Omron SYSDRIVE 3G3MV SERIES User Manual page 167

Advanced Operation
Set Values
Value
0 Low carrier frequency at low speed disabled.
1 Low carrier frequency at low speed enabled.
• Normally set n175 to 0 (except for 5.5- and 7.5-kW Inverters).
• When the output frequency is 5 Hz or less and the output current rate is 110% or more, the carrier
frequency will be automatically reduced to 2.5 kHz with n175 set to 1. If the load is heavy at low speed,
the Inverter will withstand higher overcurrent by suppressing the heat radiation of the Inverter caused
by the carrier frequency.
• This function is enabled with 2, 3, or 4 set in n080 for carrier frequency.
Description
Chapter 6
6-25