The test input does not conform to the "short" rule, and the problem is here. 1. Overhaul according to the comparator rules, fit it, the piece is good, and check the periphery; It doesn't fit, the piece is bad. 2. It does not fit the "virtual break" - there are ...

In the process of controlling the motor, the motor variable-frequency drive (VFD) may still have a certain kinetic energy when the motor rotates intermittently due to factors such as the moment of inertia of the motor, and the braking resistor is required to interrupt the motor. Here's a ...

The given frequency refers to the frequency at which the inverter is set to operate, and the given frequency can be given by the operation panel or by the external method, during which the external method is divided into voltage and current. First, the operation panel is given a frequency ...

The two wires are connected to the resistor, and the other wire is connected to the conditioning terminal. The red thread is attached to the blackhead and inserted in a small hole. Connect both ends of the IR potentiometer to +10V and ACM, and slide the termination to the voltage input terminal AVI. ...

1. AL001: overcurrent, the current value of the main 2113 circuit exceeds the motor instantaneous 5261*** high current value 1.5 times when the action is 4102. 2. AL002: overvoltage, the voltage value of the main return 1653 channel is higher than the standard value. 3. AL003: low voltage, the voltage value of the main circuit is lower than the standard.

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 ...

It refers to the degree to which the average value measured repeatedly under certain test conditions is consistent with the true value, which is indicated by error. It is used to indicate the magnitude of the error in the system. In practice, control tests are generally carried out with standardized substances or normative methods, and when there are no standardized substances or normative methods, it is often used to add ...

(1) Whether the closing condition of the isolation switch is not defective, and whether there is any failure or dislocation; (2) The porcelain insulation of the isolation switch should be free of defects, no cracks, no discharge phenomena and flashover traces; (3) Contact inspection: a. Check the contact ...

1. Determine the type and maintenance situation of Schneider circuit breaker according to the maintenance requirements of the line, and determine the selection of frame type, device type or current limiting type. Generally speaking, the Schneider frame circuit breaker can break the short-circuit current with a large device type and a large volume. Usually, the branch line chooses ...

P0.0——P0. 7 : Port P0 is an 8-bit open-drain bidirectional I/O port. When visiting off-chip memory, it is time-shared for a low-8-bit address and an 8-bit bidirectional data bus. When EPROM is programmed, the instruction byte is input by P0, and when the program is verified, it outputs ...

The power supply of the DPLC should be taken from the trunk line with a relatively stable voltage or the special line led by the bus of the substation to ensure the voltage quality of the PLC. If the voltage fluctuates too much, consider installing a voltage regulator or uninterruptible power supply (UPS). 2. The power cord is best to use twisted pair, and its cross-sectional area should not be less than 2 square millimeters.

There are many novices who are not familiar with the fake load when repairing the inverter, and the repair of the inverter saves many of their modules with the false load, because the novice repairer generally does not know how to do this, and now the light is on to make it clear that the module is going to be broken. A false load is a resistor with a few hundred ohms ( ...

1. Question-F 05 (frequency error): This problem is caused by a problem with the soft starter processing the internal power signal, which is causing errors in the power supply frequency. This situation needs to be handled by the company's product development software design engineer. Mainly start the power supply circuit design ...

Schneider miniature circuit breakers are: A9 (iC65, iDPN, etc.), M9 (C65, DPN, C120, NG125, etc.), E9, OSMC32N/OSMC65H, etc Schneider molded case circuit breakers are: NSX, NSE, EZD, NSC, large plastic case NS Schneider structural circuit breakers have ...

1. After the inverter is repaired, the power number demand is corrected, don't forget Generally, an inverter corresponds to a power number (also known as the number of horsepower), for example, a 75 kilowatt inverter is set under heavy load, and 100 kilowatts is set under light load. In this way, the customer will not use it to present ...

(1) Protective button: a kind of button with a protective shell that can prevent the internal button parts from being mechanically damaged or people touching the live part, and its code is H. (2) Dynamic break button: Under normal conditions, the switch contact is a kind of button that is turned on. (3) Dynamic button: Under normal conditions, the ...

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 ...

In the process of connecting the line of the inverter, it is necessary to pay attention to the following aspects: 1. The power supply must be connected to the main circuit power terminal L1/R, L2/S, L3/T, if the power supply is connected to other terminals by mistake, the inverter will be damaged. 2. It is necessary for the grounding terminal to be well connected.

1. In principle, the ampere-second characteristics of the Schneider thermal relay should be as close as possible to or even coincide with the overload characteristics of the motor, or under the overload characteristics of the motor, and at the same time, the Schneider thermal relay should not be affected (not acting) at the moment of short-term overload and start of the motor. ...

(1) If the signal is controlled on a counter, first look at the logic that controls the reset, then the counter signal. Follow steps 2 to 5 above. (2) If Schneider PLC aborts in some places where the output is encouraged, generally in the middle of the situation, then look for the next step ...

1. Use the operation method of clicking the button: In addition to the direction of travel, 2 logic inputs are required to add a speed given, e.g. LI5 is assigned the acceleration function, and LI6 is assigned the deceleration function. Then pressing LI5 will make the speed given increase, and pressing LI6 will make the speed given speed decrease ...