On Battery; Low Battery - Emerson SolaHD S4K2U-5C Series User Manual

34 | 5.0 Communication
NOTES:
A current-limited source for the optocoupler (+12 V DC, 50 mA) will be available from the UPS.
•
The connection to the S4K2U-5C for remote connection will be via terminal block connector.
•
Battery mode shutdown wiring will follow local wiring codes and laws.
•
This signal must last for 1.5 seconds or longer.
•
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 mains power returns during this countdown, the S4K2U-5C 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 dry contact rated values for the On Battery and Low Battery signals are:
rated Voltage: 5 V
•
Working Voltage range: 4.5–10 V
•
rated Current: 30 mA
•