8
Figure 6
–
User Connections to
Inverter Alarm Contacts on S2A-198 Board
Figure 5
–
User Connections to
Rectifier Alarm Contacts on S2A-198 Board
Figure 7
–
S2A-341S Display/Control Board
2.5
Alarm Connections
Eight alarm relays (and 10 alarm LEDs) are included on the rectifier section as a standard feature of the AUPS.
The included alarms are Low DC Current, Low DC Voltage, High DC Voltage, High Voltage Shutdown, AC
Failure, Negative Ground Detection, Positive Ground Detection, and Summary.
Five status indicator relays (and 11 status LEDs) are included on the inverter section as a standard feature of
the AUPS. The included status indicators are Phase Locked, Utility Available, Inverter Available, Load on
Preferred Source, and Load on Alternate Source.
Each alarm/status indicator relay includes two sets of form
“
C
”
contacts, enabling the user to connect multiple
remote annunciators. Refer to Figure 5 and 6 for contact connections.
Alarm LEDs are provided on the rectifier section for the following alarms: AC Fail, Low DC Voltage, End of
Discharge, High DC Voltage, High Voltage Shutdown, Low DC Current, Overload/Current Limit, Positive Ground,
Negative Ground, and Summary. Refer to Figure 7 below.
If an alarm condition occurs for a default time of longer than 5 seconds, the Summary alarm relay will activate if
the corresponding alarm is included in the Summary alarm. The HVSD alarm is default set to trigger after 20
seconds. When an alarm activates, the specific indicator on the front panel will light, any connected remote
annunciators will activate, and the display will cycle through all active alarms.
Summary of Contents for 7.5K-A1-BD3-125V100A
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