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Problems in the inverter application – Delta inverters
1. Harmonic problems
The equipment that plays the role of switching in the main circuit of the inverter must generate harmonics in the process of turning on and off the circuit. The lower harmonics generally have a greater impact on the motor load and cause torque ripple; The higher harmonics increase the leakage current of the inverter's output cable, making ...
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The basic methods and steps of inverter debugging - Delta inverter
1. No-load energizing test of inverter
1. Ground the grounding terminal of the inverter.
2. Connect the power input terminal of the inverter to the power supply through the leakage maintenance switch.
3. Check whether the factory display window of the inverter is normal, if it is incorrect, it should be reset, no ...
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Important parameters of Delta inverters
The inverter is the pioneering work of Delta Automation, and it is also the largest selling product of Delta Automation. In the highly competitive market, Delta inverters have always maintained a strong growth momentum and made great achievements in the high-end product market and the economic product market. Delta continues to launch high-end products ...
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Debugging method of Delta servo motor
1. Initialize parameters
Before wiring, initialize the parameters.
On the control card: select the control method; Reset the PID parameter to zero; When the control card is powered on, the enable signal is closed by acquiescence; Save this condition to make sure that the control card ...
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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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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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Inverter optocoupler device type - Delta
1. One is a triode type photocoupler, such as PC816, PC817, 4N35, etc., which is commonly used in the output voltage sampling and error voltage amplification circuit of the switching power supply circuit, and is also used in the digital signal input loop of the inverter control terminal. The structure is the simplest, and the input side consists of a light-emitting two...
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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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Common knowledge points of Delta inverters
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 deceleration time required for the inverter to decelerate from "high operating frequency" to 0.00Hz.
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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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Method for measuring temperature rise during reducer operation - Delta
The thermometer method and resistance method can be used to measure the temperature rise of each part of the reducer.
1) Thermometer method: This is the easiest way to measure the temperature directly, and it is commonly measured by an alcohol thermometer. When measuring, the thermometer can be placed close to the ...
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The technical advantages of the three-axis positioner - Delta
1. The welding station is actively handed over, and the operator has been loading and unloading parts in a fixed position, which effectively reduces the labor and logistics intensity of the operator, and the welding products of the whole set of equipment have strong compatibility and strong automatic welding scalability.
2. All ...
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Introduction to Constant Power and Constant Torque in Frequency Conversion Speed Regulation - Delta
In general, factory motors are based on the additional speed values obtained at a given power frequency voltage (380 V, 50 Hz). If 380V is not reached under actual operating conditions, e.g. as long as 300V, 50 Hz, the voltage is significantly undervoltaged. Fundamentally, it cannot reach the extra rev value, due to the ...
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Post-inverter shutdown maintenance project – Delta
1. Use a vacuum cleaner with a plastic nozzle to completely clean the inside and outside of the inverter cabinet to ensure that there is no excessive dust around the equipment.
2. Check the ventilation and lighting of the inverter room, and the ventilation equipment can work normally.
3. Check the inverter ...
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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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The robot reducer accessories are faulty
Robot harmonic reducer is a kind of power transmission organization, which uses the speed converter of the gear to reduce the number of revolutions of the motor (motor) to the required number of revolutions, and obtains a larger torque organization. The scale of use of the reducer is quite extensive, if the noise of the reducer is too loud, it will hinder people ...
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Delta's active front-end and inverter's coordination
The popularity of frequency converters has brought significant energy savings to industrial applications. However, the high-frequency switching signal generated by the inverter is easy to cause electromagnetic interference and affect the power quality. Especially in industries with large loads such as lifting and elevators, it is becoming more and more obvious.
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The principle of Delta's inverter inverter
As far as I know, since the advent of active induction motors, there has been a variable frequency operation in the way of communicating generators. Change the rotational speed of the generator, and change its output frequency. Before the advent of high-speed transistors, this was one of the main ways to change the speed of the motor, but due to the decrease in the speed of the generator ...
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Delta's M series inverter communication parameter address problem
In Delta's M series inverters, the parameter address 2000H corresponds to abort, start, JOG, and forward, rotation, and change direction. Why is "aborted" at the time of writing the program H01, "start" is H10, "forward" is H12, and "rotation" is H22.
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Inverter maintenance and accessories should be replaced regularly – Delta inverters
1. Before the inverter is energized
The temperature and humidity of the surrounding environment should be detected first. Too high a temperature will cause the inverter to overheat the alarm. When severe, it will directly lead to damage to the power supply device of the inverter and short circuit of the circuit; Excessive humidity of the air can lead to a direct short circuit inside the inverter. When the inverter is in operation ...
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