2.
In the System controls screen, press the
Go online
button.
The UPS system transfers to the double conversion mode. If there is not
enough UPM capacity available, the system remains in the bypass mode and
an alarm sounds.
The UPS now operates in the double conversion mode. The green status
indicator for normal operation is lit in all the UPSs and UPMs in the system. The
system status is shown as
UNIT ONLINE
. The UPM status is shown as
ACTIVE
.
7.4.4
Transfer from the double conversion mode to the bypass mode
CAUTION
In the bypass mode, the critical load is not protected from mains power
interruptions and abnormalities.
To transfer the critical load to the bypass mode.
1.
In the home screen, press
Controls
.
The System controls screen appears.
2.
In the System controls screen, press the
Go to bypass
button.
The UPS system transfers to the bypass mode and the critical load is
immediately supplied by the bypass source. If the bypass source is not
available, the power processor remains on and an alarm sounds.
The UPS system now operates in the bypass mode and the yellow bypass status
indicator is lit. The UPM status is shown as
Ready
. The system status is shown
as
ON BYPASS
.
7.4.5
Transfer from the double conversion mode to the Energy Saver
System mode
NOTE: Note that the Energy Saver System mode commands are displayed only
if enabled at the factory or by an Eaton authorized Customer Service Engineer.
To transfer the critical load to the Energy Saver System mode.
1.
In the home screen, press
Controls
.
2.
Select
Service controls
.
3.
Select
Enable ESS
.
The entire UPS system transfers to the Energy Saver System mode and the
critical load is supplied by the bypass source. If the bypass source is not
available or the conditions are not correct for the ESS mode, the power
module remains on and an alarm sounds. The green status indicator for
normal operation is lit in the UPS. The UPS status is shown as
UNIT
ONLINE, ESS
. The UPM status LEDs are lit and the UPM status is shown as
READY
.
© Eaton Corporation plc 2020. All rights reserved.
Revision: 001
Document ID: P-164000956
99 (141)
Eaton 93PM G2 UPS 50 – 360 kVA
User’s and Installation Guide