381298/C
141
Related topics
List of SN90 cables, page 134
AC mains power cable using IEC C13 inline socket, page 160
Grounding cable, page 161
Connecting AC mains and ground to the display
A display is a required part of the SN90 Purse Seine and Trawl Sonar. The display
must be connected to AC mains, and it must be – if specified by the manufacturer –
properly grounded.
Prerequisites
You must be equipped with a standard set of tools. This tool set must comprise
the normal tools for cable installation, such as different screwdriver types, pliers, a
cable stripper and a soldering iron. Each tool must be provided in various sizes. We
recommend that all tools are demagnetized to protect your equipment. Depending on the
tasks at hand, additional tools may be required.
Context
The mains voltage for the display is defined by the manufacturer. Refer to the relevant
documentation or the identification plate on the display cabinet. In many cases the
display will be rated for 115 or 230 VAC, and it will automatically sense the current
supply voltage.
The display is normally connected to the Uninterruptible Power Supply for AC mains.
Two cables are used.
• AC mains cable: This cable is provided with the SN90 delivery.
• Ground cable: This cable must be provided by the installation shipyard.
Procedure
1
Locate the power input and the ground connector on the rear side of your display.
A ground connector is only provided if the display manufacturer has chosen to
implement it.
2
Verify that the display is rated for your AC mains power.
3
Connect the AC mains cable from the display to the bulkhead mains socket or the
Uninterruptible Power Supply (UPS).
4
If specified in the relevant installation manual, connect the grounding cable from
the nearest grounding point to the relevant contact point or socket on the rear side
of the display.
5
If relevant, connect the grounding cable to vessel ground in the fuse box (or other
common grounding point).
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