The protection function of the inverter - Schneider

In general, depending on the phenomenon of equipment problems, the scope of the problem can be roughly confirmed as follows: 1) All button functions fail, and there is a high possibility of power supply or fuse problems. 2) Some buttons are invalid, and some of the buttons are functioning normally ...

The Schneider inverter model generally reflects the rated voltage, rated power, and load requirements of the inverter (heavy load is still light load type). Here are 2 examples: Example 1: Schneider inverter model: ATV71HD11 ...

1. In terms of logo, the logo of the product is a sign of identity, so the genuine products will be very exquisite. The imitation is not very well handled on the logo, the plane contrast above the letter "A" is narrow, and even the top is directly pointed. We must pay attention to this point. 2. From ...

Why is the use of inverter for fan and pump loads to save energy? According to the basic laws of fluid mechanics, it can be seen that the fan pump load is a typical square rotation load, and its main characteristics are: speed n and torque T and load ...

In life sciences careers, equipment performance is critical to ensuring business continuity and useful production time. The main challenges faced by the industry include: maintaining the positive impact of environmental parameters on product quality, managing multiple systems in a "siloed" state, and using existing infrastructure sensitively and efficiently.

A kind of pressure reducing valve in instrumentation refers to a kind of equipment used to control the pressure value. Pressure reducing valves are usually used in water-related categories, because from the perspective of the transmission medium, the transmission medium of the equipment is mainly water, but we all know that water is a thing that will ...

The interference encountered by sensors and instruments in the field operation is varied, and the specific situation is analyzed on a case-by-case basis, and the principle of anti-interference is to adopt different methods for different disturbances. This flexible and mobile strategy is undoubtedly opposed to universality, and the way to deal with it is to choose a modular approach, except for ...

1) Survey and research method. The investigation and research method is to "see", "listen", "smell", "touch" and "ask" to understand the significant faulty phenomena; After visiting the operator, understand the cause of the problem; A common way to help find faults after consulting others or consulting information ...

The orifice flowmeter is a high-range ratio differential pressure flow device composed of a standard orifice plate and a multi-parameter differential pressure transmitter (or differential pressure transmitter, temperature transmitter and pressure transmitter), which can measure the flow rate of gas, steam, liquid and natural gas. Widely used in petroleum, chemical, metallurgy, electric power ...

PHF: 1. The power supply of the inverter is not right or the fuse is blown; 2. There is a transient problem in a certain phase. 1. Check the power connection and fuse; 2. Reset. USF: 1. Power supply voltage undervoltage; 2. Instantaneous voltage drop; 3. The load resistor is damaged. 1 Check the power supply voltage; 2 Substitutions ...

(1) The intent is different The intent of the verification is to carry out a mandatory comprehensive appraisal of the measuring equipment. This comprehensive identification of areas attributed to the value of the same value is a top-down process of value transfer. The verification shall identify whether the measuring equipment meets the specified requirements. This kind of regulation requires ...

1. Why is the inverter used for fan and pump loads to save energy? According to the basic law of fluid mechanics, it can be seen that the fan pump load is a typical square rotation load, and its primary feature is that the speed n has the following relationship with the torque T and the load power P: T∝n2, P∝n3. ...

To repair the output board driven by the inverter, we must first investigate whether the components on the PCB board are burned out, replace them first, and then analyze what causes the burned out and deal with this problem. And then...

Recently, Armis security researchers have reported that Schneider Electric's programmable logic manipulators (PLCs) have serious and unpatched gaps in long-distance code fulfillment, allowing intruders to manipulate their various industrial systems. Schneider ...

The unreliable contact touch will increase the touch resistance between the dynamic and static contacts, resulting in the high temperature of the touch surface, making the surface touch become a point touch, and even showing a non-conduction phenomenon. The reasons for this failure are: (1) There are ...

1. Defective device The lead wire of each pile head is not firmly connected and loosened for a long time, which will cause the pile to heat and oxidize, burn out the outer insulation of the wire, and announce sparks and burnt smell, forming undervoltage of the line, and the air switch action. 2. The leakage switch does not match the load The actual electricity load of the home is large ...

The UPS power supply can supply power for a period of time after the power is cut off, but how long can the UPS power supply be powered after the power outage? UPS power supply manufacturers said that the power supply time of UPS power supply is inconsistent according to the load power, the number of batteries and other factors. ...

1. The ATV32 inverter reports that the bLF is a brake control fault. Possible causes: 1. The brake release current is not reached. 2. When the braking logic control is assigned, only the closing frequency threshold [brake closure frequency] (bEn) is adjusted. Repair measures: 1. Check the inverter/electric ...

　Debugging parameters: ​ 1. Acceleration and deceleration time Speed up the time setting requirements: the acceleration current is constrained below the overcurrent capacity of the inverter, so that the overflow will not cause the inverter to trip; Deceleration time setting key ...

The appearance of the instrument plays a very important role in the air separation equipment and gas purification process, and it is indispensable for the adjustment of the air separation process and the detection of product quality. Because there are different types of on-line profiles for monitoring targets in different gaseous media at each stage of the ASU process, the ...