1. When the Delta inverter breaks down in the future, it is best not to hand it over to someone who has no experience in repairing the inverter to repair the inverter, otherwise it may get worse and worse. Sometimes it is about to fuse, be sure to check whether there is a problem with the module, some electricians have no experience, immediately install a good fast melt (absolutely can not be replaced by copper wire), the result is that the inverter is burned, according to our experience, if the fast fuse is mostly problematic, but the module is not necessarily broken. Many inverter power modules and rectifier modules are interchangeable, and the original type should be bought as much as possible, but the price may be high.
2. Dust and moisture are the deadliest killers of Delta inverters. Especially when the dust stuck to the circuit board returns to moisture after a few days of shutdown, then the circuit board of the inverter in the background of the power transmission is the easiest to ignite and damage, and it is best to install the inverter in the air-conditioned room, or install it in the electric cabinet with dust nets. Clean the dust on the circuit board and radiator regularly; If the inverter has been shut down for a period of time, it is best to blow the circuit board with a hair dryer before powering on. Delta's inverter that often needs to stop in an emergency is best to add a brake resistance or choose a mechanical brake, otherwise the inverter will often be impacted by the motor's back EMF, and the failure rate will be greatly increased.
3. Some factories are powered by generators, the voltage is unstable, the Delta inverter is often damaged, the generator is installed with voltage stabilization or overvoltage protection device, and the disturbance of other inverters is also a headache, it will make other electronic equipment unable to use normally, at this time, the input, output, and control lines of the Delta inverter are best shielded wires, and the shielding wiring method cannot be wrong. Otherwise, the effect is opposite, and it is possible to cover it with an iron pipe, install a filter, and adjust the carrier frequency.
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Wind turbine inverter speed regulation effect - Delta
What is the effect of speed regulation of fan inverter? According to the query materials, in industrial production, the throttling loss of the damper, baffle and other related equipment of the fan, as well as the protection and maintenance costs account for 7%-25% of the production cost.
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Solution to Delta inverter fault CE1 and CE2
Product range:
CP/CH/CT/C2000/C200/MS300/MH300/VE/ED/VJ
Problem Code:
CE1
Problem Description:
Communication is abnormal
Solution:
1. Communication error: RS-485 Modbus function code may be faulty
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Introduction to common models and parameters of Delta touch screens
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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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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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The principle of Delta's inverter inverter
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DC governor overhaul method - Delta
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Touch screen controls the inverter step – Delta
1. The touch screen is controlled by PLC inverter
1. At present, the general control of the inverter needs to choose PLC to communicate with the inverter, read the information of the inverter, and then the touch screen communicates with the PLC to complete the control of the inverter to start, stop, and monitor the operation of the inverter.
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How to use a PC to control Delta's inverter
Problem Description:
How does Delta inverter use a PC to control it?
Solution(s):
The communication interface of Delta's inverter is based on RS485 and the ModBus communication pattern commonly used in the general industry for material handing.
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Delta's inverter method to reduce the failure rate
Daily inspection item 1 of Delta's inverter problem repair:
Check whether there are any abnormal changes in the sound of the motor during operation, including whether there is vibration during the operation of the motor.
Routine inspection item 2 of Delta inverter problem repair:
Check out the inverter installation environment is ...
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Problems in the use of Delta inverters and Delta motors
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Delta's active front-end and inverter's coordination
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How does Delta inverter adjust the frequency?
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Delta's DTK series thermostat product model
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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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