1. The correct shield grounding point is at the reference potential inside the circuit, which depends on whether the noise source and receiver are grounded together, or may float.
Second, it is necessary to ensure that the shield is grounded at the same point so that the ground current does not flow through the shield.
3. Prevent the occurrence of ground loops in multiple connection geodetic methods, which are easily affected by noise and generate currents at different reference points.
4. In the case that there is no barrier between the AC power supply and the DC bus of the driver, the non-blocking port or non-blocking signal of the DC bus cannot be connected to the ground, which will lead to equipment damage and personnel damage.
Fifth, to prevent the servo drive from being connected to the external power supply, it will directly affect the work of the controller and the driver.
6. The common voltage of AC is not for the earth, and there may be a high voltage between the DC bus and the earth, and it is forbidden to directly connect to the ground.
7. In the servo system, the public land and the earth must be connected together at the signal end.
8. In order to insist on the stability of the command reference voltage, the signal of the servo drive should be connected to the signal of the controller.
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The LMT series of ifm level sensors
The liquid level sensor launched by ifm electronics - LMT series sanitary liquid level sensor, this series of sensors is made of high-grade stainless steel 316L material shell, compact structure, can reach IP68/69K protection level, reliable and stable function, can be thoroughly used in sanitary areas, suitable for food ...
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ifm wireless sensor analysis
1. After the wireless sensor device is installed, it appears to be beating or the number is inaccurate
Reason: There is electromagnetic interference on the site, or the signal line and the power line go to the same trunking.
Solution: The product function selected by the customer does not meet the on-site working conditions, and it needs to be installed or replaced.
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Advantages of ifm RFID solutions:
ifm has the widest range of IO-Link sensors on the market. The new RFID antenna further completes the original product variety. The RFID antenna is planned to connect to the IO-Link master. The master* can supply up to 8 M12 sockets for easy connection to IO-Link RFID antennas. IO-Link Master ...
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How ifm sensors determine the exact installation location
When installing an ifm sensor, the first thing to do is to confirm the orientation of the sensor and then to install it correctly. So how do we confirm the orientation of the sensor?
The ifm sensor confirms the detailed orientation of the device ...
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ifm UGT505 is used to improve air quality
Green City Solutions is committed to improving urban air quality. As a result, they developed CityTree, the world's first bio-skill air filter. The filter is integrated in the UGT505.
CityTree uses ...
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ifm IO-Link devices are the inputs and outputs of the master modules
The new IO-Link I/O modules make it easy and cost-effective to add robust digital inputs and outputs to ifm's IO-Link master modules for use in the field.
●After IO-Link and binary signal ...
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Mathematical modelling for the diagnosis of sensor faults – ifm
Diagnose sensor faults based on mathematical models? When there is a problem, the first time is to diagnose it, see where the problem is, so that it is easy to deal with, from different angles, we use more than one method when diagnosing the problem, if this is classified, it can be divided into two ...
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Analysis of sensor technical indicators - ifm
Because of the many technical goals of sensors, various data and literature have different perspectives, so that different people have different understandings, and even misunderstandings and ambiguities. To this end, the following are some of the top technical objectives of sensors:
1. Resolving power and resolution:
Definition...
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Installation and maintenance of ifm sensors
1. The wiring socket is connected at both ends of the inductance coil, and the other two ends are connected to the liquid level signal input end of the secondary instrument. When the inductor coil is open or the internal circuit is blocked, it should be replaced in time.
2. In order to commission and repair IFM ...
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Range, accuracy and installation of load cells – ifm
1. The scale of the sensor:
(1) In normal use (static test or quasi-static test, the frequency of use is not high), the scale of the sensor should be selected to consider the force value of the measurement, but also consider the weight of the auxiliary tool (test fixture) and so on.
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Sensor installation requirements and precautions – ifm sensors
1. Device requirements:
1. Measure the shaft diameter and center height of the high-precision displacement sensor.
2. Two sets of couplings are used to connect the device with high-precision displacement sensor between the power source and the load.
3. The sensor can be connected with a rigid or elastic coupling. The sensation is more ...
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Applications of IFM capacitive sensors
1. ZCS1100 fine capacitance displacement sensor. This sensor can detect piezoelectric micro-displacement, shaking table, electron microscope fine-tuning, astronomical telescope lens fine-tuning, fine micro-displacement measurement, etc. The sensor is a single channel, high-performance linear displacement measurement system, innovative ...
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The ifm JD series is a precision inclination sensor for dynamic applications
Axes and 2-axis as well as sensors with 6 degrees of freedom respond quickly and with high signal quality at pole conditions
1-axis and 2-axis as well as inclination sensors with 6 degrees of freedom
The fusion algorithm of the innovative sensor can ensure the rapid call...
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Fuel level sensors monitor the cause of the fuel level – ifm
The oil level sensor according to the resistance is mechanically connected to the float, and the float can rise or fall with the fuel level, and the resistance of the sensor changes as the float moves. The sensor used is part of the current balance circuit in the fuel gauge display circuit, which is generally used to drive ...
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Factors influencing load cell performance – ifm
Load cells are an important category of load cells, the most widely used, and there are many ways to do so. In general, the composition of load cells is mainly elastomers, strain gauges, seals, etc. Several of them interact with each other to affect the function of the sensor, and their respective roles are as follows: ...
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The cause of sensor interference – ifm
1. The PCB layout board touches the problem, and when the imitation signal is traced, the imitation signal is not wrapped with imitation, and there is even a possibility that the signal line is directly taken to the power line, which is easy to receive disturbance.
Solution: When it is a board, wrap the GND to imitate the signal line. If there is a model ...
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Causes of bearing damage caused by ifm
Not all damaged bearings can be corrected, but the cause and extent of the damage to each damaged bearing must be evaluated to prevent or reduce further damage before considering the correction or replacement of a new bearing. There are many reasons for bearing damage, such as improper equipment, dirt invasion, etc.
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Presentation of flow sensors for detecting gases – ifm
Gas flow sensors can display the cumulative flow, instantaneous flow, temperature and pressure of gases, and it is widely used in all walks of life, such as industrial production, scientific experiments, power saving, etc., and plays a role in promoting the production power of progressive society.
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How ifm laser sensors work and how they are used
The laser sensor consists of a laser, a laser detector and a measuring circuit. The laser sensor is a new type of measuring instrument, and its advantages are that it can complete the remote interval measurement without touch, with fast speed, high precision, large measuring range, strong anti-light and electric disturbance ability, etc. When the laser sensor is operating, the laser is first ...
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Classification of ifm magnetic sensors
Any sensor made by using magnetic properties and magnetic flux changes is called a magnetic sensor. There are two common types of magnetic sensors: piezomagnetic sensors and magnetoelectric sensors. The two types of sensors are quite different in terms of operating principle and range of use.
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