RAIS
056357/B
General Troubleshooting Instructions
7-3
Diagnostic LEDs
As an aid in troubleshooting, a number of diagnostic LED indicators are
provided on the PCB. These indicate the presence of supply voltages,
activities on the serial data I/O lines and the current states of the status
output ports.
Table 7-3:
Diagnostic LEDs
LED
Colour
Indication
CR 4
green
relay status output “Spare”; on = relay attracted
CR 9
green
activity on RS-422 input
CR 12
green
system mode/status indication:
both flashing: power-up in progress
both off: normal operation mode
both on: error reading setup data
CR 13
green
CR 16
green
activity on RS-422 output 1
CR 17
green
activity on RS-422 output 2
CR 20
green
relay status output “Power Fail. / Gen. Alarm”;
on = relay attracted
CR 23
green
on-board +5 VDC power present
CR 28
green
on-board +15 VDC power present
CR 29
green
on-board –15 VDC power present
CR 33
red
reversed polarity 24 VDC supply power
CR 34
green
24 VDC supply power present
Содержание Rudder Angle Indicator System
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