5.11.22. PREFERRED SOURCE ALTERNATION INTERVAL
When the ATS is ordered with a Dual Source option, a control feature is provided to allow
automatic changing of “Preferred” sources to balance operating hours. The feature
allows a programmable time interval between 1 - 672 hours. Note: This control feature
is only operational when the “Preferred” source selector is in the “AUTO” position. Refer
to Section 4.7.1 for further details on Dual Source Operation.
5.11.23. TRIP UTILITY (SRC 1) WHEN CLOSED TRANSITION INHIBIT
ACTIVATED
When the ATS is ordered with a Closed Transition option (i.e. ATS Model Code Digit #13
“Operation Type” 3 or 4), a control feature is provided which will trip open the selected
source power switching device should an inhibit operation signal be activated by an
external Utility supply protection relay (i.e. programmable digital input DI-10).
NO: The generator power switching device will immediately trip open if both
power switching devices are closed during a closed transition transfer sequence
and the Closed Transition Inhibit digital input is activated.
YES: The utility power switching device will immediately trip open if both power
switching devices are closed during a closed transition transfer sequence and
the Closed Transition Inhibit digital input is activated.
5.11.24. CURRENT METERING
If the ATS was purchased with the LPM (Load Power Metering Option) or CT kit option,
the current metering can be enabled by setting the value to YES.
5.11.25. ENABLE OPEN TRANSITION IN-SYNC TRANSFER (ATS
MODEL X)
The Open Transition Transfer setting will appear if the ATS is ordered with an Open
Transition Transfer option (i.e. ATS Model Code Digit #13 “Operation Type” X, Open
Transition In-sync Transfer).
NO: When the option is set to NO, the ATS will only operate in Open Transition
transfer with neutral delay mode.
YES: When the option is set to YES, the ATS will operate in an Open Transition
In-sync transfer sequence dependent upon if both sources are available. Note:
the ATS will automatically revert to open transition transfer with neutral delay
should only 1 source of power be available at time of transfer.
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