Hengstler solid shaft encoder RI36

Hengstler solid shaft encoder RI36

Hengstler solid shaft encoder RI36Spot agent sales

Hengstler encoders can be classified in the following ways.

1. Hengstler is classified according to the different ways of engraving holes on the dial

(1) Incremental type: It emits a pulse signal (also known as sine and cosine signals, which are then subdivided to produce higher frequency pulses) every unit angle turned. It is usually output in phases A, B, and Z, with phases A and B being pulse outputs delayed by 1/4 cycle each other. According to the delay relationship, forward and reverse can be distinguished, and the rising and falling edges of phases A and B can be multiplied by 2 or 4 times; The Z-phase is a single cycle pulse, which means one pulse is emitted per cycle. Generally speaking, incremental encoders have no internal storage devices, so they do not have power-off data retention function. CNC machine tools must determine the counting reference and reset the actual position through the "reference point" operation.

(2) Hengstler absolute value type: corresponding to one circle, each reference angle emits a binary value corresponding to that angle, which can be recorded and measured at multiple positions through external loop devices. The output of the absolute value encoder can directly reflect the absolute angle within a 360 ° range, and the absolute position can be distinguished by the amplitude of the output signal or the physical encoding scale of the grating, the former being called a rotating transformer; The latter is called an Absolute value Encoder.

2. According to the output type of the signal, it can be divided into voltage output, open collector output, push-pull complementary output, and long line drive output.

3. Classified by mechanical installation form of encoder

(1) Axial type: Axial type can be divided into clamping flange type, synchronous flange type, servo installation type, etc.

(2) Shaft sleeve type: Shaft sleeve types can be divided into semi empty, fully empty, and large-diameter types.

4. According to the working principle of encoders, they can be divided into photoelectric, magneto electric, and contact brush types.

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.

2. Encoder connection cable fault: This type of fault has the highest probability of occurrence and 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.

3. 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 high 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.

4. Absolute 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.

5. The shielded wire of the encoder cable is 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 shielded wire.

6. 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.

7. Grating contamination can cause a decrease in signal output amplitude, and it is necessary to gently wipe off the oil stains with degreasing cotton.

8. The high-speed end of the encoder is not aligned or installed too tightly: this can cause the ball bearings of the encoder to wear and heat up, and the lubricating oil inside the bearings to leak and contaminate the encoder disc, thereby affecting signal acquisition.

Hengstler solid shaft encoder RI36