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| 5.0 Communication
NOTES:
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Remote power off will be performed by NO contact
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A current-limited source (+12 V dc, 50 mA) will be available from the UPS
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The connection to the S4K2UC for remote connection will be via terminal block connector
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Battery mode shutdown wiring will follow local wiring codes and laws
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This signal must last for 1.5 seconds or longer
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A battery shutdown signal will not cause an immediate shutdown. It will start a 2 minute shutdown timer. This timer
cannot be stopped once triggered. If utility power returns during this countdown, the S4K2UC will still shut down and
must remain shut down for 10 seconds. Whether the UPS turns back on when the power is restored depends on the
auto-restart setting.
5.3.3 On Battery
On Battery signal is a Normally Open (NO) dry contact. When the UPS is supplying output power from the battery this dry
contact will be closed.
5.3.4 Low Battery
Low Battery signal is a Normally Open (NO) dry contact. When the UPS is supplying output power from the battery and
has reached the Low Battery Warning time selected in the configuration program, this dry contact will be closed.
The rated values for the dry contacts are:
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Rated Voltage: 5 V dc
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Working Voltage Range: 4.5–10 V dc
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Rated Current: 30 mA