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27 Liebert
®
GXT3
™
9.2.2 Battery Mode Shutdown
Battery Mode Shutdown permits shutting down the UPS by turning off the rectifier, inverter and
static switch so that there is no power to the load when the UPS is On Battery. The auxiliary power
for the UPS will still be active.
Battery Mode Shutdown can be performed locally or remotely:
• Local Battery Mode shutdown can be performed by shorting the pins in Set 4.
• Remote Battery Mode Shutdown can be performed using a switch connected to the pins in Set 4
and mounted at remote location.
Activation of the Battery Mode Shutdown will be logged as an event in the event history log.
9.2.3 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.
9.2.4 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.
9.3 Liebert IntelliSlot
®
Communication Cards
The Liebert IntelliSlot port on the UPS accepts three optional cards:
• Liebert IntelliSlot SNMP Card
• Liebert IntelliSlot Relay Card
• Liebert IntelliSlot 485 Card.
The Liebert IntelliSlot SNMP Card provides SNMP monitoring and control of the UPS across the
network.
The Liebert IntelliSlot Relay Card provides dry contact relay outputs for custom-wired applications
and delivers support for built-in shutdown for AS/400 systems.
The Liebert IntelliSlot 485 Card is used to connect the UPS and a BMS.
Follow instructions provided with the Liebert IntelliSlot card to configure Liebert MultiLink
®
, the
UPS or any additional ancillary product for the Liebert GXT3. These instructions are available at
multilink.liebert.com
NOTE
Remote Power Off will be performed by NO contact.
The current limited source for this optocoupler (+12VDC, 50mA) will be available from UPS.
The connection to the Liebert GXT3 for remote connection will be via terminal block connector.
Battery Mode Shutdown wiring must conform to all national, regional and 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 the utility power returns
during this countdown, the Liebert GXT3 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.
NOTE
The rated values for the dry contacts for the On Battery and Low Battery signals are:
• Rated Voltage: 30V (AC or DC)
• Rated Current: 300mA