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The working principle of the constant pressure water pump is as follows:

1. The VFD drives the water pump, and the pressure sensor/transmitter feeds back the pressure signal to the VFD to form a closed loop system.
2. When the water pipe pressure is less than the set value, the VFD wakes up and starts pumping water.
3. When the pressure does not reach the set target, the operating frequency will continue to increase to the rated frequency of the pump.
4. When the pressure is greater than the set pressure, the operating frequency will decrease.
5. When the pressure is greater than the sleep pressure, the frequency decreases to the sleep frequency for a period of time, and then stops pumping water.
6. When the pressure is lower than the wake-up pressure, the pump starts to run again.

An alternator is an electrical generator that converts mechanical energy to electrical energy in the form of alternating current. For reasons of cost and simplicity, most alternators use a rotating magnetic field with a stationary armature. An alternator that uses a permanent magnet for its magnetic field is called a magneto. Alternators in power stations driven by steam turbines are called turbo-alternators.

The use of air compressors is very extensive. It can be used in instrument control and automation devices, such as tool change in machining centers.

The proximity sensor is the general name of sensors that replace the contact detection methods such as limit switches and do not need to contact the detection object for the purpose of detection. It can detect the movement information and existence information of the object and convert them into electrical signals.

Brix refractometers are a common instrument used to measure the sugar content of a solution. Increasing sugar content leads to an increase in the refractive index. By passing light through a sample and measuring the refraction, the amount that the light bends, the sugar content can be measured.

A programmable logic controller (PLC) or programmable controller is an industrial computer that has been ruggedized and adapted for the control of manufacturing processes, such as assembly lines, machines, robotic devices, or any activity that requires high reliability, ease of programming, and process fault diagnosis. A variable-frequency drive (VFD) is a type of motor drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and, depending on topology, to control associated voltage or current variation.

Digital load cell amplifiers are also called weighing transmitters. It can convert physical quantities into electrical signals, and convert the sensors outputting millivolt signals into standard DC signals through isolation and amplification. It usually adopts SMT process and is designed and manufactured for resistance strain signal sensors in industrial processes, and is suitable for load cells of different specifications.

UPS is an uninterruptible power supply with energy storage device. It is mainly used to provide uninterrupted power supply to some devices that require high power stability. When the mains input is normal, the UPS will stabilize the mains and supply it to the load. At this time, the UPS is an AC voltage stabilizer, and it also charges the battery inside the machine; when the mains is interrupted (accidental power failure) When the UPS is switched on, the UPS will immediately supply 220V AC power to the load by switching the DC power of the battery to the load, so that the load can maintain normal operation and protect the software and hardware of the load from damage. UPS devices usually provide protection against overvoltage or undervoltage.

The proximity sensor is a general term for sensors that replace contact detection methods such as limit switches and are designed to detect without touching the detection object. It detects the movement and presence of objects and converts them into electrical signals. The principle of PNP and NPN sensors is to use the saturation and cut-off of triodes to output two states, which belong to switch sensors, but the output signals are diametrically opposite. high level and low level. NPN output is low level 0, and PNP output is high level 1.

The torque sensor calibration device is divided into two categories: dynamic and static. Dynamic torque sensors can also be called torque sensors, torque-speed sensors, non-contact torque sensors, and rotational torque sensors. Torque sensors are the detection of torsional torque sensing on various rotating or non-rotating mechanical components. ATO torque sensors convert physical changes in torque into precise electrical signals. It can be used in the manufacture of viscometers and electric (pneumatic, hydraulic) torque wrenches, with the advantages of high precision, fast frequency response, good reliability and long life.

Economy linear stepper motor is a stepper motor with lead screw, this stepper motor can be used in many high-precision requirements including precision calibration, precision fluid measurement, and precise positional movement, it can directly move linearly, which can make the machine miniaturized. The step size of the linear stepper motor is determined by the step angle of the motor and the pitch of the internally threaded nut and the lead screw. In order to ensure high working efficiency, there must be a certain degree of freedom between the rotor and the lead screw, which requires a certain gap between the two, which is about 0.03 to 0.08 mm backlash.

Variable frequency drive (VFD) is a power control device that uses frequency conversion technology and microelectronics technology to control the AC motor by changing the frequency of the motor's working power supply. The variable frequency drive is mainly composed of rectification, filtering, inverter, braking unit, driving unit, detection unit and micro-processing unit. It adjusts the voltage and frequency of the output power supply by switching on and off 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 VFD has many protection functions, such as overcurrent, overvoltage and overload protection, etc. Now, we will talk about ATO VFD analog output setting and wiring.

A stepper motor is a motor that converts electrical pulse signals into corresponding angular displacement or linear displacement. Each time a pulse signal is an input, the rotor rotates an angle or moves forward one step, the angular displacement or linear displacement it outputs is proportional to the number of input pulses, and the rotational speed is proportional to the pulse frequency. Therefore, the ATO stepper motor is also called a pulse motor.

An automatic transfer switch (ATS) is a device that automatically transfers a power supply from its primary source to a backup source when it senses a failure or outage in the primary source. When a failure occurs in a primary power system, the ATS invokes a standby power source, such as an uninterruptable power supply. An ATS can also start up more long-term backup power systems, such as local diesel generators, to run electric equipment until utility power is restored.

CNC router machine is an automatic processing equipment developed on the basis of general milling machines. The processing technology of the two is basically the same, and the structure is also somewhat similar. CNC milling machines are divided into two categories: without tool magazine and with tool magazine. Among them, the CNC milling machine with a tool magazine is also called a machining center.

Photoelectric sensor is controlled by converting changes in light intensity into changes in electrical signals. It is generally composed of three parts, which is divided into transmitter, receiver and detection circuit. The transmitter is aimed at the target and emits a light beam, which generally originates from semiconductor light sources, light emitting diodes (LEDs) and laser diodes. The beam is fired uninterrupted, or the pulse width is changed. The receiver consists of photodiodes or phototransistors. In front of the receiver, optical elements such as lenses and apertures are installed. Behind it is the detection circuit, which filters out the valid signal and applies it. The through beam type is that the transmitting end emits red light or infrared light, and the receiving end receives it.

Mechanical vibration and noise are key factors when designing a brushless DC motor. Uncontrolled noise and vibration often cause rapid system degradation, affect efficiency, and adversely affect wear on this control system. This is especially true of sensitive medical equipment, robotics, commercial systems, and handheld devices. Noise and vibration can have a significant impact on system performance, reliability, and operating costs. For handheld devices, vibration can be transferred to the user, causing safety concerns and pressure injuries. Whether in a hospital, laboratory or office, excessive noise from motors running around people can be a health hazard.

The brushless DC vibration motor consists of a motor body and a driver and is a typical mechanization product. The star winding of the motor is mostly made into a three-phase symmetrical star connection, which is very similar to the three-phase asynchronous motor. A magnetized permanent magnet is attached to the rotor of the motor. In order to detect the polarity of the motor rotor, a position sensor is installed in the motor. The driver consists of power electronic devices and integrated circuits.

VFD is mainly composed of rectification (AC to DC), filtering, inverter (DC to AC), braking unit, drive unit, detection unit and micro-processing unit. The VFD adjusts the voltage and frequency of the output power supply by turning on and off 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. VFD is frequently used for speed regulation of AC motors or reducing the impact on the power grid on start-up.

A stepper motor, also known as step motor or stepping motor, is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can be commanded to move and hold at one of these steps without any position sensor for feedback (an open-loop controller), as long as the motor is correctly sized to the application in respect to torque and speed.