Roll attitude, 3 wire synchro (11.8 vac ) – Honeywell MK VI User Manual
Page 272
Honeywell
MK VI MK VIII EGPWS Installation Design Guide
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External Validity Flag Connection:
None
AIC LSB:
0.03125 °C
AIC Status Mask:
00000000
External Validity Type:
None
6.1.6 ARINC 547/578-4 Low Level Glideslope Deviation with Discrete Valid
Data Item
Value
Signal Name:
Low Level Glideslope Deviation, DC Signal
AIC Algorithm:
DC Absolute
Signal Dynamic Range:
±
16 Dots
Signal Reasonable Range:
±
12 Dots
Signal Open Wire Threshold
–15 Dots
Reference Dynamic Range:
None
Reference Reasonable Range:
None
Scale:
GS Deviation (Dots) = 13.333333 Dots/VDC * Volts
in
– (Positive =
Fly Down) (75 mV per DOT, 0 Volts = 0 DOT)
NOTE: To be consistent with the ARINC 429 definition G/S scaling
inverts sign of input signal such that positive numbers are fly down.
Input Signal Connection:
(+) = J1-65 (above beam), (–) = J1-46 (below beam)
Input Reference Connection:
None
AIC Name:
D3 (DC3)
External Validity Flag Connection:
J1-11 (+28 VDC discrete)
AIC LSB:
0.00048828 Dots
AIC Status Mask:
0000200C
External Validity Type:
Discrete Validity
6.1.7 ARINC 547/578-4 Low Level Glideslope Deviation with Low Level Valid
Data Item
Value
Signal Name:
Low Level Glideslope Deviation, DC Signal
AIC Algorithm:
DC Absolute
Signal Dynamic Range:
±
16 Dots
Signal Reasonable Range:
±
12 Dots
Signal Open Wire Threshold
–15 Dots
Reference Dynamic Range:
None
Reference Reasonable Range:
None
Scale:
GS Deviation (Dots) = 13.333333 Dots/VDC * Volts
in
– (Positive =
Fly Down) (75 mV per DOT, 0 Volts = 0 DOT)
NOTE: To be consistent with the ARINC 429 definition G/S scaling
inverts sign of input signal such that positive numbers are fly down.
Input Signal Connection:
(+) = J1-65 (above beam), (–) = J1-46 (below beam)
Input Reference Connection:
None
AIC Name:
D3 (DC3)
External Validity Flag Connection:
(+) = J1-30, (–) = J1-10 (GS low level validity see 6.1.21)
AIC LSB:
0.00048828 Dots
AIC Status Mask:
0000200C
External Validity Type:
Low Level Validity
6.1.8 Roll Attitude, 3 Wire Synchro (11.8 VAC )
Data Item
Value
Signal Name:
Roll Attitude, 3 Wire Synchro
AIC Algorithm:
3 Wire Synchro (11.8 VAC)
Signal Dynamic Range:
±90° Synchro Angle (15.5 VAC max)
Signal Reasonable Range:
±80° Synchro Angle