Sanden SN3500, Руководство по установке

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Appendix A: Post-Installation Procedures
82005-IM-K Sandel SN3500 Installation Manual Page 7-19
MAX V Default settings reset when FCS is
selected from list below.
REF V Default settings reset when FCS is
selected from list below.
FCS Select from list Select the appropriate emulation from
the list. Press the SET soft key (CLR
button) to program.
HDG V/D and CRS V/D increase or decrease the gain of the course or heading error
relative to the lubber line, and normally match the volts/degree input of the associated
autopilot computer. These values default when the FCS selection is initially set, but
can be adjusted in-flight if necessary, in VFR conditions, as follows:
a) Engage the autopilot in HDG mode. After the aircraft is established on the
desired heading, move the heading bug knob a large amount and ensure that the
aircraft turns to the heading bug and rolls out normally without instability,
overshooting or undershooting to the desired heading. To correct for
overshooting or instability, reduce the HDG V/D setting. To correct for
undershooting, increase the HDG V/D setting.
b) Engage the autopilot in NAV mode and turn off the NAV receiver to provide a zero
course error. Repeat the tests and adjustments above using the course pointer
and adjust the CRS V/D setting as appropriate.
c) Use the REF V adjustment to center the heading and course rollout if not
precisely on the lubber line. This will rarely be required.
HDG DAT and CRS DAT allow the direction sensing to be reversed during
installation. Changing these settings is identical to reversing H/C on a synchro
control transformer.
The other settings on this page are not for installer adjustment except on advice of
the factory, service bulletin, or service information letter.
Note that the adjustments are shown in the left column of values. The right column
shows the default values for reference purposes.