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9395P 250 kVA / 275 kVA / 300 kVA
User’s and Installation Guide
8.
To transfer the UPM to Online mode, press the
CONTROLS
pushbutton on the UPS
Control
Command menu bar. The UPM Control Command screen is displayed.
9.
On the UPM Control Command screen, select
UPM GO TO ONLINE
.
10.
Press the
SELECT
pushbutton on the UPM Command menu bar.
The UPM transfers to Online mode. The UPM status indicates ONLINE.
7.6.22
Single UPS Shutdown using Load Off
To shut down a single UPS:
1.
Open the MOB for the UPS being shut down.
2.
On the UPS to shut down, press the
CONTROLS
pushbutton on the main menu bar.
The System
Status screen is displayed.
3.
On the System Status screen, select the
BYPASS
command.
4.
Press the
CONTROLS
pushbutton on the System Status menu bar. The Bypass Control
Command
screen is displayed.
5.
On the Bypass Control Command screen, select
GO TO BYPASS
.
6.
Press the
SELECT
pushbutton on the Bypass Command menu bar. The UPS being shut
down transfer
to Bypass mode.
The
BYPASS
status indicator is illuminated. The Bypass status indicates ON. The UPM
status
indicates READY. The power module remains on.
7.
Perform the LOAD OFF procedure in paragraph 7.6.27 on the UPS being shut down.
The input, output, battery, and bypass backfeed contactors open, and the power module is turned
off on the UPS being shut down.
Logic power remains on.
8.
Verify the battery breaker or disconnect for the UPS being shut down is open. If not, open the breaker.
9.
Open the input and bypass feeder circuit breakers for the UPS being shut down. The UPS
is now
completely shut down.
External Communications Failure alarm is active on remaining online UPSs. This is an
expected
event and will clear upon UPS restart.
To shut down a single UPS, MOBs with dual auxiliary contacts must be installed and connected according to the
procedure in paragraph 5.2.
NOTE
oad Off will turn off only the UPS being shut down. The remaining UPSs will remain online suppling power to the
critical load.
NOTE
WARNING
Power is present inside the UPS cabinet until the upstream input feeder circuit breaker is opened.
If the UPS contains an input breaker (CB1), DO NOT open the breaker unless no input feeder breaker is installed.
NOTE
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