DSE DSE331, Руководство оператора

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Operation
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6 OPERATION
6.1 AUTOMATIC MODE OF OPERATION
NOTE:- If a digital input configured to external panel lock is active, changing module modes will not
be possible. Viewing the instruments is NOT affected by panel lock.
Activate auto mode by pressing the mode button until Auto is selected and then press the button to
confirm.
Auto mode will allow the transfer system to operate fully automatically, switching between S1 and S2 as required
with no user intervention.
6.1.1 WAITING IN AUTO MODE
If a starting request is made and there is no input present for Auto Start Inhibit, the starting sequence will begin.
Starting requests can be from the following sources :
•
S1 failure
•
Activation of an auxiliary input that has been configured to remote start
•
Activation of the inbuilt exercise scheduler.
6.1.2 STARTING SEQUENCE
To allow for ‘false’ start requests, the start delay timer begins.
Should all start requests be removed during the start delay timer, the unit will return to a stand-by state.
When S2 is configured for a generator If a start request is still present at the end of the start delay timer the Start
and Run S2 output will be energised. After the generator has started, it will enter the warming up timer.
If S2 fails to become available before the S2 Fail Delay timer expires the module will alarm. This is indicated on
the LCD display but the starting signal remains active.
6.1.3 S1 / S2 ON LOAD
Once S2 is measured as being within limits S1 is removed from the load, and after the transfer timer has expired,
S2 is placed on load.
If all start requests are removed and there is no input present for Auto Restore Inhibit, the stopping sequence will
begin.
6.1.4 STOPPING SEQUENCE
The return delay timer operates to ensure that the starting request has been permanently removed and isn’t just a
short term removal.
After the return delay timer, the generator load switch is opened, then after the transfer timers, the mains is placed
back on load.
Should another start request be made during the cooling down period, the generator will be placed on load.
The cooling timer allows the set to run off load and cool sufficiently before being stopped. This is particularly
important where turbo chargers are fitted to the engine.
After the cooling timer has expired, the set is stopped.