R&D – SERVICE MANUAL DT0488
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5.1.7 DE0151
UPS 20-30kVA Inverter Driver & Feedback
P+
1
5
P+
15
P+
15
P+
15
P+
15
P+
15
P+
15
P+
1
5
P+
1
5
P+
1
5
P+
1
5
P+
1
5
H
F
s
u
ppl
y
2
H
F
s
u
ppl
y
1
H
F
s
u
ppl
y
1
H
F
s
u
ppl
y
2
HF su
p
p
ly
2
HF su
p
p
ly
1
HF
su
p
p
ly
2
HF
su
p
p
ly
1
H
F
s
upp
ly
2
H
F
s
upp
ly
1
H
F
s
upp
ly
2
H
F
s
upp
ly
1
D
R
V
_
L2
-T
O
P
_I
N
G
D
R
V
_L
1-B
O
T
T
_I
N
G
G1
-T
E1
-T
DR
V
_
L
1
-T
O
P
_
IN
V
D
R
V_
L1-B
O
T
T
_I
N
V
G4-
T
E4-
T
D
R
V_
L2-
BOT
T
_I
N
G
G2
-T
E2
-T
D
R
V_
L2-
T
O
P
_
IN
V
D
R
V
_L2
-BO
T
T
_
IN
V
G5
-T
E5-
T
D
R
V
_L3
-T
O
P
_
IN
G
D
R
V_
L3-
BOT
T
_I
N
G
G6
-T
E3
-T
D
R
V_
L3-
T
O
P
_
IN
V
D
R
V
_L3
-BO
T
T
_
IN
V
G3
-T
E6-
T
D
R
V
_
L1
-T
O
P
_I
N
G
E1
-B
G1
-B
G2
-B
E2
-B
E3
-B
G3
-B
G6
-B
E6-
B
E5-
B
G5
-B
G4-
B
E4-
B
D5
U
F
4
007
2
1
Z5
15V
2
1
D1
1
1N
414
8
2
1
R1
4
1K
+
C1
7
100µF 35V
+
C2
100µF 35V
D1
4
1N
414
8
2
1
R2
3
1
0
+
C1
1
100µF 35V
+
-
To
tem
IS
O
2
H
C
P
L31
20
2
3
6
5
8
7
D2
1
N
41
48
2
1
TP
5
Z8
15
V
2
1
R8
1
0
R2
6
10
R2
1
0
TP
8
R1
7
1K
TP
2
Z2
P6KE18CAC250
2
1
TP
1
1
D8
U
F
40
07
2
1
+
C8
100µF 35V
R6
1.
8
K
T2
VAC
47
21X
004
1
6
3
2
4
5
C1
4
1µ
F
R1
2
270
C5
1µF
D1
7
1N
414
8
2
1
Z1
1
P6KE18CAC250
2
1
+
-
T
ote
m
IS
O
5
H
C
P
L
31
20
2
3
6
5
8
7
R1
0
27
0
R4
1.
8
K
TP
2
6
TP
1
3
R1
9
1.
8
K
R2
8
27
0
R2
9
27
0
R2
0
1.
8
K
R4
2
27
0
R3
6
1.
8K
R5
9
27
0
R5
0
1.
8
K
R2
1
1.
8K
R3
0
27
0
R3
5
1.
8
K
R4
1
27
0
Z6
15V
2
1
D6
U
F
40
07
2
1
+
C1
8
100µF 35V
+
C3
100µF 35V
D1
2
1N
414
8
2
1
R1
5
1K
+
C1
2
100µF 35V
+
-
To
te
m
IS
O
3
H
C
P
L31
20
2
3
6
5
8
7
D1
5
1N
414
8
2
1
R2
4
1
0
Z9
15
V
2
1
R9
1
0
D3
1
N
41
48
2
1
TP
6
TP
9
R1
8
1K
R2
7
10
R3
1
0
TP
1
2
TP
3
Z3
P6KE18CAC250
2
1
C1
5
1µ
F
C6
1µF
D9
U
F
40
07
2
1
+
C9
100µF 35V
+
-
T
ote
m
IS
O
6
H
C
P
L
31
20
2
3
6
5
8
7
D1
8
1N
414
8
2
1
Z1
2
P6KE18CAC250
2
1
D2
2
U
F
400
7
2
1
Z1
6
15V
2
1
D2
8
1N
41
48
2
1
R4
3
1K
+
C3
4
100µF 35V
+
C1
9
100µF 35V
R5
8
270
D3
1
1N
41
48
2
1
R4
9
1.
8K
R5
2
1
0
+
C2
8
100µF 35V
+
-
T
ote
m
IS
O
7
H
C
PL3
120
2
3
6
5
8
7
R3
7
1
0
D1
9
1N
4
148
2
1
TP
1
7
Z1
9
15V
2
1
R5
5
10
R
3
1
10
TP
2
0
R4
6
1K
TP
1
4
Z1
3
P6KE18CAC250
2
1
T4
VA
C
4
721
X
0
0
4
1
6
3
2
4
5
TP
2
3
D2
5
U
F
4
007
2
1
+
C2
5
100µF 35V
C3
1
1µ
F
C2
2
1µ
F
+
-
Tot
em
IS
O
1
0
H
C
PL
312
0
2
3
6
5
8
7
D3
4
1N
414
8
2
1
Z2
2
P6KE18CAC250
2
1
Z2
3
P6KE18CAC250
2
1
T5
VA
C
4
721
X
0
0
4
1
6
3
2
4
5
D2
6
U
F
4
007
2
1
C2
3
1µ
F
+
-
T
ote
m
IS
O
8
H
C
PL3
120
2
3
6
5
8
7
TP
1
5
+
-
Tot
em
IS
O
1
1
H
C
PL
312
0
2
3
6
5
8
7
R5
1
1.
8K
R
3
2
10
R6
0
27
0
+
C2
0
100µF 35V
D2
9
1N
41
48
2
1
D3
2
1N
41
48
2
1
TP
1
8
D2
3
U
F
400
7
2
1
Z2
0
15V
2
1
Z1
7
15
V
2
1
C3
2
1µ
F
R4
7
1K
R5
6
10
TP
2
1
+
C7
100µF 35V
Z4
15
V
2
1
+
C3
5
100µF 35V
R5
3
1
0
D3
5
1
N
41
48
2
1
D4
U
F
4
007
2
1
D1
0
1N
414
8
2
1
+
C2
6
100µF 35V
+
C2
9
100µF 35V
TP
1
Z1
4
P6KE18CAC250
2
1
TP
2
4
R3
8
1
0
D2
0
1N
414
8
2
1
+
C1
100µF 35V
T1
VAC
47
21X
004
1
6
3
2
4
5
R4
4
1K
C3
3
1µ
F
R1
3
1K
+
-
T
ote
m
IS
O
4
H
C
PL3
120
2
3
6
5
8
7
D2
4
U
F
400
7
2
1
+
C1
6
100µF 35V
D3
3
1
N
41
48
2
1
D1
3
1N
414
8
2
1
T6
VA
C
4
721
X
0
0
4
1
6
3
2
4
5
D3
6
1
N
41
48
2
1
R2
2
1
0
TP
1
0
R4
5
1K
+
-
To
tem
IS
O
1
H
C
P
L31
20
2
3
6
5
8
7
Z2
4
P6KE18CAC250
2
1
+
C1
0
100µF 35V
Z1
5
P6KE18CAC250
2
1
+
C3
6
100µF 35V
Z1
0
P6KE18CAC250
2
1
+
-
T
ote
m
IS
O
9
H
C
PL3
120
2
3
6
5
8
7
Z2
1
15V
2
1
D2
7
U
F
4
007
2
1
D1
1N
4
148
2
1
R
5
4
10
C2
4
1µ
F
C4
1µF
Z1
8
15
V
2
1
R7
1
0
Z7
15
V
2
1
+
C2
7
100µF 35V
TP
4
D7
U
F
40
07
2
1
R
3
3
10
Z1
P6KE18CAC250
2
1
TP
2
5
R2
5
10
D2
1
1N
414
8
2
1
R
3
9
10
TP
7
R1
1
0
TP
1
9
R1
6
1K
+
C2
1
100µF 35V
D1
6
1N
4
148
2
1
R5
7
10
R4
8
1K
+
-
Tot
em
IS
O
1
2
H
C
PL
312
0
2
3
6
5
8
7
C1
3
1µF
TP
1
6
+
C3
0
100µF 35V
TP
2
2
D3
0
1
N
41
48
2
1
R3
4
1.
8
K
R4
0
27
0
T3
VAC
47
21X
004
1
6
3
2
4
5
R1
1
27
0
R5
1.
8
K
IN
V
E
RT
E
R
_
IN P
H
AS
E
L
1
IN
V
E
RT
E
R
_
O
UT
P
H
AS
E
L
1
IN
V
E
RT
E
R
_
IN P
H
AS
E
L
2
IN
V
E
RT
E
R
_
O
UT
P
H
AS
E
L
2
IN
V
E
RT
E
R
_
IN P
H
A
S
E
L
3
IN
V
E
RT
E
R
_
O
U
T
P
H
AS
E
L
3