Figure 3-4. Resolveri - Garmin GNS 480 Installation Manaul

Post-Installation Configuration & Checkout
3.2.1.3 Resolver Interface Selection and Calibration
The Resolver Interface function lets you to select whether or not a resolver is installed, and allows an
installed resolver to be calibrated. While on the Ground Maintenance SETUP menu page, press the
RESOLVER line select key. Then press the top line select key to toggle between INSTALLED (for
installations with a resolver) or NOT INSTALLED (for installations without a resolver). The resolver
interface setup page is shown in Figure 3-4.
When a resolver is installed, calibrate it as follows:
1. Press the CAL line select key. The calibration page shown in Figure 3-5 will then be displayed. If
the CAL line select key is pressed when the resolver is set to NOT INSTALLED, it will
automatically be changed to INSTALLED.
2. Press the 10/30 line select key to toggle between 10 and 30 degrees for the calibration increment.
An increment of 30 degrees should be acceptable for most installations. However, if
resolver errors of more than two degrees are present following the calibration, the
calibration procedure should be repeated using the 10 degree increment (this will create a
more accurate calibration table but will require more time to perform the calibration).
3. Follow the instructions on the display for calibrating the resolver. If the GNS 480 will not accept
the calibration or advances to the next prompt when the MENU/ENTER key is pressed, there may
be a problem with the resolver interface.
The accuracy of the system is dependent on this calibration. Do not rush this step.
4. After successfully calibrating the resolver a green CALIBRATION PASSED message will be
displayed. After this message appears, rotate the resolver and ensure that the CURRENT
RESOLVER VALUE being displayed is within two degrees of the actual resolver setting.
3-6
Figure 3-4. Resolver Interface Setup Page
NOTE
NOTE
560-0982-01 Rev L GNS 480 (CNX80) Installation Manual