Edit Configuration - Application
16
4.3.3 DISABLE PROTECTIONS
This feature is provided to assist the system designer in meeting specifications for “Warning only”,
“Protections Disabled”, “Run to Destruction”, “War mode” or other similar wording.
Enable
= The module will operate as normal and provide engine shutdown if required.
= Protections disabled function is activated. Operation depends upon the following
configuration.
NOTE:-Writing a configuration to the controller that has “Protections Disabled”
configured, results in a warning message appearing on the PC screen for the user to
acknowledge before the controller’s configuration is changed. This prevents
inadvertent activation of the feature.
Disable All
Protections
: The protections are not disabled
Always : Protections are always overridden by the DSE controller.
On Input : Protections are disabled whenever a configurable input set to Protections
Disabled is activated
Protections
Disabled Alarm
Action
If
is set to
, this selection allows configuration of an alarm to
highlight that the protections have been disabled on the engine.
Indication : Any output or LCD display indicator configured to Protections Disabled will be
made active, however the internal alarm sound will not operate.
Warning : Any output or LCD display indicator configured to Protections Disabled will be
made active, and the internal alarm sound will operate.
When protections are disabled, Protections Disabled will appear on the module display to
inform the operator of this status.
4.3.4 AUTO VOLTAGE SENSING
Applicable to DSE 7410 only
Auto voltage sensing instructs the controller to monitor the generators output during the safety delay timer.
During this time, the controller identifies the nominal voltage, frequency and topology of the alternator output
and selects the most appropriate ‘alternative configuration’ to use.
This is particularly useful where a generator is switched from 50Hz/60Hz or 120V/240V for example.
NOTE: - During the safety delay timer, the module factory set status page will display the L-N
voltage, based upon the generator being 3 phase, 4 wire. This can lead to incorrect status display
during the safety timer if Auto Voltage Sensing is enabled and the generator is not 3ph 4w. To prevent
this, the status page can be customised to display other parameters if required. At the end of the
safety timer, the correct voltages will be displayed.
Application
Options
Description
Enable Auto
Voltage Sensing
= The module will operate as normal.
= Auto voltage sensing is enabled. During the safety delay timer, the module attempts to
measure the system’s nominal voltage and frequency and determine the topology of the
alternator wiring. At the end of the safety timer, the main and alternative configurations are
analysed to see which one is most appropriate to suit the connected system and the module
continues to operate, using the most appropriate configuration to provide protection.
Over Voltage
During Auto
Sensing Trip
During the Auto sensing there is no over voltage trip protection from the main settings until
after the safety on timer has elapsed. Therefore the overvoltage trip value is taken from this
setting.
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