1
5
9
3
7
11
2
6
10
4
8
12
13
14
1
2
Output
Manual
Bypass
Bypass
Input
Main
Input
Q3
3
4
5
Output
Manual
Bypass
Bypass
Input
Main
Input
Output
Manual
Bypass
Bypass
Input
Main
Input
Q4
Q2
Q1
A
C
B
21
8 – Start-Up, Shutdown and Bypass
(continued)
8-3 Standard Start-Up Procedure (Single UPS—SUS)
•
With the external battery cabinet connected, switch on the circuit
breaker of the external battery cabinet.
•
Confirm that the manual bypass circuit breaker switch
Q3
is off.
•
Switch on the bypass input breaker switch
Q2
and then output
circuit breaker switch
Q4
. After a brief initialization process, the
LCD screen will show “ON AUTO BYPASS”, the “BYPASS”
LED will illuminate and UPS system output will be supplied by
the input power source via the bypass path.
•
Switch on the main input circuit breaker switch
Q1
. If the AC
input power source is normal, the UPS system is ready for start-up.
Note: In addition to the external battery cabinet breaker being
turned on, the normal on-line running status of the four (4) circuit
breakers is:
Q1
,
Q2
and
Q4
On (closed);
Q3
Off (open). This is
shown in the diagram
4
to the right.
•
Press the ON button
A
for 3 seconds (until you hear a beep), then
release the button. The inverter will activate and synchronize with
the bypass source, then automatically switch from auto bypass
mode to online (normal) mode. The “BYPASS” LED
B
will turn
off and the “NORMAL” LED
C
will illuminate.
3
2
1
4
5
12-212-93-3141.indb 21
12/28/2012 11:17:31 AM
