Rockwell-automation SA3100 Distributed Power System Drv Config,Program Manual do Utilizador descarregar pdf (Página 144)

G-2

SA3100 Drive Configuration and Programming

Maximum RMS Current = Square Root of [(%Torque_Overload_Ratio/100)

(Rated_Motor_Current

- Iz

) + Iz

]

Iz is the magnetizing current component of the Power Module output stored in local

tunable variable STATOR_IZ_E1%. The value for this variable can be generated by

enabling tuning in register 100/1100, bit 1. Note that you must load a complete

parameter object file and UDC task to the UDC module before you can enable tuning.

If the calculation of the Maximum RMS Current is less than or equal to the Power

Module Rated Amps at the selected carrier frequency, the programmer may continue

entering the application data.

If the calculated Maximum RMS Current exceeds the Power Module Rated Amps,

refer to the actual motor data sheets to determine the actual current required by the

motor for the required Torque Overload Ratio. If the required current exceeds the

Maximum Power Module Current Rating, a higher rated Power Module must be used.

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Rockwell-automation SA3100 Distributed Power System Drv Config,Program Manual do Utilizador Página 144