1. How to set the acceleration and deceleration time of Delta inverter?
Solution(s):
The acceleration time of Delta's inverter is the time it takes for the driver to accelerate from 0.0Hz to "high operating frequency". Deceleration time refers to the time it takes for the inverter to decelerate from "high operating frequency" to 0.00Hz. Because when the general inverter is running at full load, because of the slip difference between the motor and the load during actual use, inertia and other factors, even if the inverter has stopped the output, the load with large inertia will still have the inertial force to rotate the motor shaft, and it cannot be useful to reach the required abort position. At this moment, you can use the "Jiahua acceleration and deceleration setting" function of Delta's inverter, which can actively adjust the acceleration and deceleration, which can effectively reduce the mechanical vibration of load start-up and abort, and can actively detect the small torque of the load, and will actively accelerate the work to the set frequency with fast acceleration time and smooth starting current, and actively judge the recovery energy of the load when decelerating, and actively stop the motor with fast deceleration time under the premise of smoothness.
2. The difference between Delta's C200 series and C2000 series
Solution(s):
The C200 replaces the VFD-B series and compensates for the low competitiveness of the C2000 with low horsepower.
The C200 is designed for models up to 10HP, is cost-effective, and focuses on the global low-horsepower inverter market.
3. What kind of communication method does Delta inverter choose?
Solution(s):
At present, Delta's inverters are built with the international standard MODBUS communication protocol and RS-485 communication method.
4. Can Delta's inverter have greater braking power?
Solution(s):
Generally, the braking force of the inverter is about 10%-20% of the additional torque, and the braking force of the inverter can be increased if the braking unit is included or installed.
5. How to use a PC to control Delta's inverter?
Solution(s):
The communication interface of Delta's inverter is to use RS485 to cooperate with the ModBus communication format commonly used in the general industry for material handing, so as long as the general ModBus software is used, the driver can be read and written using a PC. In addition, Delta also provides ModBus DLL files to facilitate program compilation and development (DLL files can be downloaded from the download area, and the programmable controller software can be downloaded to download the Delta Modbus communication library). Cooperate with the software developed by the above DLL files, you can directly set, supervise and control the internal parameters of the driver. Ex: The communication of the driver is set to (default value: station number 1, ASCII form), then the driver will be issued ":010620000002D7\x0D\x0A" through ModBus, and the driver will start working. ":010620000001D7\x0D\x0A", the drive will stop working.
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Features of two-phase electric fan inverter - Delta
With the continuous development of science and technology, there are more and more types of domestic machinery and equipment, and the upgrading of equipment is getting faster and faster. So what are the characteristics of two-phase electric fan inverter and whether it is worth choosing for enterprises. ...
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DC motor speed regulation method - Delta
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 to the armature circuit.
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When the Delta inverter is powered on, the uptube drive voltage is established
One is hardware, similar to the CPU reset circuit, which gives the downtube a short high-level drive pulse during the initial power-up, and then the voltage drops to 0 to cut off the downtube.
The second is the software, when the CPU is operating normally, it outputs a square wave pulse that only needs to be turned on by the lower three tubes, so that the upper tube ...
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Analysis and correction of the cause of Delta servo drive alarm
Analyze and correct the cause of Delta servo drive alarms.
Control current and undervoltage protection.
Alert Number: 11.
Reason: The voltage at the end of the dynamic DC bus is lower than the specified value. Due to the instantaneous shortage of power supply capacity, the control voltage is too low.
Measure: Measure the DC bus ...
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The inverter reported the cause of the grounding fault - Delta
Regarding the grounding problem, it can generally be swept away after the following steps (because most of the inverters are not easy to detect the current measurement of Hall components, it is very important to sweep the grounding caused by external conditions, and alternative methods can be selected if there are conditions, and it is still an external problem to change a normal load to see whether it is a problem of frequency conversion or an external problem ...
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Description of Delta inverter problems and solutions
Problem Description:
What is stall avoidance?
Solution(s):
If the given acceleration and deceleration time is too short, the output frequency of the inverter changes faster than the motor speed, and the inverter will stop working due to overcurrent, which is called stalling. In order to make the motor ...
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What are the series of Delta inverters?
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 fans and pumps, conveyor belts on food and pharmaceutical machinery, etc., and are used for abbreviated ...
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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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Delta's touch screen downloads programs and communication settings
1. Touch screen download program
(1) Device software DOPSoft;
(2) The communication line uses a square port data line;
(3) device drive;
(4) Configuration screen;
(5) In the Stuff, select Download All Materials.
2. Communication settings
(1) Touch screen settings
...
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Precautions for long-term idle use of Delta inverter
If the inverter is to run the equipment again after being shelved for more than half a year, the probability of damage may be greatly increased due to many factors such as the placement environment, the service life of the inverter, and the load rate, and the failure usually presents the following problems:
1. After the equipment is powered on, it becomes ...
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Far EasTone telecommunications, delta and Microsoft jointly work together to build a 5g intelligent factory
Far EasTone Telecommunications, Delta Electronics, and Microsoft Corporation in Taiwan, China, announced today 8 that the three parties will work together to build a 5G smart workshop. With the characteristics of "big things" (network big data, artificial intelligence technology, Internet of Things technology), combined with 5G80MHz continuous network bandwidth, the integration of servo independent innovation and intelligence ...
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Delta's DTK series thermostat product model
DTK4848C01 High brightness LCD display, 48*48, Pt resistor/thermocouple input, 4-20mA output, 1 alarm
DTK4848R01 High brightness LCD display, 48*48, Pt resistor/thermocouple input, relay output, 1 alarm
DTK4848V01 Highlight ...
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Delta servo system composition
The servo system is mainly composed of a servo controller, a drive circuit, a servo motor and the corresponding reaction testing equipment.
(1) Servo motor
Servo motor refers to the motor that controls the mechanical components in the servo system, and the servo motor has an encoder inside, which can respond to the movement in real time.
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The cause of the damage of the inverter - Delta inverter
First, the heat dissipation of the inverter is not good
In fact, we all know that too high a temperature has a damaging effect on any equipment, just like a human brain, too high a temperature will also burn out the brain, in fact, the same is true for inverters. When the temperature rises, because of the sensitivity of semiconductors to temperature, the inverter ...
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Precautions for Delta's DPA pressure sensor
1. When the device is installed, leave the place with high voltage and strong high-frequency noise to prevent disturbance. Prevent use in places where the following conditions occur:
(a) Excessive dust and corrosive gases; (b) high humidity and very high radiation; （c） ...
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The frequency of the inverter is given in a given way - Delta
The main way to use the inverter is to change the output frequency to achieve the controllability of the motor speed, so do you know what steps are required to complete the output frequency controllability? One of the main points is how to complete the change of the frequency signal supplied by the inverter equipment.
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Inverter Fault Repair Test Method - Delta
Static quizzes
1. Test the rectifier circuit
Find the P and N ends of the DC power supply inside the inverter, adjust the multimeter to the resistance X10 gear, connect the red watch rod to P, and separate the black watch rod to R, S, T. Instead, connect the black watch rod to the P...
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Installation requirements for inverter energy consumption braking - Delta inverter
(1) The wiring interval between the braking unit and the inverter, as well as between the braking unit and the braking resistor, should be as short as possible (the wire length should be less than 2m), and the wire cross-section should meet the requirements of the braking resistor discharge current.
(2) The brake unit is working ...
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The gateway is connected to the Delta inverter
This example is an example of the equipment used to connect a Modbubs to Profinet gateway to a Delta inverter, and the equipment used is a Siemens 1200 PLC, a Delta inverter, and a DJI Modbus to Profinet gateway.
1、Mo ...
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Intelligent thermostat adjustment method - Delta
1. Set temperature: Press the SET button to set or view the temperature set point. Press the SET key digital tube character beginning flash, indicating that the appearance has entered the setting state, press the △ key to increase the set value, press the ▽ key to decrease the set value, press and hold the △ key or ▽ key The data will change rapidly, press the SET key again The appearance back ...
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