MEC 320 GENSET CONTROLLER
PM079 Rev 0 07/06/08 14 Thomson Technology
General test mode description
The test mode function is activated by selecting test with the MODE push-button on the display
or by activating a digital input, if one of them is configured to ‘test’. The test mode will only test
synchronizing, if the ‘Sync. to mains’ function is enabled. If this is the case, the gen-set will start,
and the unit will synchronize and close the generator breaker to let the gen-set run in parallel,
until the test time expires. If the ‘Sync. to mains’ function is not activated, then the gen-set will
start and run at the nominal frequency with the generator breaker open.
The settings for the test function are set up in menu 6540 Test running.
•
Set point:
Load set point when paralleling to mains.
•
Timer:
Engine run time during the test period
•
Return:
When the test is completed, the unit will return to the selected mode
(semi-auto or auto).
General manual mode description
When manual mode is selected, the gen-set can be controlled with digital inputs. The following
commands are possible:
Command
Comment
Start
Gen-set starts.
Stop
Gen-set opens GB and stops
without cooling-down.
Manual increase speed
Unit gives increase signal to
speed governor.
Manual decrease speed
Unit gives decrease signal to
speed governor.
If short time parallel is activated, the test will be terminated immediately after
the short time parallel time has expired. This means the gen-set will cool down
and stop.
It is not possible to open and close the generator breaker or the mains breaker
in manual mode.
It is necessary to configure the digital inputs through the PC utility software to
use the manual commands. The number of configurable digital inputs is option
dependent.
MAN mode cannot be selected, when AUTO mode is selected. To go from AUTO
to MAN it is necessary to go to SEMI-AUTO to make MAN available.
Summary of Contents for MEC 320
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