Delta's programmable controllers, also known as Delta programmables, delta programmable controllers, delta programmable controllers, etc., are electronic devices specially designed by Delta for the industrial automation category to complete digital operations. Delta's PLCs use programmable memory to store instructions for performing logic, sequential, timing, counting, and arithmetic operations, and can operate various machinery or production processes through digital or analog inputs and outputs.
Delta's programmable controllers
Delta PLC is known for its high speed, stability, and high reliability, and is widely used in various industrial automation machinery.
In addition to the characteristics of fast program operation, rich instruction set, multi-function expansion card, and high cost performance, Delta PLC also supports a variety of communication protocols to enable the overall connection of industrial automatic control systems.
In order to adapt to the use of industrial environments, compared with general operation and installation, PLC machines have the following characteristics
High reliability and strong anti-interference ability.
If the occurrence conditions of occasional faults can be constrained, if the PLC can not be affected in the harsh environment, or the consequences of the impact can be constrained in a small range, the PLC can automatically return to normal after the bad conditions disappear, so as to improve the uniform fault interval time; If some diagnostic methods and appropriate protection methods can be added to the PLC, when a fault occurs, the fault point can be quickly found and the fault can be limited to a part, and the uniform correction time of the PLC can be reduced. Therefore, the PLC manufacturers have taken a variety of measures in terms of hardware and software, so that the PLC can not only have a strong self-diagnosis ability, but also give error information in time, end the operation and wait for correction, and also make the PLC have a strong anti-interference ability.
It is highly versatile, the operating procedure is variable, and it is easy to use.
Strong function and wide habits.
The program design is simple and easy to master.
The planning and construction effort of the control system is reduced.
Small size, light weight, low power consumption, easy to protect.
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Delta's A2 server maintenance location controller is faulty
Delta's A2 series servo system is one of the more common and used servers on the market today, and the following describes the fault details of the azimuth controller in the repair of Delta's A2 servo drive and the corresponding repair methods
Delta ...
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Instrument classification standard - Delta
The appearance of the instrument is a comprehensive product of a variety of science and technology, with a wide variety of varieties, wide application, and constantly updated, with a variety of classification methods. According to the intention and use of the use of the main measuring instrument, car appearance, tractor appearance, marine appearance, aviation appearance, navigation instruments, control instrument ...
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The common sense principle of inverter - Delta inverter
The low-voltage fuse cannot be used as an overload maintenance for the motor.
It is necessary that the additional voltage of the fuse is greater than or equal to the operating voltage of the distribution line.
It is necessary for the additional current of the fuse to be greater than or equal to the additional current of the melt ...
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Precautions for summer maintenance and maintenance of inverters - Delta
1. Check the operating status of the inverter, whether the voltage and current value during operation are within the normal range.
2. Carefully monitor and record the ambient temperature of the frequency conversion room, and the ambient temperature is generally between -10 °C and 40 °C. The temperature rise of the phase-shifting transformer should not exceed 130°C.
3. Avoid ...
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The peripheral equipment of the inverter governor - Delta
When installing the inverter governor, it is necessary to first understand its use occasions and set up different peripheral equipment according to the needs of the site. The primary peripheral equipment of frequency governor is: air circuit breaker, electromagnetic contactor, communication reactor, braking resistor, DC reactor, output communication reactor, wireless ...
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Delta's inverter energy-saving method
Delta's inverter energy-saving method is mainly manifested in the application of fans, pumps, and hoists. In order to ensure the reliability of production, all kinds of production machinery are designed with power drive, and there is a certain amount of surplus.
Power Factor Supplement ...
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Delta's inverter adjusts the motor speed mode
The speed control on Delta's inverter is mainly as follows:
1. Adjust the variable resistance directly from the surface of the Delta inverter
2. External analogue voltage or current signal to adjust
3. Take advantage of the multi-function of the inverter ...
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Delta inverter failure and maintenance
Delta's inverter problem 1: Communicate with the motor driver to explore the formation of overvoltage conditions on the internal DC high-voltage power supply side
Check whether the keyed operating voltage is in the field of the additional value of the communication motor driver keying operating voltage, and detect whether there is a surge operating voltage formation
If it is due to ...
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The output of the inverter is not short-connected to the power frequency
1. To switch the motor of the power frequency, the parking method is set to free parking, and it is important not to park softly
2. Intercept the contactor of the motor from the output end of the inverter, and the control stop button and the inverter parking button are the same composite button, that is, when the inverter is pressed, the inverter parking will be followed by the contactor line.
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Comparison of three speed regulation methods for Delta DC motors
There are three speed regulation methods for DC motors: armature loop string resistance, armature voltage regulation and speed regulation, and weak magnetic field speed regulation. The three speed regulation methods can achieve stepless speed regulation.
1. Armature loop string resistance
The applied resistor is connected into the armature circuit to achieve the purpose of speed regulation.
Speed Direction: Add ...
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Analysis of common faults of Delta servo motors
1. The shaft current of the motor is generated
The current in the shaft-housing-base circuit of the motor is called the shaft current.
Causes of shaft current:
1) Magnetic field asymmetry;
2) There is a wave in the supply current;
3 ...
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Productivity maintenance tips for Delta drives
1. When the Delta inverter breaks down in the future, it is best not to hand it over to someone who has no experience in repairing the inverter to repair the inverter, otherwise it may get worse and worse. Sometimes it's about to fuse, be sure to check whether there is a problem with the module, some electricians have not experienced it, and immediately install a good fast melt (definitely not ...
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Delta inverter password
The inverter of Delta's brand A series locks the keypad to correct the parameters, forming that most of the parameters cannot be corrected, and the manual does not clearly explain how to unlock the keypad lock, press MODE and RESET together to display P256 (P256 does not explain what it means in the manual), press ENTER...
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Delta inverter parameter replication error solved
1. SE2 parameter imitation error
Problem Description:
Keypad Imitation Function Fault Correction 2
Solution:
1. The Keypad imitation action is completed, and the inverter parameters are written into error
2. SE1 Parameter Imitation ...
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Application of Delta A2 servo on packaging twisting machine
Double-end twisting machine is a more traditional sugar block packaging machine, it is widely used in small and medium-sized sugar block production enterprises, with a high degree of automation, which can not only complete the packaging of single or multi-layer paper, but also can package a variety of shapes of hard candy or soft candy.
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A brief description of the selection of Delta inverters
Delta's inverter series are as follows:
1:VFD-EL,VFD-S,VFD-L,VFD-C200
Voltage 220V, 380V, power scale 100W-7.5kw
The above series are Delta's simple inverters, commonly known as economical inverters, which are used for small fan pumps, food and medical ...
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Several common problems of Delta and their solutions
What is the stall prevention function of the inverter?
If the given acceleration time is too short, the output frequency of the inverter changes much more than the change of speed, and the inverter will jump due to the flow of overcurrent, and the free operation is stopped, which is stalling. In order to prevent stalling and keep the motor working, ...
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Delta's method of reducing the number of inverter repairs
Inverter is a modern factory in the use of a very ubiquitous equipment, this is a new type of equipment, the price is very noble, and the price of inverter repair is also very expensive, so in the process of using inverter, pay attention to the use of inverter, on the one hand, inverter, delay inverter ...
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Pulse control wiring method for Delta servo drives
Parameter settings
P1-XX are the basic parameters
P1-00 pulse method selection, *** bit selection is 2, that is, pulse train + direction
P1-00 signal logic picking, the third digit is selected as 0 or 1, which is the positive logic or anti-logic, X0XX or X1XX
P1-01 Control form selection, pick ...
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The inverter sets the characteristic parameters of the motor
1. Parameters to be set for the motor
When the inverter (hereafter referred to as the -VFD) is operating in the "vector control" (F0-03=1) mode, it is highly dependent on accurate motor parameters, which is one of the important differences from the "VF controlled" (F0-03=2) mode. In order for the VFD to have outstanding driving ...
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