Emerson SOLAHD S4KC Series - On Battery; Low Battery

34 | 5.0 Communication
5.3.2 Battery Mode Shutdown
Battery Mode Shutdown permits shutting down the UPS by turning o the rectier, inverter and static bypass switch so
that there is no power to the load when the UPS is on battery.
Battery Mode Shutdown can be performed locally or remotely:
• Local Battery Shutdown can be performed by shorting Pin 3 and Pin 4
• Remote Any Mode Shutdown can be achieved by a switch connected to Pin 3 and Pin 4 and mounted at a remote
location
NOTES:
• A current-limited source for the optocoupler (+12 VDC, 50 mA) will be available from the UPS.
• The connection to the S4K2UC 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 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 conguration program, this dry contact will be closed.
The dry contact rated values for the On Battery and Low Battery signals are:
• Rated Voltage: 5 VDC
• Working Voltage Range: 4.5–10 VDC
• Rated Current: 30 mA