Operating modes of output filters

Output filters can be operated with or without DC link connection. The recommended operation with DC link connection improves the filter effect between the phases and PE. This increases the device utilization.

Observe the following information:

• Operation with DC link connection
• Nominal filter current ≥ 65 A: Minimum clock frequency = 8 kHz, this must be set permanently
• Nominal filter current < 65 A: Minimum clock frequency can be set as desired
• Operation without DC link connection
• Maximum clock frequency = 8 kHz
• The maximum shielded motor cable length is 200 m.