M5 series encoder in stock MHM5-DPC1B-1213-C100-H3P

M5 series encoder in stock MHM5-DPC1B-1213-C100-H3P

An incremental encoder converts displacement into a periodic electrical signal, which is then converted into count pulses to represent the magnitude of displacement in terms of the number of pulses.

formula

Each position of the encoder corresponds to a specific digital code, so its indication is only related to the starting and ending positions of the measurement, and not to the intermediate process of the measurement. (REP)

Mechanical installation and use of installation type rotary encoder:

There are various forms of mechanical installation for rotary encoders, including high-speed end installation, low-speed end installation, and auxiliary mechanical device installation.

High speed end installation: Installed on the shaft end of the power motor (or gear connection), this method has the advantage of high resolution. Due to the 4096 turns of the multi turn encoder, the number of motor rotations within this range can be fully utilized to improve resolution. The disadvantage is that there is gear clearance error in the back and forth travel of moving objects after passing through the deceleration gear. It is generally used for one-way high-precision control positioning, such as roll gap control in steel rolling. In addition, the encoder is directly installed at the high-speed end, and the motor vibration must be small, otherwise it is easy to damage the encoder.

If you are interested in this product or similar solutions, please contact BEI China sales supplier Paiyi (Shanghai) Measurement Technology Co., Ltd.

Low speed end installation: Installed after the reduction gear, such as the shaft end of the winch wire rope drum or the shaft end of a section of the reduction gear. This method no longer has gear backlash, and the measurement is more direct and accurate. This method generally measures long-distance positioning, such as various lifting equipment, feeding cart positioning, etc.

Installation of auxiliary machinery:

Commonly used ones include gears and racks, chain belts, friction wheels, rope winding machinery, etc.

working principle

A photoelectric encoder with a central axis, which has circular markings for light and dark, is read by photoelectric emitting and receiving devices to obtain four sets of sine wave signals combined into A, B, C, and D. Each sine wave has a phase difference of 90 degrees (360 degrees relative to one cycle), and the C and D signals are reversed and superimposed on the A and B phases to enhance stable signals; Additionally, output a Z-phase pulse for each revolution to represent the zero reference position.

Due to the 90 degree difference between phase A and phase B, the forward and reverse rotation of the encoder can be determined by comparing whether phase A is ahead or phase B. By using the zero position pulse, the zero position reference position of the encoder can be obtained. The materials of encoder encoders include glass, metal, and plastic. Glass encoders deposit very thin engraved lines on glass, which has good thermal stability and high accuracy. Metal encoders directly engrave lines with or without lines, which are not fragile. However, due to the thickness of metal, the accuracy is limited, and its thermal stability is one order of magnitude worse than that of glass. Plastic encoders are economical and have low cost, but their accuracy, thermal stability, and lifespan are all inferior.

If you are interested in this product or similar solutions, please contact BEI China sales supplier Paiyi (Shanghai) Measurement Technology Co., Ltd.

signal output

The signal output includes sine wave (current or voltage), square wave (TTL, HTL), open collector (PNP, NPN), and various forms of push-pull, among which TTL is a long line differential drive (symmetrical A, A -); B,B-; Z. Z -), HTL also known as push-pull or push-pull output, the signal receiving device interface of the encoder should correspond to the encoder.

Signal connection - The pulse signal of the encoder is generally connected to a counter PLC、 Computers, PLCs, and modules connected to computers can be divided into low-speed modules and high-speed modules, with switch frequencies ranging from low to high.

As a single-phase connection, it is used for one-way counting and speed measurement.

A. B two-phase connection, used for counting forward and reverse directions, determining forward and reverse directions, and measuring speed.

A. B, Z three-phase connection, used for position measurement with reference position correction.

A. A -, B -, Z - connections, due to the connection with symmetrical negative signals, the current contributes zero electromagnetic field to the cable, with minimal attenuation, anti-interference, and can transmit over long distances.

For TTL encoders with symmetrical negative signal output, the signal transmission distance can reach 150 meters.

For HTL encoders with symmetrical negative signal output, the signal transmission distance can reach 300 meters.

If you are interested in this product or similar solutions, please contact BEI China sales supplier Paiyi (Shanghai) Measurement Technology Co., Ltd.

Encoder fault classification

⑴ Encoder malfunction: refers to the failure of the encoder's components, which prevents it from generating and outputting the correct waveform. In this case, it is necessary to replace the encoder or repair its internal components.

⑵ Encoder connection cable fault: The probability of this fault occurring is often encountered during maintenance and should be a priority factor to consider. Usually, it is due to open circuit, short circuit or poor contact of the encoder cable, in which case the cable or connector needs to be replaced. Special attention should also be paid to whether the loosening caused by loose cable fixation leads to welding or circuit breaking. In this case, the cable should be clamped tightly.

⑶ Encoder+5V power supply drop: refers to the situation where the+5V power supply is too low, usually not lower than 4.75V. The reason for the low voltage is due to power supply failure or excessive resistance of the power transmission cable, which causes losses. In this case, the power supply needs to be repaired or the cable needs to be replaced.

⑷ Encoder battery voltage drop: This fault usually has a clear alarm meaning, and the battery needs to be replaced. If the reference point position memory is lost, the operation of returning to the reference point must also be performed.

⑸ Encoder cable shielding wire not connected or detached: This will introduce interference signals, make the waveform unstable, and affect the accuracy of communication. It is necessary to ensure reliable welding and grounding of the shielding wire.

⑹ Loose installation of encoder: This fault can affect the accuracy of position control, causing excessive positional deviation during stopping and movement, and even generating servo system overload alarm as soon as the machine is turned on. Please pay special attention.

⑺ Grating contamination can cause a decrease in signal output amplitude, and the oil stains must be gently wiped off with a degreasing cotton.

If you are interested in this product or similar solutions, please contact BEI China sales supplier Paiyi (Shanghai) Measurement Technology Co., Ltd.

Rotary encoders can be used for all applications that require monitoring of rotation speed, velocity, acceleration, and direction. These sensors can be used for various applications in mechanical engineering, conveyor belt industry, logistics industry, and packaging industry. You can definitely find a rotary encoder suitable for your application from our wide range of products.

In the field of automation, rotary encoders can be used as sensors for angle, position, velocity, and acceleration. In addition, linear motion can also be measured by using a spindle, gear frame, measuring wheel, or cable.

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17. What is an intelligent encoder?

The intelligent encoder is an invention of GEMPLE, which has a built-in 32-bit intelligent chip MCU and a setting

Software Easypro, can be connected to a computer for settings, an intelligent encoder integrates digital RS485 output and analog current

4-20mA output, suitable for various applications of encoders, such as angle measurement, length measurement, speed measurement, electronic cam switch output

The output switches for output, overspeed, and low-speed can all be directly output and applied through intelligent settings, and can be used for signal RS485

Set baud rate, address, and resolution. For signals 4-20mA, zero point, full point, and rotation direction can be set, and power can be applied

Flow calibration. In addition, digital signals can be converted into various fieldbus, Ethernet, wireless, and so on as needed, and encoded accordingly

The device has entered the era of intelligence, providing a sensor base for the intelligent management of factory equipment and the Internet of Things in terms of angle, length, and speed

Basic.

If you are interested in this product or similar solutions, please contact BEI China sales supplier Paiyi (Shanghai) Measurement Technology Co., Ltd.

1. What is the difference between incremental encoders and encoders?

Incremental encoders generally have open collector output, voltage output, or linear output, outputting A-phase, B-phase, Z-phase pulses, etc

If the position still needs to be recorded without power outage, an incremental encoder can be used, which can be connected to the high count function

PLC, It can also be connected to commonly used counters.

The output of the encoder is binary code or Gray code, which can record the current position even after power failure Encoder required

To connect to an encoder interface board such as CQM1H-ABB21, the high count counter of a regular PLC cannot be connected to the encoder or

If the action frequency is not very high and the voltage meets the specifications, the encoder can also be connected to the ordinary input point of the PLC

The program can also be programmed according to the specifications of the encoder output code.