A6.1.3.9 Test Analog Sources; A6.1.3.10 Replacing The Input Power Fuse; A6.2 Datadiscrete Input Module - Rutter VDR-100G3 Installation Manual

A6.1.3.9 Test Analog Sources
1. Prior to connecting the inputs to the Analog device, the source voltage levels should be
verified:
Maximize the source level (i.e., place a 100% order to Stbd on the bow thrusters).
Measure the source level and make note of the Analog value at 100%.
2. Connect the inputs to the interface. Ensure that correct polarity is maintained so that a
positive order or response from the source will display a positive result on the VDR.
3. Make note of the digital value displayed in the Log Window for the particular source and
edit the configuration file to reflect this. These values are necessary for playback and
data recovery in the event of an incident.
Note! Refer to Appendix 6 – External Data Interface Modules for additional
information regarding Analog output string format.
4. Reduce the source level to approximately 75%; (ex., place a 100% order to Port on the
bow thrusters).
5. Repeat step 3.
6. Adjust the source level to the midpoint (i.e., place a 0% order to the bow thrusters).
7. Repeat step 3.
8. Repeat steps 1 through 7 for the remaining analog sources.
A6.1.3.10 Replacing the Input Power Fuse
To access the DataAnalog's circuit board:
Unplug the front panel input connectors;
Unscrew the two screws located on the front panel of the DataAnalog enclosure in order
to remove the panel;
Slide the circuit board out of the enclosure.
Refer to DataAnalog PCB above for fuse location. The input power fuse is a 500mA fast-blow
glass cartridge fuse, 5 X 20 mm size. When replacing the fuse, ensure the fuse clips are secured
to the new fuse. If in doubt, squeeze the clips prior to insertion of the new fuse to tighten the grip.
DataDiscrete Input Module
A6.2
The DataDiscrete interface monitors the status of 24 discrete input signals, and indicates
the on/off status of each channel via an NMEA-0183/IEC 61162 format data sentence.
For applications where more than 24 discrete signals need to be monitored, up to ten
DataDiscrete modules can be connected together, indicating the status of up to 240 input points
in a single data stream.
When discrete signals need to be monitored from multiple systems, the DataDiscrete inputs are
arranged in four (4) groups of six (6) with each group having a common return. This arrangement
provides the ability to simultaneously monitor voltages from four (4) separate systems while
maintaining electrical isolation between those systems. The DataDiscrete can detect both AC and
DC sources, and can be configured for high or low input voltages.
The DataDiscrete is certified by the Canadian Standards Association as meeting the rigorous
EMC and environmental resistance criteria defined by IEC 60945. The input and output ports
are opto-isolated and the power input is DC/DC isolated. This will ensure the safe, reliable
operation of the DataDiscrete and all devices connected to it. It is easily installed and will provide
dependable, uninterrupted service in the extreme environments typically found aboard vessels.
VDR-100G3/G3S Installation Manual
Appendix 6: External Interface Modules, Rev. 1.1
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06/10/2008