1. The contact screen all-in-one machine adopts the new contact identification technology, and the user only needs to touch it lightly on the contact screen without passing the pressure sensing to complete the operation. Care must be taken not to use too much force or sharps to scratch the surface of the contact screen.
2. In order to ensure the normal use of the user, all foreign objects on the contact screen should be eliminated to ensure that the fingers are boring and clean. And avoid placing this product in an address that is prone to dust accumulation or high temperature and humidity.
3. The shell of this product is easy for users to clean, in order to ensure the safety of users, please use a soft cloth to scrub the screen and frame after shutting down
4. Pay attention to scrubbing, do not scrub upwards, but scrub the screen from top to bottom
5. Please clean up the dust at the corners and bottom bezel of the screen in time to avoid affecting the contact positioning of the screen due to dust accumulation. Small obstacles must not be placed or discarded at the four corners and bezels of the screen to avoid being isolated by obstacles and causing the contact screen to be unable to be positioned.
6. Note: Under the normal use of the user, the contact operation of this product will not affect the execution of other computer operations.
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Learn the way of inverter - Senlan inverter
The inverter is an essential accessory in industrial use, and its main function is to regulate the speed of the motor. It is widely used in various equipment such as production F-line and machine tools. Many engineering people have touches.
The functions of the inverter are many, the parameters are complex, and it is difficult to play without professionals. ...
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Causes and solutions of inverter skipping current faults - Senlan
1. There is a short circuit to the ground in the output circuit of the inverter, you can check whether the wiring is correct and troubleshoot
2. If the motor parameters are incorrect, you can check the parameter settings and identify the parameters
3. The acceleration time is too short, and the acceleration time can be increased.
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Inverter parameter setting method - Senlan
1. Control method:
i.e. speed control, rotation control, PID control, or other methods. After the control method is adopted, it is generally necessary to carry out static or dynamic identification according to the control accuracy.
2. Minimum operating frequency:
That is, the minimum speed of the motor operation, the motor at low speed ...
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The main step of inverter debugging - Sunland inverter
Investigation of the function of the inverter system
Before debugging the frequency converter, it is necessary to carefully read the operation instructions and related information of the inverter to be debugged to understand the application environment and precautions. Especially before the inverter is energized, it is necessary to carefully observe and see if the inverter has obvious problems.
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15 Inverter Definitions – Hope Sunland
1. What is frequency conversion resolution? What's the point?
In the case of digitally operated inverters, the output frequency is given in a given order, even if the frequency command is an analog signal. The smallest unit of this gradient is called the variable resolution. Change...
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Failure of robot contactor and inverter - Senland
Robot contactors are noisy?
Cause:
It is likely that the joint contact surface of the contactor is uneven, and the surface is sand or rust. The result will constitute a phase loss, which will lead to the burnout of contactors, switch frequency conversion and other components.
Solution:
will control the ...
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Introduction to the speed regulation mode of inverter motor - Senlan
1. Mechanical speed regulation form
There are three methods of mechanical speed regulation: electromagnetic clutch, hydraulic coupling, and viscous clutch. Among them, the hydraulic coupling device is widely used, that is, a hydraulic coupling device is connected in series between the motor and the load, and the concave and convex liquid level is used to adjust the hydraulic coupling between the motor and the load.
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Senlan low-voltage inverter has four series of applications
1.SB200 fan pump special inverter, widely used in textile, printing and dyeing, washing, cable, packaging, machinery, ceramics, constant pressure water supply, constant temperature control or various OEM.
2.HG1000 high-performance light-load intelligent inverter ...
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The inverter is regularly replaced with the device - Sunland inverter
1. Cooling fan
As a prerequisite for ensuring the normal operation of the inverter, efficient and fast in-line cooling fans have become an indispensable conversion configuration of the inverter. Because of the wear of the internal bearings of the cooling fan and the reduction of the grease function in the process of application, the cooling of the fan.
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I/O (Input/Output) Selection – Senland
In the 90s of the 20th century, PLC has formed a variety of PLCs: micro, small, medium, large and giant. According to the number of I/O points, it can be divided into five types: micro PLC (32 I/O), small PLC (256 I/O), medium PLC (1024 I/O), large PLC (4.69 I/O), and giant PLC (8195 I/O).
...
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Inverter overcurrent protection solution - Senlan
1. Causes of overcurrent
There are many reasons for the occurrence of overcurrent, including soft and hard problems.
1. Causes of soft failures
When the acceleration or deceleration time in the inverter parameters is set too short, and the motor power is heavy, it means that in the acceleration, the inverter's ...
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The harm of low temperature to the inverter - Senlan
Most VFDs are suitable for -10°C-50°C, and if the temperature is too low, the VFD will be affected.
Precautions for low-temperature operation of VFD:
1. VFD should be operated in an environment above minus 10°C as much as possible, preferably indoors.
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The reason for VFD trip protection - Senlan
In general, there is a problem with the maintenance trip of the VFD. If you look at the faulty code, you can see what kind of fault is causing it.
1. The selection talent of VFD may be too small; Generally, when selecting VFD, it should be about 20% larger than the rated power of the motor, so that when the motor reaches full load...
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The reason for the explosion of the inverter module - Senlan inverter
1. Condensation The temperature difference in the workshop is large, and the inside of the inverter presents condensation.
2. Impact load. The load fluctuates greatly, and the output current of the inverter suddenly increases, resulting in module damage.
3. The inverter is overloaded in the start, ...
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The device inside the inverter that needs to be replaced regularly - Sunland
1. Cooling fan
As a prerequisite to ensure the normal operation of the inverter, efficient and fast in-line cooling fans have become an indispensable conversion configuration of the inverter. Because of the wear of the internal bearings of the cooling fan and the reduction of the grease function in the process of application, the cooling of the fan.
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How to choose an inverter - Hope Sunland
The selection of the inverter should be considered according to the type of controlled object, speed regulation scale, static speed accuracy, starting torque, etc., so that it can be easy to use and economical together with meeting the process and production requirements. According to the different forms of devices, it can be divided into four types, which can be divided into four types according to the controlled motor power and field device ...
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Hope Senlan inverter selection
Hope Sunland inverter is a high-performance inverter product, which has high operational reliability, high energy efficiency, strong control performance and long service life. Hope Sunland inverter has been widely used in industrial process production control, machinery control, water treatment, construction and transportation and other fields. This article will start with ...
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Anti-interference measures in the application of Sunland inverter
The main manifestations of the disturbance of the inverter in the application are: higher harmonics, noise and oscillation, load matching, heat generation and other problems. These disturbances are unavoidable, because the input part of the inverter is a rectifier circuit and the output part is an inverter circuit, both of which are made up of nonlinear components that play a switching effect.
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Motor inspection and maintenance, motor problems - Senlan
1: In the operation of the motor, if dust, water stains and other debris enter its interior, it will constitute a short-circuit medium, which can damage the wire insulation layer, form an inter-turn short circuit, increase the current, increase the temperature and incinerate the motor. Therefore, dust, water stains and other debris should be prevented from entering the motor.
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Calculation method of braking resistance and power of inverter - Sunland inverter
(1) Brake usage rate ED%
Brake usage rate ED%, that is, the brake usage rate in the clarification book ED%. The brake utilization rate ED% is said to be the deceleration time T1 divided by the deceleration cycle T2, and the brake utilization rate is mainly to allow the braking unit and the brake resistance to have sufficient time to dissipate ...
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