Rockwell-automation 20B PowerFlex 70, PowerFlex 700 Reference Manual Uživatelský manuál stáhnout pdf (Strana 207)

Voltage Class

Rockwell Automation Publication PFLEX-RM001H-EN-P - June 2013 207

Voltage Class PowerFlex drives are sometimes referred to by voltage “class.” This class identifies

the general input voltage to the drive. This general voltage includes a range of

actual voltages. For example, a 400 Volt Class drive will have an input voltage

range of 380-480VAC. While the hardware remains the same for each class,

other variables, such as factory defaults, catalog number and power unit ratings

will change. In most cases, all drives within a voltage class can be reprogrammed

to another drive in the class by resetting the defaults to something other than

“factory” settings. The [Voltage Class] parameter can be used to reset a drive to a

different setup within the voltage class.

As an example, consider a 480 volt drive. This drive comes with factory default

values for 480V, 60 Hz with motor data defaulted for U.S. motors (HP rated,

1750 RPM, etc.) By setting the [Voltage Class] parameter to “low Voltage” (this

represents 400V in this case) the defaults are changed to 400V, 50 Hz settings

with motor data for European motors (kW rated, 1500 RPM, etc.). Refer to

Figure 61

Voltage Tolerance Refer to the Powerflex 70 Technical Data (publication 20A-TD001) or

PowerFlex 700 Technical Data (publication 20B-TD001

) for details.

Watts Loss Refer to the Powerflex 70 Technical Data (publication 20A-TD001) or

PowerFlex 700 Technical Data (publication 20B-TD001

) for Watts Loss

information.

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Rockwell-automation 20B PowerFlex 70, PowerFlex 700 Reference Manual Uživatelský manuál Strana 207