Frequency converter kit and frequency converter

Abstract

Frequency converter kit (100), comprising: - comprising a basic module (10): - a basic module interface (11), - a power electronics (12) for controlling at least one electric motor (200), - a base module microprocessor (13) configured to control the operation of the base module (10) and to provide a basic set of functions, and - a case (14), and - comprising an expansion module (30) to be arranged outside the housing (14): - an expansion module microprocessor (31), and - an expansion module interface (32) which can be coupled to the base module interface (11) in such a way that the expansion module microprocessor (31) together with the base module microprocessor (13) provides an extended range of functions in relation to the basic range of functions.

Description

[0001] The invention is based on the objective of providing a frequency converter kit and a frequency converter that have a flexible range of functions.

[0002] The frequency converter kit includes a base module. The base module comprises: a base module interface, power electronics for controlling at least one electric motor, for example comprising one or more inverters, a base module microprocessor designed to control the operation of the base module and to provide a basic range of functions, and a housing in which the aforementioned components are arranged.

[0003] The frequency converter kit includes an expansion module that is mounted outside the housing. The expansion module comprises an expansion module microprocessor and an expansion module interface that can be coupled to the base module interface in such a way that the expansion module microprocessor, together with the base module microprocessor, provides an extended range of functions beyond the basic functionality. The base module interface and the expansion module interface can, for example, be designed as a communication bus typical for microprocessors, such as a so-called Media Independent Interface (MII), etc.

[0004] In one embodiment, the expansion module has an internal memory of any shape and / or a storage medium interface for connecting an external storage medium, for example in the form of an SD card.

[0005] In one embodiment, the expansion module has a fieldbus interface by means of which the expansion module can be connected to a fieldbus, for example an EtherCAT fieldbus, etc. The expansion module can further have a separate diagnostic interface for direct communication with the base unit and / or other devices.

[0006] In one embodiment, the basic functionality provides at least one servo inverter. In other words, the basic module alone constitutes a conventional servo inverter that can, for example, control one or two axes. The extended functionality provides at least one programmable logic controller (PLC) together with the servo inverter. In other words, a basic module coupled with an extension module constitutes at least one programmable logic controller with a servo inverter.

[0007] In one embodiment, the base module interface and the expansion module interface are both Ethernet interfaces.

[0008] The frequency converter according to the invention is composed of a frequency converter kit according to one of the preceding claims. In a first variant, the frequency converter consists exclusively of the basic module, and in a second variant, of the basic module and the expansion module.

[0009] The invention is described in detail below with reference to the drawing. The drawing shows: Fig. 1. A block diagram of a frequency converter kit, shown in schematic form.

[0010] Referring to Fig.1 The frequency converter kit 100 has a base module 10. The base module 10 has a base module interface 11, power electronics 12 for controlling at least one electric motor 200, a base module microprocessor 13 which is designed to control the operation of the base module and to provide a basic range of functions, and a housing 14.

[0011] The frequency converter kit 100 further includes an expansion module 30. The expansion module 30 is to be arranged outside the housing 14 and comprises: an expansion module microprocessor 31 and an expansion module interface 32, which can be coupled to the base module interface 11 in such a way that the expansion module microprocessor 31, together with the base module microprocessor 13, provides an extended range of functions in relation to the basic range of functions.

[0012] The expansion module 30 also features a storage medium interface 36 for connecting an external storage medium.

[0013] The expansion module 30 also has a fieldbus interface 33, by means of which the expansion module 30 can be connected to a fieldbus.

[0014] The basic functionality corresponds to that of at least one servo inverter, and the extended functionality corresponds to that of at least one programmable logic controller plus that of a servo inverter.

[0015] The basic module interface 11 and the expansion module interface 32 are both Ethernet interfaces.

[0016] The expansion module 30 can have a supply voltage connection 34 for connecting a supply voltage, for example 24 V DC. In this case, the expansion module 30 can have a supply voltage interface 35 which can be coupled to a corresponding supply voltage interface 15 of the base module 10, so that the base module 10 can be supplied with operating energy via the expansion module 30.

[0017] A frequency converter according to the invention is composed of a frequency converter kit described above.

Claims

[1] Frequency converter kit (100), comprising: - comprising a basic module (10): - a basic module interface (11), - a power electronics (12) for controlling at least one electric motor (200), - a base module microprocessor (13) configured to control the operation of the base module (10) and to provide a basic set of functions, and - a case (14), and - comprising an expansion module (30) to be arranged outside the housing (14): - an expansion module microprocessor (31), and - an expansion module interface (32) which can be coupled to the base module interface (11) in such a way that the expansion module microprocessor (31) together with the base module microprocessor (13) provides an extended range of functions in relation to the basic range of functions. [2] Frequency converter kit (100) according to claim 1, characterized by , that - the expansion module (30) has a storage medium interface (36) for connecting an external storage medium. [3] Frequency converter kit (100) according to one of the preceding claims, characterized by , that - the expansion module (30) has a fieldbus interface (33) by means of which the expansion module (30) can be connected to a fieldbus. [4] Frequency converter kit (100) according to any one of the preceding claims, characterized by , that - the basic range of functions provides at least one servo inverter, and / or - the extended range of functions includes at least one programmable logic controller. [5] Frequency converter kit (100) according to any one of the preceding claims, characterized by , that - the basic module interface (11) and the expansion module interface (32) are Ethernet interfaces. [6] Frequency converters, characterized by , that - the frequency converter is composed of a frequency converter kit (100) according to one of the preceding claims.

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