Simrad SAL R1a Easy Tank - 5.2 Possible Faults and Actions; 6. Intermittent Speed Indication; 7. Continuous No Speed Indication; 8. No Speed (NO NMEA;Err)

SAL R1a Easy Tank User Manual No. 703852
703852A04, SIMRAD SAL R1a Easy Tank User Manual.docx 25 (25)
6. R1a indicates speed only intermittently and between that, three dashes (- - -)
in SD4-3 Speed Window
Note! SAL R1a is primarily a longitudinal speed measuring system, thus this
behaviour may be normal due to e.g. sharp/hard turning manoeuvring.
Reason
Action
The TRU is not aligned longitudinal or
not in working position.
Check the TRU according to TRU
Mounting Inspection described below.
TRU cable shield not connected in R1a
cabinet gland may cause disturbances.
Check that the TRU cable shield is firmly
connected in the ELC cable gland.
The TRU sensor surface is covered by
algae/marine growth.
Check the TRU according to TRU Sensor
Surface Inspection described below.
7. R1a indicates continuously no speed and only three lines (- - -) in SD4-3
Speed Window
Reason
Action
The TRU is not aligned longitudinal or
not in working position.
Check the TRU according to TRU
Mounting Inspection described below.
The TRU sensor surface is covered by
algae/marine growth.
Check the TRU according to TRU Sensor
Surface Inspection described below.
8. R1a indicates no speed at all and the SD4-3 shows NO NMEA in Mode
Window and Err in the Speed Window
Reason
Action
The speed log ELC has lost power.
Check that ELC is in operation.
The log distribution unit has lost power.
Check that NMEA Unit(s) (LPU2) is in
operation.
The serial connection is broken.
Check cables and terminal connections.
5.3 Jumper settings
The jumper settings shall be checked when the ELC is installed. Names refer to Pcb
screen print. The jumpers shall be kept in default positions for normal operation.
Default positions are shown in bold:
Jumper
Position
Function
RESET
CONNECTED
OPEN
Normal operation
CPU will reset until jumper is restored
FACTORY
CONNECTED
OPEN
Normal operation
If open during restart all settable menu parameters
will be restored to default
PROGRAM
CONNECTED
OPEN
Normal operation
Not to be used
TEST
CONNECTED
OPEN
Normal operation
Not to be used without special test equipment
Before setting the ELC to power, check that also other units powered and controlled from
the ELC are properly connected.