JAJSNS6A december 2022 – april 2023 MCF8315A
PRODUCTION DATA
The DC bus current limit feature can be used in applications to limit the current supplied by source without entering the constant current mode. The DC bus current limit feature can be enabled by setting BUS_CURRENT_LIMIT_ENABLE to 1b. The DC bus current limit threshold can be configured using BUS_CURRENT_LIMIT. The DC bus current limit limits the speed reference and a functional diagram is shown in Figure 7-52. Enabling this feature may restrict the speed of the motor so that current drawn from source is limited. The algorithm estimates the bus current using the measured phase currents, phase voltage and DC bus voltage. The current limit status is reported on BUS_CURRENT_LIMIT_STATUS.