Schneider ATS48 soft starter is composed of three opposite parallel thyristors, which are connected in series between the three-phase power supply and the motor, by changing the trigger angle of the thyristor gate pulse, the thyristor conduction angle gradually increases from zero, according to the preset soft starter parameter curve, the output torque of the motor gradually increases with the increase of the terminal voltage on the motor, and the speed gradually increases until the additional terminal voltage, additional torque and speed, and the starting process is completed.
The output of the soft engine is a slippery step-up process (with current limiting function), until the thyristor is fully conducted, and the motor works under the additional voltage, at this time, the bypass contactor can be turned on, and the additional working current is turned through the bypass branch to flow, and the motor enters steady-state operation; When the machine is stopped, the bypass contactor is intercepted first, and the operation of the soft engine is rehabilitated, and the conduction angle of the thyristor in the soft engine is gradually reduced from large, so that the power supply voltage of the motor is gradually reduced, and the motor speed is gradually reduced from large to zero, and the parking process is completed. The block diagram of the main circuit of the SCHNEIDER ATS48 electric soft engine is shown in Figure 1.
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Instrumentation anti-interference measures - Schneider
The interference encountered by sensors and instruments in the field operation is varied, and the specific situation is analyzed on a case-by-case basis, and the principle of anti-interference is to adopt different methods for different disturbances. This flexible and mobile strategy is undoubtedly opposed to universality, and the way to deal with it is to choose a modular approach, except for ...
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For the first time, Schneider presents a new lightweight MES in packaging
Packaging Lightweight MES is a production line and workshop-level digital management and processing solution created by Schneider Electric based on more than 20 years of experience in packaging machine automation, combined with the digital transformation needs of the FMCG (Consumer Packaged Goods) profession, which can be widely used in food and beverage, life ...
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Schneider turbine flowmeter selection considerations
1. According to the requirements of measurement intention:
It is required to select the unit with instantaneous flow rate or cumulative flow rate (cumulative flow), the unit of flow display, measurement accuracy, repeatability, linearity, flow scale and scale, measurement temperature, pressure loss, temperature and pressure compensation, output signal characteristics and echoes.
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Schneider inverter simple question
1. How to complete the control of ATV38 and ATV58 through the operation panel?
First, in the control menu, set "LCC" to "YES" (panel operation); Enter the "LFR" parameter in the adjustment menu, press the up and down keys to adjust the given value, and complete the control of the inverter.
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Schneider's method of improving the power factor of UPS power supplies
One. The significance of the progressive power factor.
1. Make full use of the ability of power equipment.
Each power supply unit has additional capacity, i.e. depending on the power. The total power output of the power supply equipment S, - part of the active power, the other part is the reactive power, the smaller the ...
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Schneider ATS48 soft starter issue
1. What type of ATS48 power supply is?
The control power supply of ATS48 selects communication input, and supplies power to the controller, input and output ports through internal power processing;
The control power supply of Q series products is 220V-415V;
Handling of the Y-Series ...
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Servo motor selection process – Schneider
1. Load organization (acknowledging the type of tissue and its specific data, such as ball screw length, ball screw diameter, stroke, pulley diameter, etc.)
2. Form of action (acknowledging the form of action of manipulating the target, the relationship between time and speed; Will manipulate ...
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The role of Schneider thermal relays
The effect of the thermal relay is mainly used to carry out overload maintenance on the asynchronous motor, his operating principle is that after the overload current passes through the thermal element, the bimetal sheet is heated and bent to advance the action mechanism to drive the contact action, so as to disconnect the motor control circuit to complete the motor power-off thermal relay ...
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Frequency converter and PLC connection problems - Schneider
When the inverter is used to form an automatic control system for control, in many cases, the PLC and the inverter are used together, and how to correctly connect the PLC and the inverter together has become the key to the success of the system.
1.PLC switch ...
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Schneider Thermal Relay Model Meaning
The function of the thermal relay is mainly used to carry out overload maintenance on the asynchronous motor, and his operating principle is that after the overload current passes through the thermal element, the bimetal sheet is heated and twisted to advance the action organization to drive the contact action, so as to disconnect the motor control circuit to realize the motor power-off thermal relay ...
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Design and calculation method of inverter braking resistance - Schneider
1. The number of braking resistor boxes is roughly calculated as: motor power (KW)/11.2 (take the upper limit of the integer).
2. The selection of the power of the braking unit is generally (1-2) times the power of the inverter;
3. The function of braking resistor ...
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Precautions for the selection of Schneider molded case circuit breaker
1. Shell current and rated current
The size of the shell current is 100 (rated current 16 25 32 40 63 80 100) 250 (rated current 160 250 400 (rated current 250 400) 630 (rated current 630A.)
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Frequency characteristics of frequency converters – Schneider
a. Output frequency scale. The output frequency scale that can be controlled by the general inverter, the lowest starting frequency is generally 0.1Hz, and the highest frequency varies according to the functional indicators of the inverter, generally 400Hz, and some models are 650Hz. No matter how high the output frequency is, it depends on the scale of the high-frequency inverter.
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Inverter selection principle - Schneider
1. Select the inverter according to the load characteristics.
2. When selecting the inverter, the actual motor current value should be used as the basis for the selection of the inverter, and the additional power of the motor can only be used as a reference. Secondly, the output content of the inverter should be fully considered.
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Input/output pins P0, P1, P2, P3 functions
P0.0——P0. 7 : Port P0 is an 8-bit open-drain bidirectional I/O port. When visiting off-chip memory, it is time-shared for a low-8-bit address and an 8-bit bidirectional data bus. When EPROM is programmed, the instruction byte is input by P0, and when the program is verified, it outputs ...
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Introduction to Schneider inverter fault code and maintenance method
1. If the fault code presented on the Schneider inverter is AnF, it means that the load of the inverter has slipped, that is, the speed of the encoder does not match the initial value. First of all, we need to check whether the parameters of the motor are stable and the size of the load, ...
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Schneider instrumentation fault diagnosis method
1. Percussion hand pressure method
When we use the instrument, we often encounter the phenomenon that the instrument is running well and badly, and most of this phenomenon is caused by poor contact or virtual welding. In this case, percussion and hand pressure can be used.
The so-called "percussion" is the response to the ...
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Steps for wiring and installation of rotary encoders – Schneider
Rotary encoder to roll the output pulse, through the counting equipment to know its position (PLC) we usually use incremental encoders, the incremental encoder output pulse signal can be directly input to the PLC, the high-speed counter of the PLC to count its pulse signal, in order to obtain the ...
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Schneider Instrumentation Classification
1. Industrial automation appearance and control system. This is generally referred to as PA, FA in foreign countries. PA is called process automation, and FA is called factory automation. The appearance and control system used in process automation and factory automation belong to this category, and some parts of the appearance of analytical instruments and electrical instruments also belong to the ...
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Methods to reduce the interference of Schneider inverters themselves
When there are high-frequency impact loads such as welding machines, electroplating power supplies, electrolytic power supplies, or slip ring power supply near the power supply system of Schneider inverter, the inverter itself is simply protected due to interference. It is recommended that users choose the following methods:
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