JRC JHS-183 Instruction Manual page 91

b) Details of NSK Unit setting
Each item's detail are shown below
2. ALARM
Current alarm of NSK UNIT
Indication
OK
SYNCIRQ ERR
SYNCWIRE ERR
STEPIRQ ERR
STEPWIRE ERR
PROG.MEM.ERR
3. TYPE
Displays the type of gyrocompass
Indication
STEP
SYNC
4. RATIO
Displays the rotation ratio
Indication
36X
90X
180X
360X
5. DIRECTION
Displays the direction of rotation
Indication
REV
NORM
6. OUTPUT TIMING
Displays the renewal time of heading value
Indication
RESERV
1S
100MS
50MS
7. SIMULATOR
Displays the operation mode
Indication
TEST
NORM
8. ERR TIMING
Displays the alarm detecting time
Indication
5S
0.2S
Description
Normal
Connection error in case sync type selected
（e.g. breaking of wire）
Connection error in case step type selected
（e.g. breaking of wire）
Operation error
Description
Step signal
Sync signal
Description
Rotation ratio
Description
Reversal（a left-handed rotation）
Normal（a right-handed rotation）
Description
Reserved
Renew the heading every 1 second
Renew the heading every 0.1 seconds
Renew the heading every 0.05 seconds
Description
Operation check mode.
The heading value shows 0.0 always.
Normal operation mode（displayed normally）
Description
Detect the alarm every 5 seconds
Detect the alarm every 0.2 seconds
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