that the DC circuit does not resonate at power frequency. DC reactor can increase the power factor to more than 0.9. Because of its small size, many frequency converters have installed DC reactors directly in the frequency converter. In addition to improving the power factor, the DC reactor can also weaken the impact at the moment when the power supply is just connected. If AC reactor and DC reactor are equipped at the same time, the power factor of variable frequency speed regulation system can be increased to more than 0.95. Structural design The DC smoothing reactor is used for the filter circuit at the output side of the rectifier circuit. Because there is a DC current component, the magnetic flux of the iron core works in the first quadrant, resulting in magnetic bias. In order to increase the inductance and prevent magnetic flux saturation, DC smoothing reactors adopt cut iron core and add air gap to lengthen their hysteresis loop laterally, which is a bit like the case of single ended flyback transformer in principle. In this way, when there is a current of the same size, B is small and not easy to be saturated. Four factors should be considered in the structural design of open core reactor: 1) The DC component I of the current flowing through the reactor, that is, the average value of the inductive current IL, determines the cross-sectional area of the winding conductor and the heating of the winding. 2) The peak to peak value of AC current component is expressed by △ IPP or abbreviated as △ I, which is determined by the continuity requirements of inductive current. Generally, without affecting the output voltage ripple, twice the minimum load current ilmin output by the rectifier filter circuit is the peak to peak of the required filter inductance current change. Thus: △ IPP = 2ilmin 3) The inductance L required by the filter circuit is determined by the frequency of AC current component and peak to peak △ IPP. It is an intermediate calculated value in the process of reactor structure design, rather than the primary factor to be considered in advance. 4) Power loss and temperature rise are factors that need to be considered in advance in the process of reactor structure design. There are more than one method to design DC smoothing reactor, and these methods are unified with each other. A simple, clear and practical engineering design method is introduced here. Its steps are as follows: (1) Calculated energy storage We know that if the inductance of the reactor is l and the current is I, the stored energy is W=1/2LI Because the highest flux density BM is determined by the maximum current in the reactor, I in the formula should be calculated according to the maximum current. If the DC current is I, the peak to peak value of AC current is △ IPP. (2) Select the material of iron core According to the proportion of AC component △ I in I, the frequency of AC component and the index requirements of inverter on its output noise, the material of reactor core can be selected. After the material is selected, the maximum flux density BM and the effective coefficient K of iron core section can be determined. Note that when selecting BM, it is generally required to leave a large margin, because the reactor is not saturated after half an inverter cycle of output short circuit (i.e. a normal rectifier cycle), so as to make the protection circuit act, so as to improve the working reliability of the inverter circuit. (3) Select the shape of the iron core and determine the window utilization coefficient KC According to the material, winding process and installation structure of the selected iron core, the shape of the iron core is selected, and then the type of conductor is selected according to the current level to determine the window utilization coefficient KC. (4) Select conductor current density coefficient kJ and current density J According to the heat dissipation conditions, the required copper consumption, the shape of the iron core and the allowable temperature rise of the wire package, select the appropriate current density coefficient kJ (refer to table 4.2) and the current density J of the conductor. (5) Calculate the cross-sectional area of the wire and select the wire The cross-sectional area of the conductor is calculated by the following formula: S = I / J; Then select the shape and size of the wire. (6) Calculate the number of winding turns When calculating the number of turns of reactor winding, we should consider making full use of the window area of iron core, so as to maximize the number of turns and leave a certain margin for BM. N=A·Kc/S

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Proximity switches are widely used in aviation, aerospace technology and industrial production. It is used in daily life, such as automatic doors in hotels, restaurants and garages and automatic hot air fans. In terms of security and anti-theft, important places such as data archives, finance and accounting, finance, museums and treasuries are usually equipped with anti- theft devices composed of various proximity switches. In measurement technology, such as length and position measurement; In the control technology, such as the measurement and control of displacement, velocity and acceleration, a large number of proximity switches are also used. Ime08-1b5pszt0s Order No.: 1040838 inductive proximity sensor Trigger sensing distance SN: 1.5 mm Mounting on metal: flush Shell shape: Standard Electrical specification: DC 3-wire Switching value output: PNP Switch function: normally open contact Connection type: plug, M8, 3-pin E3X-DA11-N Type: e3x-da11-n Order No.: 1040854 inductive proximity sensor Trigger sensing distance SN: 2.5 mm Mounting on metal: non flush Shell shape: Standard Electrical specification: DC 3-wire Switching value output: PNP Switch function: normally open contact Connection type: plug, M8, 3-pin E3X-DA11-N Type: e3x-da11-n Order No.: 1040837 inductive proximity sensor Trigger sensing distance SN: 1.5 mm Wiring diagram of proximity switch 1) Proximity switch has the difference between two-wire system and three wire system. Three wire proximity switch is divided into NPN type and PNP type, and their wiring is different. See the figure below: 2) The wiring of the two-wire proximity switch is relatively simple. The proximity switch can be connected to the power supply after being connected in series with the load. 3) Wiring of three wire proximity switch: the red (brown) wire is connected to the positive end of the power supply; The blue line is connected to the 0V end of the power supply; The yellow (black) line is a signal and should be connected to the load. The other end of the load is connected in this way: for NPN proximity switch, it should be connected to the positive end of the power supply; For PNP type proximity switch, it shall be connected to the 0V end of the power supply. 4) The load of proximity switch can be signal lamp, relay coil or digital input module of PLC. 5) Special attention should be paid to the type selection of three wire proximity switch connected to PLC digital input module. PLC digital input modules can generally be divided into two types: one type of common input terminal is the power supply 0V, and the current flows out of the input module (Japanese mode). At this time, NPN proximity switch must be selected; The other type of common input is the positive end of the power supply, and the current flows into the input module, i.e. well input (European mode). At this time, PNP type proximity switch must be selected. Don't make a mistake. 6) The two-wire proximity switch is limited by the working conditions. When it is turned on, the switch itself produces a certain voltage drop, and when it is cut off, there is a certain residual current flowing. It should be considered when selecting. Although the three wire proximity switch has one more wire, it is not troubled by adverse factors such as residual current and works more reliably. 7) Some manufacturers lead out the "normally open" and "normally closed" signals of the proximity switch at the same time, or add other functions. In this case, please make specific wiring according to the product manual. Slot type photoelectric switch wiring The diode of the photoelectric switch is a light-emitting diode, the output is a photosensitive triode, C is the collector, and E is the emitter. When a triode is used as a switch, the collector is usually used as the output. General connection method: the diode is the input end, e is grounded, C is connected to the load, and the other end of the load needs to be connected to the positive power supply. This connection method has a wide range of application. Special connection method: the diode is the input end, C is connected to the positive power supply, e is connected to the load, and the other end of the load needs to be grounded. This connection method is only applicable when the load equivalent resistance is very small (within tens of ohms). If the load equivalent resistance is relatively large, the working point of the switching triode may be abnormal, resulting in unreliable switching operation. In general industrial production sites, eddy current proximity switches and capacitive proximity switches are usually selected. Because these two proximity switches have low requirements for the environment. When the measured object is a conductive object or an object that can be fixed on a metal object, eddy current proximity switch is generally selected because of its high response frequency, good anti-environmental interference performance, wide application range and low price. If the measured object is non-metal (or metal), liquid level height, powder height, plastic, tobacco, etc. Capacitive proximity switch shall be selected. This kind of switch has low response frequency but good stability. The influence of environmental factors shall be considered during installation. If the measured object is made of magnetic conducting material or the magnetic steel is buried in the measured object in order to distinguish the object moving with it, hall proximity switch shall be selected, and its price is the lowest. Photoelectric proximity switches can be used in occasions with good environmental conditions and no dust pollution. When the photoelectric proximity switch works, it has almost no effect on the measured object. Therefore, it is widely used in fax machines with high requirements and tobacco machinery. In the anti-theft system, the automatic door usually uses pyroelectric proximity switch, ultrasonic proximity switch and microwave proximity switch. Sometimes, in order to improve the reliability of identification, the above proximity switches are often used in combination.

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Contactors are divided into AC contactors (voltage AC) and DC contactors (voltage DC), which are used in power, power distribution and power consumption. Broadly speaking, contactor refers to an electrical appliance that uses the current flowing through the coil to generate a magnetic field and close the contact in order to control the load. main features The AC contactor uses the main contact to open and close the circuit and the auxiliary contact to turn on the control circuit. The main contact is generally normally open contact, while the auxiliary contact often has two pairs of normally open contact and normally closed contact. Small contactors are often used as intermediate relays to cooperate with the main circuit. The contact of AC contactor is made of silver tungsten alloy, which has good conductivity and high temperature ablation resistance. The power of AC contactor action comes from the magnetic field generated by AC through the coil with iron core. The electromagnet core is composed of two "mountain" shaped young silicon steel sheets. One of the fixed iron core is sleeved with coil, and the working voltage can be selected. In order to stabilize the magnetic force, a short-circuit ring is added to the suction surface of the iron core. After the AC contactor loses power, it returns by spring. The other half is a movable iron core, whose structure is the same as that of a fixed iron core, which is used to drive the closing and breaking of the main contact and auxiliary contact. Contactors above 20 amps are equipped with arc extinguishing cover, which can quickly break the arc and protect the contact by using the electromagnetic force generated when the circuit is disconnected. The contactor can operate at high frequency. When it is used as the power on and off control, the maximum operation frequency can reach 1200 times per hour. The service life of contactors is very long. The mechanical life is usually millions to 10 million times, and the electrical life is generally hundreds of thousands to millions of times. working principle The working principle of the contactor is: when the contactor coil is energized, the coil current will generate a magnetic field. The generated magnetic field causes the static iron core to generate electromagnetic suction to attract the moving iron core, and drives the AC contactor to act. The normally closed contact is disconnected and the normally open contact is closed. The two are linked. When the coil is powered off, the electromagnetic suction disappears, and the armature is released under the action of the release spring to restore the contact, open the normally open contact and close the normally closed contact. The working principle of DC contactor is a little similar to that of temperature switch.

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0.75KW 1.5KW 2.2KW 4KW Single Phase Solar Pump Inverter For Solar Irrigation System Product Features: 1, Support both DC/AC input and 220V level 2, Support both single phase output and three phase output 3, Built-in C3 EMC filter for better harmonic and VDR grounding conforming 4, Widely working voltage can work as low as 350V-800VDC for 380V level and 200-410VDC for 220V level 5, Support input power from solar panels, on-grid power, generator.. 6, Can be used with solar panels in day time, at night with on-grid power or generator 7, Can switch between solar panels and on-grid power automatically Electrical Specifications 220V 380V Max input DC voltage 450V 810V DC voltage range 150~450VDC 300~810VDC N , ormal working DC voltage 260V-400V 400V-650V R , ecommended input mppt voltage 330V 550V MPPT efficiency >99% Rated output voltage 1/3-phase 220VAC 3-phase 380-480VAC Output frequency range 50/60Hz Max efficiency of the machine 99% Ambient temperature range -10 °C~50 °C, derating if the temperature is above 40 °C Cooling method Air cooling Protection degree IP20/IP21 Altitude Bel , ow 1000m; above 1% for every additional 100m. Standard CE/ROHS

Frequency converter is a power control device that uses frequency conversion technology and microelectronics technology to control AC motors by changing the frequency of the motor's working power supply. The Micctech frequency converter is mainly composed of rectifier (AC to DC), filtering, inverter (DC to AC), braking unit, drive unit, detection unit and micro-processing unit. The inverter adjusts the voltage and frequency of the output power supply by the opening and closing of the internal IGBT, and provides the required power supply voltage according to the actual needs of the motor, thereby achieving the purpose of energy saving and speed regulation. In addition, the inverter has many protection functions. , Such as overcurrent, overvoltage, overload protection and so on. With the continuous improvement of industrial automation, frequency converters have also been widely used. The energy saving of the frequency converter is mainly manifested in the application of fans and water pumps. After the fan and pump load adopts frequency conversion speed regulation, the power saving rate is 20% to 60%. This is because the actual power consumption of the fan and pump load is basically proportional to the third power of the speed. When the average flow rate required by the user is small, the fan and pump adopt frequency conversion speed regulation to reduce the speed, and the energy-saving effect is very obvious. However, traditional fans and pumps use baffles and valves for flow adjustment, the motor speed is basically the same, and the power consumption does not change much. According to statistics, the electricity consumption of fans and pump motors accounted for 31% of the national electricity consumption and 50% of the industrial electricity consumption. It is very important to use variable frequency speed regulation device on this kind of load. At present, the more successful applications include constant pressure water supply, various types of fans, central air conditioners and frequency conversion speed regulation of hydraulic pumps.

S300 vector control Variable Frequency Drive suit for most asynchronous and synchronous motor. It's easy to use and install. Micctech is professional at making servo drives for specified use, like wind turbines, construction hoist, machine tool spindle, brick making machine and others. While S300 is simplified for general use. It keeps the excellent quality and general used fundamental functions. Micctech is a high tech enterprise in Shenzhen, China, dedicated in developing and producing servo drives for machine tool spindle, high performance frequency inverter, fully integrated pitch servo drive, general use variable frequency drive, special use construction ac drives and oil servo solutions and so on.  Micctech has strong R&D ability,  and full of experience in serving kinds of big enterprises. On the other hand, Micctech has its own factory. Versatile workers, fully equipped developing and producing equipments, strict quality control progress. All of them make sure products from Micctech works efficient in their places. Take aging test during production as an example, each frequency drive will experience over 12 hours aging after assembly.