西門子840D主板6FC5357-0BB33-0AE1

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西門子840D主板6FC5357-0BB33-0AE1

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Step by step to more efficiency

One of the core objectives of the European Union is a sustainable power industry. In industrial plants today, around 70 % of the power demand is from electrically driven systems. This high percentage contains huge potential for saving energy in electrical drives. For that reason, the European Union introduced minimum requirements for the energy efficiency of electric motors in the form of a statutory motor regulation as early as 2011.

However, measures aimed solely at the motor are not enough to achieve the mandatory energy-saving targets. The European legislation fills this gap with the standard series EN 50598 and extends the focus from individual drive components to entire drive systems, even enabling consideration of specific use cases.

The European standard series EN 50598 defines the ecodesign requirements for drive systems in the low-voltage range with an electrically driven machine. It consists of definitions for energy efficiency (parts 1 and 2) and an ecobalance calculation (part 3).
To take account of the different use cases, consideration of eight application-relevant operating points has been introduced as mandatory for the first time. Determination of loss values at these eight points and definition of efficiency classes are laid down by the standard in a uniform way. This enables data relevant to operation, such as application-specific load profiles, to now be taken into account more easily in the energy efficiency analysis.

The standard is especially important for variable-speed drives of the following types:

• for AC/AC converters without energy recovery functionality
• for motors with integrated converters
• for supply voltages of 100 V to 1000 V
• for powers of 0.12 kW to 1000 kW

To cover all applications of driven machines, the new standard defines operating points in full-load and partial-load operation, at which the losses of the motor and drive systems have to be determined. Based on the loss data at the operating points in partial-load operation, variable-speed drives can be explicitly considered in more detail. This makes their advantages especially clear.

Duty cycles for different driven machines

Moreover, frequency converters and motor systems are classified in efficiency classes, which permit an initial rough estimate of the potential saving. Definition of reference systems is a key aspect of this because they provide standard reference values. The positioning of these reference systems defines the efficiency class. The relative distance from the reference system can be used as an absolute measure of the efficiency at the operating point in question.

Advantages of the detailed loss consideration of EN 50598 over the previous consideration of efficiencies and maximum loss values

For motors, the efficiency consideration was previously only defined for operation without a converter at 50/60 Hz. It provides a good way of comparing the energy efficiency of motors from different manufacturers for this use case.

The more detailed loss analysis of EN 50598, on the other hand, is aimed at speed-controlled operation and therefore now also includes motors especially designed for converter operation in the energy analysis. These were previously not covered by the applicable standards.
Moreover, a loss analysis over the entire setting and load range of the motor is possible. This is done in accordance with the standard EN 50598 with typical values.

For holistic consideration, it is essential to include all the relevant components of a drive system. The EN 50598 standard defines this in detail. The standardized expression of power loss data as a percentage makes comparison considerably easier and more transparent.

The method also makes it possible to consider a motor that produces a holding torque at speed zero, for example. In this case, the efficiency is zero, but a power loss from current producing magnetization and holding torque does occur. In summary, the key advantage of standard EN 50598 is the ability to perform the energy analysis of an electrical drive system based on standardized load profiles in all operating ranges due to uniform general conditions. This provides the user with complete transparency irrespective of the manufacturer.

Establishing efficiency classes of frequency converters (Complete Drive Modules CDM)

To avoid overmodulation and to ensure comparability between makes, which cannot be achieved otherwise, the efficiency classes of CDMs refer to the 90/100 operating point (90 % motor stator frequency, 100 % torque current).

Standard EN 50598?2 defines the relative losses of a CDM in efficiency classes IE0 to IE2. With reference to the value of a CDM of efficiency class IE1 (reference converter), a CDM of efficiency class IE2 has 25 % lower losses and a CDM of efficiency class IE0 has 25 % higher losses.

Operating points for CDMs

 6FC5357-0BA10-0AE0       6FC5357-0BA11-0AE0    NCU控制主板

 6FC5357-0BA11-1AE0       6FC5357-0BA20-0AE0    NCU控制主板
 6FC5357-0BA20-1AE0       6FC5357-0BA20-1AE0    NCU控制主板
 6FC5357-0BA21-0AE0       6FC5357-0BA21-1AE0    NCU控制主板
 6FC5357-0BA21-1AE1       6FC5357-0BA24-0AE0    NCU控制主板
 6FC5357-0BA24-1AE0       6FC5357-0BA30-0AE0    NCU控制主板
 6FC5357-0BA31-0AE0       6FC5357-0BA31-1AE0    NCU控制主板
 6FC5357-0BA32-0AE1       6FC5357-0BA32-1AE0    NCU控制主板
 6FC5357-0BA32-1AE2       6FC5357-0BA33-0AE0    NCU控制主板
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 6FC5357-0BB11-0AE0       6FC5357-0BB11-0AE1    NCU控制主板
 6FC5357-0BB12-0AE0       6FC5357-0BB13-0AA0    NCU控制主板
 6FC5357-0BB13-0AA1       6FC5357-0BB14-0AA0    NCU控制主板
 6FC5357-0BB15-0AA0       6FC5357-0BB21-0AE0    NCU控制主板
 6FC5357-0BB21-0AE1       6FC5357-0BB22-0AE0    NCU控制主板
 6FC5357-0BB23-0AA0       6FC5357-0BB23-0AA1    NCU控制主板
 6FC5357-0BB23-0AE0       6FC5357-0BB24-0AA0    NCU控制主板
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 6FC5357-0BB25-0AA0       6FC5357-0BB31-0AE0    NCU控制主板
 6FC5357-0BB33-0AA0       6FC5357-0BB33-0AA1    NCU控制主板
 6FC5357-0BB33-0AE0       6FC5357-0BB33-0AE1    NCU控制主板
 6FC5357-0BB33-0AE2       6FC5357-0BB33-0AE3    NCU控制主板
 6FC5357-0BB34-0AA0       6FC5357-0BB34-0AE0    NCU控制主板
 6FC5357-0BB34-0AE1       6FC5357-0BB35-0AA0    NCU控制主板
 6FC5357-0BB35-0AE0       6FC5357-0BB52-0AE0    NCU控制主板
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 6FC5357-0BB53-0AE1       6FC5357-0BH00-0XE0    NCU控制主板
 6FC5357-0BH00-0XE1       6FC5357-0BY20-0AE0    NCU控制主板
 6FC5357-0BY20-1AE0       6FC5357-0BY31-0AE0    NCU控制主板
 6FC5357-0BY21-1AE0       6FC5357-0BY21-1AE1    NCU控制主板
 6FC5357-0BY24-0AE0       6FC5357-0BY24-1AE0    NCU控制主板
 6FC5357-0BY30-0AE0       6FC5357-0BY31-0AE0    NCU控制主板
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 6FC5357-0BY31-1AE0       6FC5357-0BY32-0AE1    NCU控制主板
 6FC5357-0BY32-1AE0       6FC5357-0BY33-0AE0    NCU控制主板
 6FC5357-0BY33-1AE0       6FC5370-0AA00-1AA1    NCU控制主板

 德國西門子NCU571.3  【現(xiàn)貨】 6FC5357-0BB11-0AE1  *
 德國西門子NCU571.3  【現(xiàn)貨】 6FC5357-0BB13-0AA0  *
 德國西門子NCU571.3  【現(xiàn)貨】 6FC5357-0BB13-0AA1  *
 德國西門子NCU571.4  【現(xiàn)貨】 6FC5357-0BB14-0AA0  *
 德國西門子NCU571.4  【現(xiàn)貨】 6FC5357-0BB12-0AE0  *
 德國西門子NCU571.5  【現(xiàn)貨】 6FC5357-0BB15-0AA0  *
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 德國西門子NCU572.2  【現(xiàn)貨】 6FC5357-0BB21-0AE0  *
 德國西門子NCU572.2  【現(xiàn)貨】 6FC5357-0BB21-0AE1  *
 德國西門子NCU572.2  【現(xiàn)貨】 6FC5357-0BB22-0AE0  *
 德國西門子NCU572.3  【現(xiàn)貨】 6FC5357-0BB22-0AE0  *
 德國西門子NCU572.3  【現(xiàn)貨】 6FC5357-0BB23-0AA0  *
 德國西門子NCU572.3  【現(xiàn)貨】 6FC5357-0BB23-0AA1  *
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 德國西門子NCU572.4  【現(xiàn)貨】 6FC5357-0BB23-0AE0  *
 德國西門子NCU572.4  【現(xiàn)貨】 6FC5357-0BB24-0AA0  *
 德國西門子NCU572.5  【現(xiàn)貨】 6FC5357-0BB25-0AA0  *
 德國西門子NCU573.2  【現(xiàn)貨】 6FC5357-0BB31-0AE0  *
 德國西門子NCU573.2  【現(xiàn)貨】 6FC5357-0BB33-0AE0  *
 德國西門子NCU573.2  【現(xiàn)貨】 6FC5357-0BB33-0AE1  *
 德國西門子NCU573.2  【現(xiàn)貨】 6FC5357-0BB53-0AE1  *