Converter-fed operation up to 500 V +10 % line voltage

The standard insulation of 1LE1 motors is designed such that converter operation is possible at line voltages up to U_rated ? 500 V. Compliance with the following limit values is essential (voltage values are peak values): U_{phase-to-phase} ? 1500 V, U_{phase-to-ground} ? 1100 V, voltage rise times of t_s > 0.1 ?s. Operation of 1LE1 motors at higher voltage peaks (e.g. on converters with controlled input, e.g. AFE, ALM) requires motors with higher insulation resistance.
Please inquire in this case.

For motors with protruding connection cables (order codes R20, R21, R22, R23 and R24) please inquire in the case of converter operation.

During installation, the EMC guidelines must be complied with.

Note:

When motors are operated on SINAMICS converters additional losses occur which, depending on the admissible winding temperature, can make it necessary to reduce the torque. The admissible torque values can be obtained from the SIZER configuring tool. The lowest frequency specified there is 5 Hz. For stationary converter operation at lower frequencies, particularly in the case of frame sizes < 100, it is necessary to inquire at the Quotation Center.