MEC 2 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM056 Rev 6 05/10/15 Thomson Technology
56
9.3.20.OVER SPEED TRANSIENT DELAY
Select desired over speed transient delay time in seconds. Time setting may be
entered in tenths of seconds.
9.3.21.RUN OUTPUT FAIL-SAFE
When enabled, this feature will inhibit the run output until the controller receives a
speed sensing signal, thus preventing possible damage from starting the engine
with no speed sensing for crank disconnect and over speed. If selected, ensure
that the speed signal is not less than 3.0VAC from the magnetic pick up while the
engine is cranking. Note: If this feature is disabled, no over speed protection or
crank disconnect will be provided if the speed signal fails. Should the user elect
to disable this feature Thomson Technology strongly recommends that backup
crank disconnect protection and additional over speed protection is utilized.
NOTE:
The run output Fail-safe feature will be factory
programmed as enabled. The user of this
equipment may elect to change this feature
dependent upon site conditions and does so at
their discretion.
9.3.22.LOSS OF SPEED SIGNAL
Select the desired action (i.e. alarm or shutdown) when a loss of speed signal is
detected during operation. Note: A loss of speed signal must be detected for
longer than 2 seconds to initiate the desired action.
9.3.23.COMMON FAIL FOR “NOT IN AUTO” FUNCTION
Use this function to select if a “common fail” alarm condition is to be activated
when the engine controller is not selected for “automatic” operation.
9.3.24.HORN FOR NOT IN AUTO
The Horn may be programmed to sound when the controllers operating mode is
switched from the Auto position. If the Horn is not to sound, select program
setting “no”.
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