Eaton Static Transfer Switch 2000A 3-Pole Installation and Operation Manual 164001127—Rev 01 67
• Green = Normal
• Red = Abnormal (alarm)
• Blue = Status point only, will not generate an alarm
• Black = Point is not used or is invalid in this STS implementation
The first column also displays a text interpretation of the point’s status, such as OK, Low, or Not Alarm.
To set parameters for a point, use the scroll bar to highlight a point. Then touch one of these buttons below the
panel:
• Set High sets the upper bound on acceptable measurements
• Set Low sets the lower bound on acceptable measurements
• Calibration to calibrate the measurement
Clr TX button clears the transfer counter on the Home page, resetting it to zero.
• Touch Clear TX once to clear transfer counter since last Clear TX. This is the same as the Clear button on
Home screen Transfers panel. The counter is stored in Xfrs Since Clr, a point in the Analog Points list.
• Touch Clear TX a second time to clear the cumulative total transfers counter, stored in Xfers Total in the
Analog Points list.
Clr PK clears the peak value measurement for each analog point. Each peak value will be immediately replaced
on the point’s next measurement.
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All events are recorded in the Event Log, such changes of state in a point, a transfer, user login, or an alarm.
The Event Log has 512 entries.
Alarms are specific events listed on the Alarms screen and also recorded in the Event Log.
The STS also records input and output waveforms for selected events, such as transfers or outages that can be
viewed in the Plots screen.
In case of power loss, the STS can continue recording events for approximately 15 seconds, providing
diagnostic information.
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An alarm is signaled when any monitored condition is out of normal specification. Active alarms are signaled in
several ways:
• The Home screen shows Alarm status and gives an alarm count.
• The Voice Unit of the STS states: “Static Switch, new alarm.”
• A summary alarm can be signaled when any alarm occurs by one or more of these means:
– Dry contact
– SNMP trap
– Email notification
– Modem dial out
• The Alarms screen lists a new alarm.
• The Event Log screen adds an alarm.
• The Alarms or Log web page shows a new alarm.
Status, Alarms, and Other Diagnostic Information
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