S4K2U-5C SEriES USEr mAnUAL |
33
5.3 Terminal Block Communication
The terminal block includes eight pins, as shown in Figure 26.
1
2
3
4
5
6
7
8
Any Mode
Shut Down
Battery Mode
Shut Down
Battery Mode
Low Battery
Figure 26: Terminal block layout
5.3.1 Any Mode Shutdown
The purpose of Any mode Shutdown is to shut down the UPS output by turning off the rectifier, inverter, and static
bypass switch 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 Pin 1 and Pin 2
•
remote Any mode Shutdown can be performed by a switch connected to Pin 1 and Pin 2 and mounted at a remote
location
NOTES:
•
remote Power off will be performed either by nO or nC contact of Any mode Shutdown, depending on the settings
in the configuration program.
•
A current-limited source for the optocoupler (+12 V DC, 50 mA) will be available from the UPS.
•
The connection to the UPS for remote connection will be via terminal block connector.
•
Any mode Shutdown wiring must conform to all national, regional, and local wiring regulations.
!
WARNING
When the Auto-Enable output option is selected and the UPS output is disabled using Pin 1 and Pin 2, the S4K2U-5C’s
output can turn on automatically and without warning if the Pin 1 and Pin 2 connection is changed.
5.3.2 Battery Mode Shutdown
Battery mode Shutdown permits shutting down the UPS by turning off the rectifier, 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 Battery Shutdown can be achieved by a switch connected to Pin 3 and Pin 4 and mounted at a remote
location