1. The influence of leakage current on the motor and countermeasures
If the wiring length is very long, the stray capacitance between the wires will increase, resulting in leakage current. It will initiate overcurrent maintenance, increase leakage current or not ensure the correctness of the current display. The worst condition is that the inverter will be damaged. If an inverter is connected to more than one motor, the wiring length should be the sum of the lengths of all wiring to the motor. If a motor driving a 460V model is installed between the inverter and the motor to prevent the motor from overheating, the heat accumulation station may malfunction, even if the cable length is less than 50 meters. In this case, an output reactor should be added (optional) or the carrier frequency should be reduced (parameter 00-17 "Carrier frequency") should be used.
2. The influence of surge voltage on the motor and countermeasures
When the motor is driven by the inverter PWM, the motor coil is relatively simple and has an adverse effect due to the surge voltage (dv/dt) generated by the switching of the inverter power crystal. If the cable of the motor is particularly long (especially in the inverter of the 460V model), the surge voltage (dv/dt) will cause the motor to deteriorate and damage the bearing. In order to prevent this phenomenon, please use the following ideas:
a.Use a motor with a high absolute edge
b. The wiring length between the inverter and the motor is reduced to the proposition value
c. Frequency converter with output reactor (optional)
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Introduction to common models and parameters of Delta touch screens
There are many types of Delta contact screens, of course, the parameters of different types are different, and the most important product is DOP-B03S201. This product is a 4.3-inch screen, its aspect ratio is 16:9, the screen is made of TFT raw materials, and its resolution can reach 480X ...
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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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Inverter setting method - Delta
The first step is type recognition: acknowledging whether the type of inverter is common to the type of inverter purchased. If not, ask the agent to return the item.
Step 2: Shipping Acknowledgement: After opening the package, check whether the inverter is damaged during transportation. If there is damage, let the agent return ...
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Delta's B2 series servo motor parameter setting
Automatic:
P0-02 Drive Status Display Parameter Function: 07Motor Speed (r/min)
P1-01 Control form and control command input source setting parameter function: 02 Select S form (r/min)
P1-38: Zero speed detection accuracy (no response below set speed)
P1-4 ...
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Delta launched an integrated control solution for layer winding
As factories move from automation to intelligence, the requirements for equipment performance and scalability are progressing day by day. In response to the rapid development of electronic engineering, transportation and mechanical engineering and other occupations, in order to quickly manufacture related product parts and components, metal coil winding technology is also being carried out at a high speed.
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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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Delta's inverter failure analysis
1. Fault code:
SE1 parameter replication error
Fault Description:
Keypad replication function error correct
Solution:
Keypad replication action errors, including communication delays, communication errors (Keypad received FF86 errors), and parameter value errors
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The inverter has a function – a Delta inverter
1. Soft start is energy-saving
The hard start of the motor will cause a serious impact on the power grid, and it will also require too high the capacity of the power grid, and the large current generated when the motor is started and the sensation will cause great damage to the baffle and valve, and the service life of the equipment and pipeline will be extremely unlucky. And the use of inverter energy-saving devices ...
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The reason for the slow response after the frequency converter potentiometer adjusts the frequency - Delta
The external use resistor is an external operation form of the inverter, which controls the inverter through the external operation signal generated by the external starting switch and frequency setting potentiometer. The regular external voltage signal of different inverters is different.
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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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Replaced by discontinued models of Delta inverters
Delta's new generation of compact and efficient vector-controlled inverter MH300, adhering to the good driving function of Delta's inverter, has six advantages: compact size, flexible application, stable system, reliable quality, and easy installation.
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Delta's high-performance servo ASDA-A3 series is a new product
With the rapid development of automation technology and shopping malls, customers have higher and higher requirements for the speed, accuracy and function diversification of servo products. In order to get used to the needs of shopping malls, recently, Delta launched the high-performance motion control high-end AC servo system ASDA-A3 series ...
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Regular diagnosis and repair method of Delta servo motor
1. Common faults of motor heating up too high or smoke motor
Causes: 1. Excessive load; 2. Two-phase operation; 3. Blocked air duct; 4. The working temperature is too high; 5. Interphase or inter-turn short circuit fault of motor stator winding; 6. Motor stator winding grounding device; 7. The power supply voltage is too high or too low;
Overhaul...
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Delta's PLC programmable controller product list
1. Programmable manipulator AH series
Delta's AH series modular controllers provide automation system solutions for high-end applications. The AH series adopts a comprehensive modular design, and on the basis of Delta's research and development skills, it has developed ...
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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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Measures to avoid soft failure of inverters - Delta
The ways to reduce the soft fault of the inverter are: 1. Detect the overvoltage and undervoltage of the inverter; 2. Detecting overcurrent is the most frequent phenomenon of frequency conversion alarm.
Generally, the overvoltage alarm is generally presented at the time of shutdown, and the primary reason is that the deceleration time is too short or the braking resistance and braking unit have ...
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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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Precautions for long-term idle inverter - 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:
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DC governor overhaul method - Delta
DC governor is a kind of motor speed regulation equipment, including motor DC governor, pulse width DC governor, thyristor DC governor, etc. Generally, it is a modular DC motor governor, which integrates power supply, control and drive circuits, selects three-dimensional structure layout, and selects micro-power consumption elements for control circuits.
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Delta's servo drive ASDA-B2-F motion control alarm
Abnormal alarm indication Abnormal alarm title Abnormal alarm action content Sweeping method Indicate DO servo status Switch
AL111 DMCNET Packet Receive Overfill Rx Buffer Overfill (more than two DMCNET packets received within 1 millisecond) ALM ON
AL185 DMCNET Bus Hardware ...
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