Feature Configuration
ANCA Motion
DS619-0-00-0019 - Rev 0
109
10
Figure 10-9 ThetaFb moves in opposite direction to ThetaCmd. Likely cause: incorrect motor phase
sequence or inverted encoder feedback.
Step3.
If the DQ Alignment fails due to Error 405 (DQ Alignment Current Control Error), check following
logged data:
idCmd_1.dat and
idFb_1.dat
Otherwise go to Step 4.
Note that
idCmd_1.dat in [mA] is the d-axis current command (IDN 33069), and
idFb_1.dat in [mA] is the d-axis current feedback
Figure 4 below shows a plot of idCmd_1.dat and idFb_1.dat logged during a successful DQA FOI. It is
seen that idFb_1.dat follows idCmd_1.dat. When the drive triggers E405, idFb_1.dat does not follow
idCmd_1.dat. In this case, check the following:
DC bus powered.
Safe Torque OFF (STO) connector wired correctly.
Current loop properly tuned.
It is also recommended that IDN 33017 be logged together with idCmd_1.dat and idFb_1.dat. If IDN
33017 [2-14 %VDCB] is a value above 90% but idFB_1.dat is close to zero, then either the DC bus is
powered or the STO connector is not wired correctly.