Liebert 130 kVA User Manual
Page 52
User Manual
Hipulse - Single Phase ‘1+N’ UPS System
130 kVA - 110V
32
5.2
Procedure for UPS Start-up: without interrupting power
to the load
This procedure will describe
how to start the UPS and the
how to transfer the load from
the external maintenance
bypass to the UPS inverter. It is
assumed that the installation is
complete, the system has been
commissioned by authorized
personnel and the external
power isolators are closed.
Refer to Fig 5-1 for
corresponding isolators Q1 to
Q4, and Fig 5-2 Operator
Control Panel for various LEDs
and Display indications.
ENSURE CORRECT PHASE ROTATION
1. Close Q3 Maintenance Bypass switch and
external switch (inside Maintenance Bypass) to
load.
2. Close the output power switch Q4 and the
Bypass power switch Q2.
Initializing Window:
After first connecting power to the UPS and closing
the isolator, this message will appear on the LCD
screen. It persists for about five seconds while the
control firmware is loaded by a screen showing
various messages with the time and date on the
bottom line.
The Module Mimic indicators Bypass supply
healthy (1) and after 20 seconds Load on Bypass
(6) will flash and red led (13) will illuminate.
ESC
MENU
ENTER
INV
%
DISPLAY
1
2
3
7
8
9
10
11
12
13
14
15
16
17
18
19
4
5
6
Fig 5 - 2: Operator Control Panel
Fig 5 - 1: Location of Power Isolators
EMERSON NETWORK POWER
3PH-1PH
UPS
EMERSON NETWORK POWER
3PH-1PH
UPS
Q3
Q1
Q2
Q4
Bypass
Isolator
Maint.
Bypass
Output
Isolator
Input
Supply