ABB inverter is a well-known inverter brand developed, produced and sold by ABB Group. It is mainly used to control and adjust the speed of three-phase AC asynchronous motor, and occupies an important position in the inverter market due to its stable performance, rich combination functions, high-performance vector control technology, low speed and high torque output, good dynamic characteristics and super overload capacity. Xiamen Online Union Trade Co., Ltd. is mainly engaged in ACS series inverters: ACS510/ACS550/ACS800/ACS880 series widely used in the market.

Basic parameters and configuration points of ABB's 40 and 50 series PLC: ABB's 50 series PLC includes three subordinate series products, namely 40 series, 50 series and 90 series. 40 series PLC and 50 series PLC are identical in appearance and application, but 40 series products do not support CS31 and MODBUS communication. 40 series PLC and 50 series PLC are products of ABB in France, while 90 series PLC is products of ABB in Germany. The programming software of 90 series PLC can be compatible with 40 series PLC and 50 series PLC, otherwise it can only be partially compatible. With the launch of ABB's latest series PLC product AC500, the 90 series PLC has a tendency to be eliminated. Therefore, this article only introduces and discusses the 40 series PLC and 50 series PLC.

1. AC800M AC800M is an important component of Compact Products 800 series products. It is a modular controller based on rail installation, including CPU, communication module, power module and a series of accessories. AC800M is an important component of Compact Products 800 series products. It is a modular controller based on rail installation, including CPU, communication module, power module and a series of accessories. AC800M is an important component of Compact Products 800 series products. It is a modular controller based on rail installation, including CPU, communication module, power module and a series of accessories. It integrates multiple communication functions, can achieve all-round redundancy, and supports a wide range of I/O signals, including intrinsically safe signals in hazardous areas. The AC800M controller is programmed and configured through Compact Control Builder programming software, so that the AC800M controller can realize various control applications. The functional features of reusable code and library files also make it easier to configure and establish AC800M applications. From basic logic operation to advanced control or both, AC800M can handle a small number of I/O points to thousands of applications, from local installation to remote installation. One of the common features of the AC800M module is low energy consumption. The heat dissipation problem can be almost ignored and it can be easily and compactly installed. In most cases, AC800M controllers can be hermetically installed in cabinets without fans, openings, air filtration and other similar equipment. Therefore, many potential fault factors have been eliminated to ensure the high reliability of the controller.
   

2. AC800F AC800F provides users with a new automatic control scheme that integrates the idea of simple engineering into an open and advanced system structure: omnidirectional redundancy design can be freely selected: PROFIBUS, FOUNDATION Fieldbus or HART.

   The molded case circuit breaker can automatically cut off the current when the current exceeds the tripping setting. Plastic shell refers to the plastic insulator used as the shell of the device to isolate the metal parts between conductors and grounding. Molded case circuit breakers usually contain thermal magnetic tripping units, while large models of molded case circuit breakers will be equipped with solid-state tripping sensors. The tripping unit is divided into thermal magnetic tripping unit and electronic tripping unit. ABB Tmax molded case circuit breaker can be used not only in conventional industrial and construction fields, but also in special applications such as coal mines, railway tunnels, solar energy, ports, etc. ABB molded case circuit breaker has 7 models: T1, T2, T3, T4, T5, T6 and T7. The rated ultimate short-circuit breaking capacity (380/415V AC) is from 16kA to 200kA. The following types of circuit breakers can be provided, which are widely used in various applications: circuit breakers for AC and DC power distribution, circuit breakers for motor protection, molded case circuit breakers, also known as device type circuit breakers, all parts are sealed in the plastic housing, and the auxiliary contacts, under voltage releases, shunt releases, etc. are mostly modular. Due to its compact structure, the molded case circuit breaker can hardly be overhauled. Most of them are manually operated, and electric opening and closing can be selected for large capacity. Due to the application of electronic over-current release, molded case circuit breakers can also be divided into Class A and Class B. Class B has good three-stage protection characteristics. However, due to price factors, Class A products with thermal magnetic release have a higher market share. Molded case circuit breaker is used to install contacts, arc extinguishing chambers, releases, operating mechanisms, etc. in a plastic housing. Generally, maintenance is not considered. It is suitable for branch protection switches. There are two types of over-current releases: thermal magnetic release and electronic release. Generally, thermal magnetic molded case circuit breaker is a non selective circuit breaker. There are only two types of protection: overload long delay and short circuit instantaneous. Electronic molded case circuit breaker has overload long delay, short circuit short delay Short circuit instantaneous and ground fault protection functions. Some new products of electronic molded case circuit breakers also have the function of regional selective interlocking. Most molded case circuit breakers are manually operated, and some are equipped with motor operating mechanism.