Moog Crossbow GNAV540 - Manual (Page 60)

age 60 GNAV540 User Manual
7430‐0808‐01 Rev. B
Rotational Alignment
1. Ensure the unit is configured to use the
external magnetometer. Refer to Advanced on
page 56.
2. Ensure the leveling alignment of the
magnetometer has been configured (Leveling
ent Alignm
3. Click
, page 59).
Configuration and then select
Magnetometer Alignment from the drop
menu.
60 degree turn can b d within
Auto­Te
4. If the 3 e complete
120 seconds, check rminate.
5. Under Rotational Alignment, select the Start
button to begin the alignment. Follow the
er to instructions displayed in the screen. Ref
Figure 21.
6. Rotate the GNAV540 for 380 degrees of
rotation until the message is displayed that
alignment is complete.
Figure 24 External Magnetometer Alignment Dialog
7. After completing the rotation, data will be
displayed with the calibration parameters.
The X and Y offset values indicate how far the
magnetic field has been offset due to hard iron
affects from components surrounding the unit.
ayed, which
540 u it.
The soft iron ratio will also be displ
is the effect of soft iron on the GNAV n
8. The save the offset values, click the Apply
button.
The new configuration settings will be saved, but
they will not be implemented until either a soft
reset (via software—see Interactive Commands on
page 68) or a hard reset (recycle power of the
NAV540 unit) takes place. G
Figure 25 Magnetometer Alignment Values
P