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8 – Start-Up, Shutdown and Bypass
1
8-11 Switching to Normal Mode from Manual Bypass Mode (Parallel UPS—MUS)
•
If the UPS systems have external battery cabinets connected,
1
2
switch on the external battery cabinet circuit breaker switch of
each battery cabinet for each UPS.
3
4
•
2
Switch on the bypass input circuit breaker switch
output circuit breaker switch
5
6
•
Confirm that all UPS systems are in manual bypass mode, then
3
switch off the manual bypass input circuit breaker switch
of each UPS system. The LCD screen will read "ON AUTO
BYPASS".
7
8
•
Switch on the main input circuit breaker switch
4
system.
9
10
•
Press the ON button
A
5
you hear a beep), then release the button. Press the ON button
for each of the remaining UPS system for 3 seconds (until you
hear a beep), then release the button. When the inverters of all
UPS systems are operating normally, they will switch to on-line
11
(normal) mode at the same time.
12
13
14
12-212-93-3141.indb 28
All manuals and user guides at all-guides.com
Q2
and the
of each UPS system.
Q4
Q1
of each UPS
of the first UPS system for 3 seconds (until
(continued)
1
Q4
Output
2
Q3
Output
3
Output
4
5
28
Q2
Manual
Bypass
Main
Bypass
Input
Input
Q3
Manual
Bypass
Main
Bypass
Input
Input
Q1
Manual
Bypass
Main
Bypass
Input
Input
A
12/28/2012 11:17:51 AM
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