Emerson Liebert GXT4-700RT230 - RS232 Port Communication; Terminal Block Communication; Any Mode Shutdown

28 Chapter 5 Communication
Liebert GXT4 UPS 700VA ~ 3000VA (230V) User Manual
 Select one of multiple output voltages to match various voltages, see Table 5-1.
Table 5-1 Output voltage option
UPS model Factory default, Vac Output voltage option, Vac
GXT4-700RT230 ~ GXT4-3000RT230 230 220/230/240
GXT4-700RT230E ~ GXT4-3000RT230E 230 220/230/240
 Warning
The output voltage settings cannot be changed while the UPS is on and powering connected loads.
 Note
For all 230V models, when the output voltage is programmed for 220Vac, the UPS will be automatically derated as follows (refer
to Chapter 9 Specifications for VA and watt ratings):
700VA ~ 1000VA: derated to 96% of both the VA and Watt ratings.
 Note
1. This program is compatible with UPS models beginning with ‘GXT4’, as in ‘GXT4- 3000RT230.’ It is not compatible with
earlier versions of the Liebert GXT UPS.
2. A computer running Windows 2000®, XP® , Vista®, Windows 7 is required to set up and run the configuration program.
5.3 RS232 Port Communication
The RS232 port is used to connect the UPS with network server or other computer system using Liebert MultiLink.
5.4 Terminal Block Communication
The Terminal Block includes eight pins, as shown in Figure 5-1.
Any Mode
Shutdown
1
2
3
4
5
6
7
8
Battery Mode
Shutdown
Low Battery
On Battery Mode
Figure 5-1 Terminal block communication pin layout
5.4.1 Any Mode Shutdown
The purpose of Any Mode Shutdown is to shut down the UPS output by turning off the rectifier, inverter and bypass
so that there is no power to the loads.
Any Mode Shutdown can be operated locally and remotely, as described as follows:
 Local Any Mode Shutdown can be performed by shorting Pin1 and Pin2.
 Remote Any Mode Shutdown can be performed by a switch connected to Pin1 and Pin2 and mounted at a
remote location.
 Note
1. Remote Power off will be performed either by NO or NC contact of Any Mode Shutdown, depending on the settings in the
configuration program.
2. A current-limited source (+12Vdc, 50mA) will be available from the UPS.
3. The connection to the UPS for remote connection will be via terminal block connector.
4. Any Mode Shutdown wiring must conform to all national, regional and local wiring regulations.