NORTHROP GRUMMAN naviguide 4000, User, Installation And Service Manual

Page: 74 / 252

056336 Rev. AA NAVIGUIDE 4000
Page 3–4 3.2: System Alarms
3.2.2 List of Alarm Codes and Messages
The table below lists the alarm messages which may occur in a manual steering
system. Additional alarms may occur in
SteerMaster™ systems, in conjunction
with the NAVIPILOT 4000 heading control system. For a complete list of all possi-
ble alarms, refer to the NAVIPILOT 4000 Heading Control System manual, Sperry
USA document JA19-8039x.
Code Alarm Message Comments Corrective Action
100 CONTROL CHECKSUM
FAULT
Re-enter SCU configura-
tion settings.
101 INVALID MAC
ADDRESS
EPROM Failure in SCU
or CDU. Contact Sperry Marine
102 CONFIG DATABASE
INIT FAULT
Re-enter SCU configura-
tion settings.
103 DISPLAY FAULT FOR
TEST
105 CONTROLLING STA-
TION LOST
Steering station in con-
trol not responding. Select new steering
device.
106 STATION NOT
ACCEPTED CONTROL
Desired steering station
refused control. Select new steering
device.
118 PROM CHECKSUM
FAULT
119 RAM READ WRITE
FAULT
120 NVRAM CHECKSUM
FAULT
Re-enter SCU configura-
tion settings.
121 CONFIGURATION
STORAGE
Re-enter SCU configura-
tion settings.
122 CONTROL STORAGE Re-enter SCU configura-
tion settings.
123 SERIAL EEPROM
STORAGE
124 HELM WHEEL NOT
ZEROED
„Helm Advisor“ alarm.
Given when helm advi-
sor function is enabled
and helm wheel has
been moved from mid-
ship’s position at least 5
degrees for 10 seconds. Return helm wheel to
midship’s position.
125 HELM UNIT NOT CALI-
BRATED
Calibrate helm unit.
126 RRB NOT CALIBRATED Calibrate rudder angle
feedback unit.
127 EXTERNAL UNIT NOT
CALIBRATED
Calibrate the external
unit.