Italian eltra value encoder Shanghai regional general agent

ItalyEltra value encoderShanghai District General Agent
The working principle and influence of the Italian Eltron eltra encoder: It is a torsion sensor that converts rotational displacement into a series of digital pulse signals, which can be used to control angular displacement. If the encoder is connected to a gear bar or screw, it can also be used to measure linear displacement.
After the Eltra encoder in Italy generates an electrical signal, it is processed by the CNC controller, programmable logic controller PLC, and control system. These sensors are mainly used in the following areas: machine tools, material processing, motor feedback systems, and measurement and control equipment. The conversion of angular displacement in ELTRA encoder adopts the principle of photoelectric scanning. The reading system is based on the twisting of a radial indexing disk, which is formed by alternating transparent and opaque windows. This system is entirely illuminated vertically by an infrared light source, so that the image on the plate is projected onto the receiver profile. The receiver is covered with a layer of grating called a collimator, which has a window no different from the optical disc. The job of the receiver is to sense the light changes that occur when the infected disc moves, and then convert the light changes into corresponding electrical changes. Generally, a torsional encoder can also obtain a speed signal, which needs to be fed back to the frequency converter to adjust the output data of the frequency converter.
Eltra encoders are generally divided into incremental and type encoders, which have the biggest difference: in the environment of incremental encoders, the number of pulses calculated from the zero position indicator is determined, while in type encoders, it is determined by the reading of the output code. In a circle, the reading of each output code is *; Therefore, when the power is disconnected, the encoder does not separate from reality. If the power is turned on again, the reading will still be current, unlike incremental encoders where it is necessary to search for the zero position indicator.
The Eltra rotary encoder provides an * encoding for the angle of the shaft and provides feedback on the actual angle of the shaft. Therefore, even if the system restarts or loses power, it can prevent the loss of location information. Thanks to the characteristics of this encoder, Eltra has achieved sustained growth in value encoders and has maintained the forefront of technological research and development. In Eltra value encoder products, there are not only single loop values but also multiple loop values to better meet customers' needs for sensor flexibility and diversity.
Symptom: When the torque encoder is broken (no output), the frequency converter cannot work normally, and the operating speed becomes very slow. After a while, the frequency converter displays "PG disconnected". Combining actions can have an impact. To raise the electrical signal to a higher level and generate a square wave pulse without any interference, it is necessary to use electronic electricity to handle it. The connection between the encoder PG wiring and the parameter vector frequency converter and the encoder PG must correspond to the model of the encoder PG. Generally speaking, there are three types of encoder PG models: differential output, collector open output, and push-pull output. The signal transmission method must consider the interface of the frequency converter PG card, so choose the appropriate PG card model or set it reasonably. ItalyEltra value encoderGeneral representative of Shanghai district; Our country's sensor assets need to adapt to the trend of technology and grow towards the goal of connecting the two markets of domestic and foreign markets, allowing sensors and detectors to seize the opportunity of information-based growth.
In recent years, sensors have been in a growth stage of transitioning from conservative to new types of sensors. The characteristics of new sensors are miniaturization, digitization, intelligence, multifunctionality, systematization, and collection. They not only promote the conservation of property, but also lead to the establishment of new industries, which is a new economic growth point in the 21st century. Miniaturization is fundamentally based on the technology of microelectromechanical systems (MEMS), and has been successfully used in silicon devices to form silicon pressure sensors (such as the EJX transmitter mentioned above).
Eltra has developed various types of incremental encoders: various mechanical installation methods (solid shaft, blind hole shaft, through-hole shaft), various resolutions, installation flange methods, circuit output methods, to meet various application needs.
Like many other successful companies, Eltra was born from a garage. Although it was initially just a hobby, it quickly developed into a solid commercial project. In 1985, Eltra was founded in Sarago. Since then, Eltra has experienced stable growth and development both domestically and internationally. In the 21st century, Eltra strategically decided to establish branch offices in Slovakia and China.
Wiring method for ELTRA rotary encoder
The Eltra rotary encoder is a photoelectric rotary measuring device that directly converts the measured angular displacement into a digital signal (high-speed pulse signal).
According to the signal principle, there are incremental encoders and type encoders in the ELTRA encoder.
We usually use incremental encoders, which can directly input the output pulse signal of the rotary encoder to the PLC, and use the PLC's high-speed counter to count its pulse signal to obtain measurement results. Different models of rotary encoders have different numbers of output pulses. Some rotary encoders output three-phase pulses of A, B, and Z, some only have two phases of A and B, and the simplest one only has phase A.
The ELTRA encoder has 5 leads, including 3 pulse output lines, 1 COM terminal line, and 1 power line (OC gate output type). The power supply of the encoder can be an external power supply or directly use the DC24V power supply of the PLC. The "-" end of the power supply should be connected to the COM end of the encoder, and the "+" end should be connected to the power supply end of the encoder. The COM end of the encoder is connected to the input COM end of the PLC, and the A, B, and Z phase pulse output lines are directly connected to the input end of the PLC. A and B are pulses that are 90 degrees apart, and the Z phase signal has only one pulse when the encoder rotates once, usually used as a basis for zero point. When connecting, attention should be paid to the response time of the PLC input.Italian eltra value encoder Shanghai regional general agentThe Italian eltra rotary encoder also has a shielded wire, which needs to be grounded during use to improve anti-interference performance.
ELTRA encoder -------------- PLC
A-----------------X0
B-----------------X1
Z------------------X2
+24V------------+24V
COM--------------24V-----------COM