UPS OPERATING INSTRUCTIONS
Eaton
Power Xpert 9395P-600 (380V-600V) UPS Installation and Operation Manual
S
P-164000710 Rev 1
www.eaton.com/powerquality
7-29
7.5
Multiple UPS Distributed Bypass Operation
This section provides operating instructions for a UPS system containing multiple
UPSs in a Distributed Bypass System configuration.
NOTE
A Field Installed UPM (FI-UPM) is always designated as UPM 4.
NOTE
To obtain any system information, follow the on screen prompts to get to the proper screen. The
operator cannot inadvertently cause a system dump or disconnect unless they override a warning pop-up.
Value or information screens DO NOT affect system operation.
7.5.1
Starting the Distributed Bypass System in Online Mode
To start the distributed bypass system:
1.
Unfasten the front door latches and swing the doors open on all of the UPSs.
2.
If the UPSs contain input breakers (CB1), verify that all input breakers are open.
3.
Close all Module Output Breakers (MOBs).
4.
Close all UPS input feeder circuit breakers.
5.
Close all UPS Bypass input feeder circuit breakers.
6.
If the UPSs contain input breakers (CB1), close all input breakers.
7.
Close the doors and secure the latches.
8.
Observe the UPS control panel displays becoming active, indicating logic power.
9.
On any UPS, press the
LOCK
icon on the main screen. The Sign In screen is
displayed. Use operator password to log in (factory default password is 0101).
10.
On the System Status screen, verify the UPS status is
OK
and the UPM status is
OFFLINE
.
11.
Close all battery breakers.
12.
Verify no alarms are active on the Events Log screen.
13.
On the System Status screen, select the
UPS Controls
command.
14.
Press the
CONTROLS
pushbutton on the System Status menu bar. The UPS
Control Command screen is displayed.
15.
On the UPS Control Command screen, select
GO ONLINE
.
If Auto Bypass is enabled (factory default), the critical load is immediately
supplied by the bypass source in Bypass mode from all UPSs, until the inverter
turns on and the UPSs transfer to Online mode. The status indicator on the UPS
control panel indicates the UPS is in Bypass mode. If Auto Bypass is not enabled,
the UPS outputs remain off until the UPSs turn on the inverter and close the
inverter output contactors.
16.
The UPS START UP screen is displayed.
The rectifier and inverter turn on. The inverter continues to ramp up to full
voltage.
