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R
3P20
J14
J14
eplacing the DC surge arrester boards (-SX/SX2 models only)
2
Pb-free
1
MP18
MP18
MP19
MP19
K1
K1
MP15
MP15
MP16
MP16
MP17
MP17
C22
C22
C24
C24
C26
C26
C23
C23
C25
C25
C27
C27
U10
U10
U11
U11
U7
U7
U8
U8
J11
J11
J18
J18
J8
J8
J12
J12
J22
J22
J9
J9
J13
J13
J26
J26
J10
J10
2
1
2
1
2
1
CH2
CH4
CH6
J17
J17
J21
J21
J25
J25
MP12
MP12
MP13
MP13
C19
C19
C40
C40
C20
C20
C38
C38
C21
C21
C43
C43
MP10
MP10
C13
C13
C15
C15
C17
C17
C14
C14
C16
C16
C18
C18
MP7
MP7
MP8
MP8
U4
U4
U5
U5
J2
J2
J16
J16
J3
J3
J4
J4
J20
J20
J5
J5
J6
J6
J24
J24
J7
J7
U1
U1
U2
U2
2
1
2
1
2
1
CH1
CH3
CH5
J15
J15
J19
J19
J23
J23
C1
C1
C39
C39
MP4
MP4
C2
C2
C41
C41
MP5
MP5
C3
C3
C42
C42
MP1
MP1
MP2
MP2
MP3
MP3
20
19
53
Some inverter parts may be subject to voltages that could be hazardous for the operator.
19
MP20
MP20
U12
U12
U9
U9
MP14
MP14
Replacing the DC surge arrester boards may be necessary in the
MP11
MP11
MP9
MP9
U6
U6
following circumstances:
U3
U3
J14
J14
MP6
MP6
2
1. "Alarm" LED flashing, "Power" LED steady ON.
1
MP18
MP18
K1
K1
MP15
MP15
C22
C22
C23
C23
2. Presence of "W018" Error in Inverter Log section of web user interface.
U7
U7
J11
J11
J18
J18
J8
J8
2
1
CH2
J17
J17
3. The inspection window of DC surge arrester cartridge is RED.
MP12
MP12
C19
C19
C40
C40
MP10
MP10
C13
C13
C14
C14
MP7
MP7
J2
J2
J16
J16
J3
J3
2
1
U1
U1
CH1
J15
J15
The DC overvoltage surge arrester board
C1
C1
C39
C39
MP4
MP4
MP1
MP1
box
and is accessible after opening both fuse boards (positive and
02
negative).
Procedure for replacing one of the DC surge arrester boards:
1. Before performing any work on the inverter, refer to "Inverter total de-
energization and safe access" chapter on this manual to know all the
necessary step to safely operate on the inverter.
A
2. Open the front wiring box cover
3. Remove the screw and the DC protective shield
4. Open the positive fuse board
• Remove the two M5 screws from the positive string fuses plate
• Tilt the positive string fuses plate
• Use a screwdriver, to lock the positive string fuses plate ( picture
B
MP3
MP7
MP6
3P20
R S
Pb-free
MP8
MP2
MP19
MP19
MP20
MP20
C1
MP16
MP16
MP17
MP17
MP9
T
MP1
C24
C24
C26
C26
C3
C25
C25
C27
C27
U10
U10
U11
U11
U12
U12
C2
MP4
MP5
U8
U8
U9
U9
J12
J12
J22
J22
J9
J9
J13
J13
J26
J26
J10
J10
2
1
2
1
CH4
CH6
J21
J21
J25
J25
MP13
MP13
MP14
MP14
C20
C20
C38
C38
C21
C21
C43
C43
MP11
MP11
C15
C15
C17
C17
C16
C16
C18
C18
MP8
MP8
MP9
MP9
U4
U4
U5
U5
U6
U6
J4
J4
J20
J20
J5
J5
J6
J6
J24
J24
J7
J7
2
1
U2
U2
2
1
U3
U3
CH3
CH5
J19
J19
J23
J23
C2
C2
C41
C41
MP5
MP5
C3
C3
C42
C42
MP6
MP6
MP2
MP2
MP3
MP3
.
07
.
19
- 175 -
8 - Maintenance
MP3
MP7
MP6
is placed inside the wiring
53
R S
MP8
MP2
C1
MP9
MP1
T
C3
C2
MP4
MP5
(picture
)
60
A
19
B
.
)
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