Displacement sensor installation instructions precautions

The linear displacement sensor is also called an electronic ruler, which is actually a sliding rheostat. What should I pay attention to when using the linear displacement sensor? First, use an electronic ruler as a voltage divider, use the relative voltage to display the actual position of the measured position. Therefore, several requirements are put forward for this device (electronic ruler):

The three wires of the electronic ruler cannot be connected wrongly. Rows 1 3 are power lines, row 2 are output lines. Except that the power cords of line 1 line 3 can be exchanged, line 2 can only be used as an output line. Once the above-mentioned wires are connected incorrectly, a large linear error will occur, the control accuracy will be poor, the display will easily bounce. If it is difficult to control, you should suspect that the line is wrong. The installation error is ±0.5mm, the tolerance is ±0.5mm. If the angle error parallelism error are too large, it will cause the display number to jump. In this case, you can usually use a multimeter's voltage file to measure voltage fluctuations. The angle parallelism must be adjusted. Please pay special attention: After replacing the aluminum alloy bracket of the electronic ruler with the stainless steel bracket, the pulling rod installation position should be increased by 2mm at the same time. Otherwise, the grounding problem will be solved a misalignment problem will be formed, which must be solved at the same time. The power supply must have sufficient capacity. If the power supply capacity is too small, the following situations are likely to occur: the mold clamping movement will cause the display of the plastic injection ruler to jump, the melt movement will cause the display of the mold clamping electronic ruler to fluctuate. Especially when the solenoid valve drive power supply is combined with the electronic ruler power supply, the above situation may occur. In severe cases, the voltage file of a multimeter can be used to measure voltage fluctuations. If the problem cannot be solved after eliminating static electricity interference, high frequency interference, poor neutrality, you can also suspect that the power supply is too low.

For electronic rulers that have been used for a long time, since the previous products are sealed, there may be a lot of impurities oil-water mixtures, which will affect the contact resistance of the brush cause the display number to jump. It can be considered as the early damage of the electronic ruler itself. The electronic ruler display troubleshooting is very simple. Only one digital multimeter one wire are needed on the device. As long as comprehensive analysis is required, it is difficult to judge solve problems.

There must be no external interference, including electrostatic interference high frequency interference. Therefore, the strong wire of the equipment the signal wire of the electronic ruler should be separated the wire duct. The electronic ruler should use a mandatory grounding support. The electronic ruler housing (the resistance between the end cover screw the support should be less than 1Ω) is well grounded, the signal line should be shielded, one end of the electrical box should be connected to the shielding wire to ground connect to DC power supply. In the case of electrostatic interference, the voltage measurement of a general multimeter is very normal, but it shows the phenomenon of digital bounce; this phenomenon is the same when high-frequency interference. In order to verify whether it is electrostatic interference, use the power cord to short the cover screw of the electronic ruler with a metal point on the machine. As long as there is a short circuit, electrostatic interference is immediately eliminated. However, the above method is difficult to eliminate high-frequency interference, high-frequency interference frequently occurs in manipulators variable frequency power savers, which can be verified by stopping the manipulator variable frequency power savers.

The power supply voltage must be stable, industrial power supply requires a stable ±0.1. For example, the reference voltage is 10V, allowing ±0.01V fluctuations. Otherwise, it will cause large fluctuations in the display. If the fluctuation range displayed at this time does exceed the fluctuation range of the fluctuation voltage, the electronic ruler is normal.

DEUPREE (Qingdao) Industrial Technology Co., Ltd. is an integrated enterprise focusing on the research development of automated industrial technology equipment manufacturing. The company’s products mainly include rotary motion sensors, linear displacement sensors, object recognition sensors, laser rangefinders, process control measurement Class instruments, signal detection systems, signal transmission systems, immature drive systems, UPS safety power supply systems, automation equipment energy-saving cleaning auxiliary equipment systems are limited to this, we can also customize flexibly customize according to customer needs to meet different Different needs of customers.