The WASSP Sensor Box should be installed taking the following into consideration:
»WASSP Sensor Box should be as close to the vessels centre of motion as possible
(usually very close to the vessel centre of gravity). This will give optimum motion
sensor performance which is essential to achieve acceptable WASSP performance
»Cabling from the GPS Compass and WASSP system needs to be accessible.
»Flat rigid mounting location is required for optimum motion sensor performance.
Pitch accuracy should be +/- 2 degrees.
»WASSP Sensor Box needs to be mounted accurately in fore/aft vessel orientation as
per the arrow on the box. Angular accuracy should be +/- 1 degree.
»Area needs to have space for connectors.
Once a suitable location and fixing plate is identified the WASSP Sensor Box should be
mounted using the supplied mounting pieces and instructions supplied with the box.
NOTE: WASSP Sensor Box needs to be mounted aligned fore/aft as per the
arrow on the box. Tolerances are +/- 1 degree fore/aft and +/- 2 degrees pitch.
For operation, the following connections are required:
»Power
»WASSP Cable to DRX or WASSP PC
»Satellite Compass
»Spatial IMU - Internal to WASSP Sensor Box
3.2.1. Satellite Compass
To connect the Satellite Compass Connection connect the cable to the internal terminal
block as per the instructions below.
1. Strip 50mm of the outer insulation from the Hemisphere cable exposing the
coloured cables.
2. Cut o unused cables, see “Appendix A.3 Satellite Compass Terminal Block” on
page 22 for required cable.
3. Strip back 5mm of insulation from all the remaining wires and twist them (tin them
if practical).
4. Open the connection box by unlatching the 4 screws on top of the box.
To open the connection box,
twist all 4 screws half a rotation
anti-clockwise.
Figure 9. WASSP Sensor Box Alignment
3.2. WASSP SENSOR BOX CONNECTION
Refer to “1 Interconnection diagram” on page 6 for system configuration.
For sensor configuration, the following connections are required:
»Power
»Configuration cable to a PC, for Spatial configuration (See “4 Sensor Configuration”
on page 13).
»Spatial IMU - Internal to WASSP Sensor Box
NOTE: If Hemisphere Satellite Compass requires configuration this can also be
connected
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5. Insert the Satellite Compass cable into the box through the gland. Insert the wires
into the terminal block seen below and then tighten the terminal screws. See
When the cable connection is made, tighten the gland and make sure the cable is
secured.
3.2.2. Spatial IMU Connection
The Spatial IMU is mounted internally to the WASSP Sensor Box. If the Spatial IMU needs
to be mounted external to the WASSP Sensor Box, follow instructions in “Appendix B -
Spatial external connection” on page 25.
See “Appendix A.4 Spatial Terminal Block” on page 23 for Spatial Pin Out.
4 SENSOR CONFIGURATION
4.1. SATELLITE COMPASS CONFIGURATION
GPS Compasses supported currently include:
»Hemisphere V103; Supplied preconfigured as part of the Widescan Sensor Package
4.1.1. Hemisphere V103
Hemisphere V103 will be supplied preconfigured.
»Mount fore/aft for true heading
»Port B (RS422-A): 38400 Baud
• GGA 20Hz
• VTG 2Hz
• ZDA 1Hz
• HDT 20Hz
»PPS Out
4.2. SPATIAL CONFIGURATION
»Port A (RS232): 38400 Baud
• $JBIN, 1, 20
• $JASC, GPHDT, 20
Spatial IMU will be supplied preconfigured. Other than External Oset.
»Auxiliary baud rate; 38400 Baud
»GPIO
• Aux Tx Function: TSS1
• Aux RX Function: Hemisphere GNSS Input
• GPIO1; 1PPS Input
»GPIO Output
• TSS Auxiliary output rate 50Hz
»Filters
• Vehicle Profile = SHIP
• Internal GNSS = OFF
• Magnetic Heading Enabled = OFF
• Atmospheric Altitude Enabled = OFF
• Velocity Heading Enabled = OFF
• Reversing Detection Enabled = OFF
• Motion Analysis = OFF
• Automatic Magnetic Calibration = OFF
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For sensor configuration on WASSP PC refer to the WMB-X230/WMB-3250 Installation
Manual.
Connect the WASSP Cable from the DRX connector on the WASSP Sensor Box to the
WASSP PC serial ports as per “Figure 2. Interconnection Diagram WMB-X230/WMB-3250
Option” on page 6.
Below shows configuration using the Hemisphere V103 Satellite Compass.
1. Configure the COM ports using the Serial Transfer Task.
NOTE: Lag for Hemisphere V103 is not required for position if PPS is used,
other Satellite Compass Lags will need to be calculated and applied.
4. Configure PPS
»PPS Port; RS422-A
»Trigger Edge; Rising Edge
NOTE: If PPS is not supported configure POSITION LAG as per CONFIGURE
DATA SETUP above.
2. Verify the data using the monitor option above.
3. Setup the sensors on the WMB-X230/WMB-3250 application. Example below is
for the WMB-3250.
Motion;
Sentence TSS,
Port Number 2,
Time Lag 0.001
Position;
Sentence GGA,
Port Number 1,
Time Lag as
calculated
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The Spatial IMU is recommended to be installed mounted in the WASSP Sensor Box.
These instructions are only applicable if the Spatial IMU needs to be mounted external to
the WASSP Sensor Box.
1. Unlatch the four screws
on the top of the box.
To open the connection
box, twist all 4 screws half
a rotation anti-clockwise.
2. Remove the Spatial
IMU connection to the
terminal block.
3. Remove the mounting plate.
4. Remove the Spatial IMU from the mounting plate.
5. Run the cable through a gland into the WASSP Sensor Box.
For WASSP PC - Referenced to PC COM Ports.
Convertor connected to COM 1.
PINFunction
1COM2 (Pin 2), RS-232 Rx
2NC
3RS-422 to RS-232 Converter (Pin 4), Rx-
4COM2 (Pin 8), RS-232 CTS
5RS-422 to RS-232 Converter (Pin 3), Rx+
6NC
7COM2 (Pin 5), RS-232 GND
8COM2 (Pin 5), RS-232 GND
9COM2 (Pin 5), RS-232 GND
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6. Insert the wires into the Spatial IMU terminal block and tighten the terminal
screws. See “Appendix A.4 Spatial Terminal Block” on page 23 for Spatial IMU
terminal pin out.
7. Spatial IMU should be mounted taking the following into consideration:
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»Spatial should be as close to the vessels centre of
motion as possible (usually very close to the vessel
centre of gravity). This will give optimum motion
sensor performance which is essential to achieve
expected WASSP performance.
»Cabling to the WASSP Sensor Box needs to be
accessible.
»Flat rigid mounting location is required for optimum
motion sensor performance. Pitch accuracy should be
+/- 2 degrees.
»Spatial IMU needs to be mounted accurately in fore/
aft oriented in X direction. Angular accuracy should be
+/- 1 degree.
APPENDIX B.1 WASSP SENSOR BOX DIMENSIONS
X
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