Inverter keyboard, inverter and inverter identification method

Abstract

The invention discloses a frequency converter keyboard, a frequency converter and a frequency converter identification method. The frequency converter identification method used for the frequency converter keyboard comprises that keyboard handshake data including keyboard type data is sent to the frequency converter; whether frequency converter handshake data including frequency converter model data is received from the frequency converter in preset time is determined; if the frequency converter handshake data is received, a model of the frequency converter is identified according to the frequency converter handshake data, and a corresponding function parameter configuration table is called to match the frequency converter; and if the frequency converter handshake data is not received, itis determined that the frequency converter keyboard does not support the frequency converter, and a corresponding prompt signal is emitted. Thus, the frequency converter is identified automatically, user parameters are set in corresponding to function codes, confusion of a debugging parameter is avoided, and parameters of the frequency converter are set normally when the parameters of the target frequency converter are debugged. When the model of the frequency converter cannot be identified, prompt is provided, a user can replace the frequency converter keyboard, and the time cost of debuggingcan be reduced.

Description

technical field [0001] The invention relates to the technical field of frequency converter applications, in particular to a frequency converter keyboard, a frequency converter and a frequency converter identification method. Background technique [0002] The frequency converter is a power control device that uses frequency conversion technology and microelectronics technology to control the AC motor by changing the frequency of the motor's working power supply. [0003] Usually, the frequency converter is equipped with a keyboard, and the general keyboard is divided into two types: LED and LCD. The user can view and set the function parameters of the frequency converter through the keyboard. However, the keyboard usually needs to be matched with a specific inverter, that is, the inverters of different manufacturers generally use their own designed keyboards, but there are often many inverter models produced by the same manufacturer, and there is often only one type of keyboa...

AI Technical Summary

Problems solved by technology

However, when the on-site commissioning personnel need to debug the parameters of the target inverter through the keyboard, there are situations where the inverter model is not clear and cannot be debugged normally.

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