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	Delta's M300 series inverters are used in primary and auxiliary frequency applications I. Introduction Some devices will have many transmission organizations, and it is impossible for the transmission organization to achieve 100% speed synchronization, so it is necessary to introduce ------ The final motor speed of the pendulum roller is *** := main speed + (+-auxiliary correction change) Use the site ...
	Misunderstandings in the application of Delta inverters The capacity selection of the inverter is based on the rated power of the motor Myth: The capacity selection of the inverter is based on the rated power of the motor Compared with the electric motor, the price of the inverter governor is more expensive, so it is important to ensure that the ...
	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 ...
	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 ...
	Introduction to the basic application of Delta inverter Generally, household appliances use a single-phase asynchronous motor, which relies on capacitance or resistance to split the phase. Motors are often in a short-term repetitive state (on/off) during operation, such as air conditioners, refrigerators, etc. This will inevitably lead to frequent starting, high noise, short motor life, poor temperature stability and energy consumption.
	Introduction to the internal components of the inverter - Delta inverter Rectifier circuits It consists of six rectifier diodes from VD1 to VD6 to form an uncontrollable full-wave rectifier bridge. Regarding the rated power supply of 380V, the reverse withstand voltage value of the diode should be 1200V, and the forward current of the diode is 1.414-2 times of the rated current of the motor. ...
	Several veins of the inverter circuit - Delta inverter 1. Vibration circuit: the leakage-source and R4 of the main winding N1 and Q1 of the switching transformer are the channels of the power supply operation current; R1 provides the starting current; The self-powered windings N2, D1, and C1 constitute the power supply voltage of the vibrating chip. The normal operation of these three links is the prerequisite for the power supply to vibrate.
	Inverter Troubleshooting Skills - Delta (1) The inverter drives the motor to jitter When repairing an Yaskawa 616PC5-5.5kW inverter, the customer indicated that the motor was shaking when sending it for repair, and the output voltage was unbalanced. After checking the power equipment, it was found that there was no damage, the inverter was energized and the display was normal, the inverter was operated, and the measurement ...
	Voltage regulator selection method - Delta inverter 1. Capacity safety factor The AC regulated power supply is based on the output apparent power (kVA) as the nominal rated capacity, and the load is not purely resistive under normal circumstances, that is, the power factor COS¢≠1, and the active power that the regulator can output in practice kW = capacity (kVA) × COS¢. So in the real ...
	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 ...
	The cause of inverter heating - Delta inverter 1. The problem of the inverter and the motor itself If the motor has been used for a long time, it is not good to clean the insulation function, or the bearing may be stuck, and it may show a large current and heat. The coupling between the motor and the load may also be worn, or the motor is unbalanced, the fixtures of the motor are loose, etc.
	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 ...
	Reduce the failure rate of Delta's inverters Daily View Item 1: Check whether the sound of the motor changes abnormally during operation, including whether there is vibration during the operation of the motor. Project 2: Check if the environment of the inverter unit has changed. For example, whether the ambient temperature is normal. Familiar with Delta's inverter ...
	Precautions for inverter selection - Delta The selection of the inverter is mainly determined by the load characteristics of the drive and the actual working current of the motor, in addition to the following precautions: 1. The environment is suitable for some high temperature (higher than 50 degrees) and high altitude (higher than 1000 meters).
	The impact of inverter cable design on the life of motor cables Reflected waves that affect the impedance mismatch between the cable and the motor are pervasive in all AC VFD applications. The severity of the problem depends on the length of the cable, the rise time of the PWM (Pulse Width Modulation) carrier, the voltage of the VFD, and the magnitude of the impedance difference between the motor and the cable. ...
	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 ...
	Servo motor speed improvement method - Delta When many engineers debug servo motors, they often have such a problem: why is my servo motor so slow, how can I improve the speed, and how much can the maximum speed reach? The basis for the confirmation of the speed method of the servo motor: the speed of the servo motor. ...
	Installation steps of the reducer - Delta Correct installation, operation and maintenance of the reducer is an important part of ensuring the normal operation of mechanical equipment. Therefore, when you install a planetary reducer, it is necessary to carefully assemble and operate it in strict accordance with the following matters related to the operation of the device. ...
	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 ...
	Repair of Delta inverter problemsView items Daily inspection item 1 of Delta's inverter problem repair: Check whether there is any abnormal change in the sound of the motor during operation, including whether oscillation occurs during the operation of the motor. Delta's daily inspection of inverter problem repair ...
	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 ...