(1) When the speed of the motor is controlled by the Delta inverter, the noise and temperature rise of the motor are higher than that of the frequency of the motor. When the motor is running at low speed, because the speed of the motor blades is low, the temperature rise of the motor becomes high, in this case, it is necessary to pay attention to the appropriate load reduction and ventilation and cooling, so as to avoid the temperature rise of the motor exceeding the maximum limit.
(2) The impedance of the power supply line should be appropriately increased, in the case of the inverter connected to the low-voltage power grid, if the inverter and the distribution transformer are very close to each other, or the capacity of the distribution transformer is greater than about 10 times the capacity of the inverter, if the impedance of the circuit is too small, a large inrush current will occur to the Delta inverter at the moment of investment, and the rectifier element of the inverter will be directly damaged. Therefore, if the resistance is small, an AC reactor should be installed between the transformer and the inverter.
Delta's inverter is as follows:
1. Control the stator flux to introduce the stator flux observer to complete the speed sensorless mode.
2. Automatic identification (ID) relies on accurate motor mathematical model to automatically identify motor parameters.
3. Calculate the practical value corresponding to the stator impedance, mutual inductance, magnetic saturation factor, inertia, etc., and calculate the practical torque, stator flux, and rotor speed for real-time control.
4. Complete the Band-Band control and generate PWM signals according to the Band-Band control of the flux and torque, and control the inverter switching status.
Delta's matrix AC-AC frequency converter has fast torque response (<2ms), high speed accuracy (±2%, no PG reaction), and high torque accuracy (<+3%). Together, it also has high starting torque and high torque accuracy, especially at low speed (including 0 speed), it can output 150%-200% torque.
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Delta's servo protection parameters are written
A3, B3 servo
P5-97 Motion Control Mobilization Commands
0x0003 Maintenance Activation (Successful Return 0x1003)
0x0004 Maintenance Waiver (Successful Return 0x1004)
If the wrong cipher code is entered, the error code Ennn will be sent back to exempt the loss, during which nnn indicates that there is a ...
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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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Delta was awarded an "A" rating as a "Supply Chain Engagement Leader."
On February 10, CDP released its 2021 Supplier Engagement Rating; SER) As a result, Delta received the highest scores in key scoring items such as "Supply Chain Participation" (Note 1) and "Three Emissions in the Greenhouse Gas Field" (Note 2).
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The reason for the low voltage trip of the inverter - Delta
The low voltage of the inverter mainly refers to the low voltage of the central DC circuit, and the reasons for the low voltage of the central DC circuit generally come from two aspects:
(1) Low voltage from the input side of the power supply
The power supply under normal conditions ...
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Delta's MH300 series technical specifications
Outstanding drive characteristics
The overload capacity is up to 150% / 60 seconds, 200% / 3 seconds, suitable for constant torque, variable torque, constant power and other loads
Support induction motor, permanent magnet synchronous motor, optional PG card for high ...
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Delta linear motor driver ASDA-A2R series
In view of the rapid transformation of the industry, Delta has specially proposed a total linear motor solution, deploying various communication interfaces, extending the evolved model ASDA-A2R from ASDA-A2 as a linear horse driver, and deploying Delta's high-speed bus controller and axis card to form a complete linear motor ...
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The reason for the shaking of the inverter for the motor - Delta
When using the motor dragged by the inverter, sometimes the motor flutters and the over-fire flutter may burn out the motor and cause immeasurable losses. So what is the reason for this phenomenon?
1. The motor is damaged ...
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PLC Peripherals – Delta PLC
Programming equipment: simple programmer, most only accept mnemonic programming, and some can also be programmed graphically (such as Japan's Toshiba EX programmable controller). The cluttered one has a graphical programmer, which can be programmed in the trapezoidal language. Some also have dedicated computers that can be used for other ...
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Delta's touch screen controls the inverter method
1. The touch screen is controlled by PLC inverter
1. Now the general control of the inverter needs to use PLC to communicate with the inverter, read the information of the inverter, and then the touch screen communicates with the PLC in order to complete the control of the inverter to start, stop, and monitor the operation of the inverter.
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Introduction to the common sense of 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.
The additional current of the fuse must be greater than or equal to the additional current of the melt.
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Composition and function of Delta inverter
Delta inverter is a device that converts the power supply (50Hz or 60Hz) into AC power supply of various frequencies to realize the variable speed operation of the motor.
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Synchronous control parameter setting method for two or more inverters - Delta
Step 1
Two inverters, two wires, and one power supply.
Step 2
The inverter wiring defines the two inverters as a master and a slave respectively, the host port 485A is connected to the slave port 485A, and the host port 485B is connected to the slave port 485B.
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Introduction to Delta's DVPSCM52-SL communication module
Recently, Delta Group has made a big hit in the field of building automation with the launch of the DVPSCM52-SL, a slave communication module that supports BACnet MS/TP (Building Automation Control Network Communication Protocol). Building automation system is an indispensable part of intelligent building.
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Delta's PLC-Based motion controller AX3 series
With the development of electronic semiconductor information technology, technologies such as the Internet of Things, big data, and cloud channels are showing a trend of a hundred flowers blooming, which also drives the rapid development of intelligent production. Intelligent production also puts forward new requirements for controllers: high speed, large capacity, miniaturization, networking...... In order to ...
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The basic control loop of Delta's inverter
There are two fundamental circuits for communicating with external signals: analog and digital:
1. 4-20mA current signal loop (imitation); 1 - 5V/0 - 5V voltage signal loop (imitation).
2. Switch signal circuit, inverter start and stop command, forward rotation command, etc.
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Delta's servo motor maintenance and safety measures
Delta's servo motor system is planned for industrial use, and it is necessary to have a sufficient understanding of the motor standards and operation manuals before operating the motor. For the safety of the operator and equipment, and to ensure that the motor can be used correctly, please read this safety precaution carefully before installing the machine.
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Workarounds for industrial tablet PC disk failures
After the long-term operation of the industrial tablet, there is a lot of dust in the chassis and the temperature of the chassis is high. At this time, it is very simple to cause the disk failure of the industrial tablet computer, the product quality problems of the hard disk itself and the failure problems caused by the working environment.
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A brief introduction to Delta's inverters and their models
Delta's VFD drives have now established a wide range of brand awareness in the industrial automation market. Each series of products is designed for different operation needs such as torque, loss, overload, overspeed work, etc., and is adjusted according to different industrial machinery attributes; It can provide customers with a variety of choices, and a wide range of ...
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How the components of the inverter work – Delta
1. Inverter element - rectifier
Since it is difficult to change the frequency of the communication sine wave in the form of communication, the first operation of the inverter is to convert the waveform into direct current. To make it look like an AC, it is relatively easy to operate the DC. The most important component of all inverters is a ...
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Selection of braking resistors for Delta inverters
1. The necessity of braking resistance
If the regenerative energy that occurs during deceleration and descent in the application is too large, there is a possibility that the voltage of the main circuit inside the inverter will rise, causing damage.
Because usually the inverter has a built-in overvoltage maintenance function, the main circuit overvoltage (O...
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