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8 – Start-Up, Shutdown and Bypass
8-8 Start-Up Procedure (Parallel UPS—MUS)
•
Connect the parallel configuration cable
1
UPS) to the DB9 parallel configuration port
system. Note: Before starting up the Parallel UPS system, ensure
that the "Parallel ID" is different for each UPS and parallel group
is set to 2. See
Section 10-5-5
Section 6-8 or 6-9
Refer to
parallel port DIP switches and parallel cable connections.
•
With each UPS system's external battery cabinet connected, switch
2
on the external battery cabinet circuit breaker switch of each
battery cabinet.
3
•
Confirm that the manual bypass breaker
off. Switch on the bypass input circuit breaker switch
UPS system. After a brief initialization process, the LCD screen
will show "ON AUTO BYPASS" and the "BYPASS" LED will
illuminate.
4
•
Switch on the main input circuit breaker switch
system.
5
•
Press the ON button
(until you hear a beep), then release the button. The inverter will
activate and synchronize with the bypass source. Press the ON
button for each of the other UPS systems for 3 seconds (until you
hear a beep), then release the button. When the inverter of each
UPS system is operating normally, they will automatically switch
from auto bypass mode to on-line (normal) mode at the same time.
The "BYPASS" LEDs
C
will illuminate.
6
•
Check the output voltage of each UPS system. The phase voltage
deviation between each UPS system should be less than 5V. If the
phase deviation is within the acceptable range, switch on the output
circuit breaker switch
information on checking the output voltage of each UPS system,
Section
10-4.
see
12-212-93-3141.indb 25
All manuals and user guides at all-guides.com
A
(shipped with each
of each UPS
B
for more details.
for the appropriate settings of the
Q3
on each UPS system is
Q2
Q1
of each UPS
A
of one of the UPS systems for 3 seconds
B
will turn off and the "NORMAL" LEDs
Q4
of each UPS system. Note: For more
(continued)
B
1
2
of each
Output
3
Output
4
C
B
5
Q4
Output
6
25
B
A
Q3
Q2
Manual
Bypass
Main
Bypass
Input
Input
Q1
Manual
Bypass
Main
Bypass
Input
Input
A
Manual
Bypass
Main
Bypass
Input
Input
12/28/2012 11:17:46 AM
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