Vertiv Liebert GXT5 Series Installer/User Manual page 22

NOTE: The emergency power-off (EPO) action of the UPS closes the rectifier, inverter and static bypass,
but it cannot disconnect the UPS mains input inside. To completely disconnect the UPS, disconnect the
upstream input circuit breaker when generating the EPO. For details on REPO connection and operation, see
Connecting a Remote Emergency Power-off (REPO) Switch
Table 2-2 Dry-contact Connection and Pin-out Descriptions
PORT PORT PIN
NO. NAME NO.
1 Remote Comms Shutdown 1
1
Input 1
2 Signal Ground
3 Remote Comms Shutdown 2
2
Input 2
4 Signal Ground
5 EBC Detection
3 Battery
Detection
6 EBC Detection
7 +5V
REPO REPO
8 REPO Coil -NC
Input
5 Output 5 9, 10 Remote Fault Alert 5
6 Output 6 11, 12 Remote Fault Alert 6
Vertiv | Liebert® GXT5™ | Installer/User Guide
PIN NAME
User configurable dry-contact input that can be set to trigger the events below� The user
can also select the dry-contact as either NO or NC� (See
page 37) When NO, Pins 1 and 2 are shorted to trigger the event� When NC, Pins 1 and
2 are opened to trigger the event�
Options are:
• Disable (default)
• Battery mode shutdown - If the UPS is running on batteries and this input is triggered,
the UPS shuts down
• Any mode shutdown - If this input is triggered, the UPS shuts down regardless of current
operating mode
Signal Ground
User configurable dry-contact input that can be set to trigger the events below� The user
can also select the dry-contact as either NO or NC� (See
page 37) When NO, Pins 3 and 4 are shorted to trigger the event� When NC, Pins 3 and
4 are opened to trigger the event�
Options are:
• Disable (default)
• Battery mode shutdown - If the UPS is running on batteries and this input is triggered,
the UPS shuts down
• Any mode shutdown - If this input is triggered, the UPS shuts down regardless of current
operating mode
Signal Ground
Automatically detects number of external- battery cabinets when pins 5 and 6 are
connected to the detection port, see
Automatically detects number of external- battery cabinets when pins 5 and 6 are
connected to the detection port, see
REPO power supply, 5-Vdc 100-mA
NC, activated when Pin 7 and Pin 8 is open
NOTE: For details on REPO connection and operation, see
Emergency Power-off (REPO)
User configurable dry-contact output that can be set to alert the user to the faults below�
The user can also select the dry-contact as either NO or NC� (See
Options on
NC, Pins 9 and 10 are opened when the fault occurs�
Options are:
• Low battery (default)
• On battery
• On bypass
• UPS fault
User configurable dry-contact output that can be set to alert the user to the faults
below� The user can also select the dry-contact as either NO or NC� (See
Parameter Options
occurs� When NC, Pins 11 and 12 are opened when the fault occurs�
Options are:
• Low battery
• On battery
• On bypass
• UPS fault (default)
on the next page.
DESCRIPTION
Installing External Battery Cabinets
Installing External Battery Cabinets
Switch.
page 37) When NO, Pins 9 and 10 are shorted when the fault occurs� When
on page 37) When NO, Pins 11 and 12 are shorted when the fault
System Parameter Options on
System Parameter Options on
on page 13�
on page 13�
Connecting a Remote
System Parameter
System
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