Moog Crossbow GNAV540 - Manual (Page 59)

GNAV540 User Manual
7430‐0808‐01 Rev. B Page 59
After completing the rotation, data will be
displayed with the calibration values. The X and
Y offset values indicate how far the magnetic
Figure 22 Magnetometer Alignment Values
field has been shifted due to hard iron affects
from components surrounding the unit.
The soft iron ratio will also be displayed, which
nit. is the effect of soft iron on the GNAV540 u
Apply 6. The save the calibration values, click the
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 GNAV540
unit) takes place.
Aligning External Magnetometer
NOTE: re an ex al magnetometer, it By default, the GNAV540 uses the internal magnetometer. To use and configu tern
must be selected under the Advanced configuration tab. Refer to Advanced on . page 56
NOTE: Two configurations must be applied when using an external magnetometer: Leveling and Rotational.
Configuring the Leveling must be performed before the Rotational alignment.
Figure 23 Offset Alignment
Leveling Alignment
Leveling (roll and pitch) alignment is data that
must be manually entered: the offset of the
magnetometer related to the axes of the system in
which it is installed.
1. Ensure the unit is configured to use the
external magnetometer. Refer to Advanced on
page 56
External Mag Leveling Alignment
.
2. Under , enter
the Roll Offset and Pitch Offset in the data
fields, and then click the Set button.
NOTE: The features of the secondary leveling
interface are not available. (Refer to
Figure 24.)
To save the values in the EEPROM, click the Apply
button. Refer to Figure 25 on page 60.
The new configuration settings will be saved and
immediately implemented.