Omron XTRADRIVE User Manual page 158

XtraDrive User Manual
Set the direction of electrical phase. This parameter used to find the electrical
phase in the AB encoder (other than Yaskawa); if you don't know the
direction, just set unknown direction and XtraDrive will find it automatically.
Pn191.0 Setting
0
1
2
As mentioned before, the new parameter settings become active only after
the driver has been restarted.
Chapter 5: Parameter Settings and Functions
Results
Unknown direction
UVW
UWV
5-90