- 4 - 057-001 720 Operating Instructions Issue 3.1 20/12/2005 AM
1 INTRODUCTION
The DSE 720 automatic mains failure module has been primarily designed to monitor the mains
(utility) supply, starting the generator automatically should it fall out of limits, transferring the load
automatically to the generator. Once the mains (utility) has returned the load is automatically
transferred back to the mains (utility) and the generator cooled down before it stops. If required the
generator can be started and stopped manually.
The DSE 720 module monitors the mains (utility) supply indicating the status of the mains via an
LED. Additionally the module monitors the engine, indicating that the generator is running via an
LED. An LCD display is used to indicate further status and alarm conditions. When a fault is
detected the generator is automatically shut down, giving a true first up fault condition.
Using the module’s front panel configuration editor it is possible to alter selective operational
sequences, timers and alarm trips. Comprehensive configuration and monitoring is also available
using the 700 series PC configuration software for Windows™.
The module is housed in a fully enclosed robust plastic case for front panel mounting, offering a
high IP rating of 56 with the optional gasket. Connections to the module are via locking plug and
sockets.
2 CLARIFICATION OF NOTATION USED WITHIN THIS
PUBLICATION.
NOTE:
Highlights an essential element of a procedure to ensure correctness.
CAUTION!
Indicates a procedure or practice which, if not strictly observed, could result
in damage or destruction of equipment.
WARNING!
Indicates a procedure or practice, which could result in injury to personnel
or loss of life if not followed correctly.
©
Deep Sea Electronics Plc owns the copyright to this manual, which cannot
be copied, reproduced or disclosed to a third party without prior written
permission.
Compliant with BS EN 60950 Low Voltage Directive
Compliant with BS EN 50081-2 EMC Directive
Compliant with BS EN 50082-2 EMC Directive
C US
UL Registered Component for USA & Canada
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