Siemens inverter parameters problem - Database & Sql Blog Articles

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In the parameter group of Siemens M440 inverter, many parameters are followed by a bracket, such as: P0305 [3], r0051 [2], r0774 [2], etc. What do the numbers in the brackets mean? What is the number in parentheses? A: Usually only one motor is connected to one inverter. What if one inverter has different motors? This brings up the concept of different parameter sets. Such a controller design concept has been applied as early as DC drive. Now the inverter controllers of various brands are only different in the number of parameter sets, but they are all considered. It is only found in high-end models.
When is the case where one inverter is used with multiple motors?
As long as 1) the two motors do not work at the same time (such as alternating work), 2) and the power, voltage and other parameters of the two motors are within the range applicable to the inverter.
Such an application makes the control of the frequency converter more reasonable and more cost-effective.
The value in parentheses is the parameter group number to which it belongs. The parameter group can be called according to the condition, that is, different parameter sets different parameter group parameters as the current system application value.

The format of "Parameter Description" is as follows:
1.Parnumber - The parameter number refers to the number of the relevant parameter. The parameter number is represented by a 4-digit number from 0000 to 9999. The parameter number with the prefix "r" indicates that the parameter is a "read-only" parameter, which shows a specific parameter value, but cannot directly change its parameter value by specifying a different value for the parameter number (if this is the case) , the "Unit", "Min", "Def", and "Max" entries in the "Parameter Description" header are marked with a dash "-").
All other parameters are prefixed with "P". The values ​​of these parameters can be changed directly within the range indicated by the "Min" and "Max" settings in the header.
[indexed index] indicates that the parameter is an indexing parameter and specifies the number of available indexings.
2.Parametername - The parameter name refers to the name of the relevant parameter.
Some parameter names have the abbreviated prefixes BI, BO, CI, and CO followed by a colon (:).
These abbreviations have the following meanings:
BI=switch connector input, ie the source of the parameter selection of a binary signal
BO = switch connector output, ie the parameter is connected as a digital signal
CI = connector input, ie the parameter selects the source of an analog signal

CO = connector output, ie the parameter is connected as an analog signal

CO/BO = connector / switching connector output, ie parameter as an analog signal and / or as a binary signal connection To use the BICO function, you must access the entire parameter list. At this access level, many new parameter settings can be implemented, including BICO functionality. The BICO function is a different way of setting and combining more flexible input and output functions. In most cases, BICO functionality can be used with simple user access level 2 settings.
The BICO system allows programming of complex functions. Boolean logic and mathematical relationships can be established between inputs (digital, analog, serial input, etc.) and outputs (inverter current, frequency, analog output, relay output, etc.).

12. Level-user access level refers to the user access level. There are 4 access levels: Standard, Extended, Expert, and Service. The number of parameters that appear in each function group depends on the access level set in P0003 (User Access Level).