You can adjust the conditions for an under voltage fault using VBUS.UVMODE in the WorkBench Terminal View:
VBUS.UVMODE = 1 (default)
The drive will not report an under voltage fault unless the drive is enabled and VBUS.VALUE falls below VBUS.UVFTHRESH
VBUS.UVMODE = 0
The drive will report an under voltage condition any time VBUS.VALUE falls below VBUS.UVFTHRESH.
When an under voltage fault occurs, the drive is disabled and issues the following alerts:
- WorkBench alert: 502 Bus Under Voltage
- Drive LED alert: Left LED displays [F], right LED displays [u-V].\
- Fault relay output turns on.
