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8 – Start-Up, Shutdown and Bypass
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8-4 Battery Start-Up Procedure (Single UPS—SUS)
Note: The battery must be at least partially charged for this operation to succeed.
2
•
With the external battery cabinet connected, switch on the circuit
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breaker of the external battery cabinet.
3
4
•
2
Confirm that the main input circuit breaker switch
input circuit breaker switch
switch
Q3
and output circuit breaker switch
5
6
•
3
Press the ON button
A
release the button. The inverter will activate and use stored DC
battery power to supply AC power to the output circuit breaker.
The "BATTERY" LED
7
Warning: The output voltage and frequency must be set to the
desired values PRIOR to applying UPS inverter output to the
connected load (See Section 10-5-1).
8
•
4
After confirming output voltage and frequency are correct, turn on
output circuit breaker
connected equipment.
9
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8-5 Manual Bypass Procedure (Single UPS—SUS)
Warning: Placing the UPS system in manual bypass will disable the inverter and power all loads from the manual bypass source path, but
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the UPS system will still be energized. Before performing maintenance or repair on the UPS system, shut down and de-energize the UPS
system completely by following the steps in
path, they will not receive battery backup in the event of a utility power failure or out limits event.
To transfer the connected equipment load to Manual Bypass from NORMAL mode:
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1
•
With the UPS in NORMAL mode (green LED
displays "Load Protected – On Line Mode"), stop the inverter by
pressing and holding the red OFF ("O") button
beeps, then release the button and answer "YES" to the question
"Transfer to Bypass Mode?". The UPS should transfer to Bypass.
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2
•
Confirm the UPS is in BYPASS mode (amber Bypass LED
ON; LCD displays "Load Unprotected – On Auto Bypass"). Do
not proceed if it is not in BYPASS mode.
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12-212-93-3141.indb 22
All manuals and user guides at all-guides.com
Q1
, bypass
Q2
, manual bypass circuit breaker
Q4
are all off.
for 3 seconds (until you hear a beep), then
will illuminate.
B
Q4
to supply battery-derived power to the
Section
8-5. Although connected equipment loads will be powered through the bypass power
A
ON, LCD
until the UPS
B
(continued)
1
Q4
Output
2
B
3
Q4
Output
4
A
C
C
is
1
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Q3
Q2
Q1
Manual
Bypass
Main
Bypass
Input
Input
A
Manual
Bypass
Main
Bypass
Input
Input
B
12/28/2012 11:17:32 AM
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