DAC GDC31 - Phase Selection

Equipment Installation Manual,
GDC31 Roll Steering Converter
Phase Selection
The GDC31 will accommodate steering signals that are in phase with the reference or out of phase with
the reference. For DC heading error signals, in-phase means a positive error signal produces a right turn,
a negative error signal produces a left turn. Determine the correct phasing from the autopilot maintenance
data then wire P1-13 accordingly.
If the phasing is incorrectly wired, the autopilot will turn the opposite direction when coupled to the
GDC31 Roll Steering Converter.
Phase P1-13
IN Phase with Reference Open
OUT of Phase with Reference Ground
Table 3
Phase Selection
1049-2510-01 G.doc
1049-2510-01
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