77
Vertiv I Liebert ITA2 30kVA I Manual
RELAY card
Provide the dry contacts alarm information, including: batteries, bypass, low battery, the
alarm, fault and UPS signal, which is used to communicate with remote monitoring system or
with Liebert MultiLink® software used together. Regardless of the current mode of operation,
the card can also accept input signals to shut down the UPS.
Please refer to
the corresponding user manual
for installation and operation information.
6.2
Connection Cables For Dry Contact Port
The UPS provides five dry contact ports. The silkprints of the five dry contact ports are 1 ~ 12.
The pin layout of each dry contact port is shown in Figure 6-2, and the port description is
shown in Table 6-1.
1
2
3
4
5
6
7
8
9
10
11
12
GN
D
GN
D
GN
D
GN
D
GN
D
Figure 6-2
Pin layout of dry contact ports
Table 6-1
Description of the dry contact ports
Silkprint
Port name
Pin NO.
Pin name
Meaning
1
Output
port1
1
LOW_BATTER/ON_BATTERY
/ON_BYPASS/UPS_FAULT
Default: LOW_BATTER, can be set via
the LCD settings page. When the
system has as alarm, short Pin 1 and Pin
2
2
GND
GND
2
Output port
2
3
LOW_BATTER/ON_BATTERY
/ON_BYPASS/UPS_FAULT
Default: UPS_FAULT, can be set via the
LCD settings page. When the system
has as alarm, short Pin 3 and Pin 4
4
GND
GND
3
Input port 1
5
Battery mode shutdown/Any
mode shutdown (Remote
Comms Shutdown)/ Maintain
mode
Default: Maintain mode, can be set via
the LCD settings page. When Pin 5 and
Pin 6 are shorted, the function is valid
6
GND
GND
