Table of Contents
Advertisement
7.6.17 Transfer from Online to Bypass Mode
To transfer the critical load to Bypass mode:
CAUTION
In Bypass mode, the critical load is not protected from commercial power interruptions and abnormalities.
1.
On any UPS, press the
displayed.
2.
On the System Status screen, select the
3.
Press the
CONTROLS
screen is displayed.
4.
On the Bypass Control Command screen, select
5.
Press the
pushbutton on the Bypass Command menu bar.
SELECT
All of the UPSs transfer to Bypass mode and the critical load is immediately supplied by the bypass
source. If the bypass source is not available, the power module remains on and an alarm sounds.
The
status indicator is illuminated. The Bypass status indicates ON. The UPM status indicates
BYPASS
READY. The power module remains on.
WARNING
Power is present inside the UPS cabinet.G
7.6.18 Transfer from Bypass to Online Mode
To transfer the critical load to Online mode:
1.
If not already closed, close the battery breaker.
2.
On any UPS, press the
displayed.
3.
On the System Status screen, select the
4.
Press the
CONTROLS
is displayed.
5.
On the UPS Control Command screen, select
6.
Press the
pushbutton on the UPS Command menu bar.
SELECT
All of the UPSs transfer to Online mode. If the power module is not available, the system remains on
bypass and an alarm sounds.
The Online status indicator is illuminated. The UPS status indicates ONLINE. The UPM status
indicates ONLINE.
137
pushbutton on the main menu bar. The System Status screen is
CONTROLS
BYPASS
pushbutton on the System Status menu bar. The Bypass Control Command
pushbutton on the main menu bar. The System Status screen is
CONTROLS
UPS
pushbutton on the System Status menu bar. The UPS Control Command screen
9395P 250 kVA / 275 kVA / 300 kVA
User's and Installation Guide
command.
.
GO TO BYPASS
command.
.
GO TO ONLINE
Advertisement
Table of Contents
