6
Power Module
6.1 Failure Power Module Identify
WARNING: Before opening the unit, please make sure that the UPS is in Manual Bypass mode so that it
continues to supply power to the critical load (the critical load is supported directly by utility power).
These instructions will help you diagnose which power modules have failed and which are protected.
1) Check the warning messages by pressing the " " or " " button on the main page of the control panel. (Figure 6.1a) (Table 5.1b lists the
conditions for each power module warning message)
2) Check the event log message. (Figure 6.1b) (Maintenance
Event Log
P
P
W
W
R
R
M
M
O
O
D
D
U
U
L
L
E
E
#
#
1
1
P
P
F
F
C
C
F
F
U
U
S
S
E
E
O
O
P
P
E
E
P
P
W
W
R
R
M
M
O
O
D
D
D
D
U
U
L
L
E
E
●
●
S
S
E
E
R
R
V
V
I
I
C
C
E
E
R
R
E
E
Q
Q
U
U
◆
◆
Fig 6.1a
M
M
E
E
A
A
S
S
U
U
R
R
E
E
U
U
P
P
S
S
S
S
E
E
T
T
U
U
P
P
M
M
A
A
I
I
N
N
T
T
E
E
N
N
A
A
N
N
C
C
E
E
M
M
A
A
I
I
N
N
T
T
E
E
N
N
A
A
N
N
C
C
E
E
S
S
T
T
A
A
T
T
I
I
S
S
T
T
I
I
C
C
E
E
V
V
E
E
N
N
T
T
L
L
O
O
G
G
M
M
A
A
N
N
U
U
A
A
L
L
S
S
E
E
T
T
U
U
P
P
F
F
I
I
R
R
M
M
W
W
A
A
R
R
E
E
U
U
P
P
G
G
O
O
T
T
H
H
E
E
R
R
S
S
E
E
V
V
E
E
N
N
T
T
L
L
O
O
G
G
R
R
E
E
A
A
D
D
E
E
R
R
A
A
S
S
E
E
EVENT LOG
EVENT LOG
07-07-03 13:17:00
07-07-03 13:17:00
UPS State:Load on Inverter
UPS State:Load on Inverter
07-07-03 13:15:57
07-07-03 13:15:57
Input Voltage Normal
Input Voltage Normal
07-07-03 13:15:57
07-07-03 13:15:57
Input Frequency Normal
Input Frequency Normal
07-07-02 13:15:54
07-07-02 13:15:54
UPS State: Load on Bypass
UPS State: Load on Bypass
07-07-02 13:15:53
07-07-02 13:15:53
Input Frequency Abnormal
Input Frequency Abnormal
07-07-02 13:10:16
07-07-02 13:10:16
Input Voltage Abnormal
Input Voltage Abnormal
Fig 6.1b
114
Read)
N
N
#
#
1
1
O
O
F
F
F
F
I
I
R
R
E
E
D
D
&
&
T
T
E
E
S
S
T
T
R
R
A
A
D
D
E
E