SMA SUNNY CENTRAL Maintenance manual User Manual
Page 59
SMA Solar Technology AG
Maintaining the Sunny String-Monitor-Cabinet
Maintenance Manual
SCWAR-WEN094020
59
3. Check whether there is condensation water in the device.
☑ Wipe out the Sunny String-Monitor-Cabinet, check from where the water intruded the device
and take corrective measures.
4. Check the mounting of the Plexiglass covers above the string fuses for damage and ensure that
it is securely mounted.
5. Check the safety notices on and in the device and replace them if they are damaged or no
longer legible. You can order new labels from SMA Solar Technology AG.
6. Visually check the existing fuses and fuse holders.
7. In addition, check the auxiliary voltage of +55 V at the connection terminals and the plug
connectors, it must be at least +30 V.
8. Check the entries of the connection cables for dirt, damage and sealing.
1 2 3 4 5 6
Z9-X9
L+
L+
Z2-X2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
L-
L-
L-
1 1 2 2 3 3 4 4 5 5
6 6
7 7 8 8
L+
1
2
1 1 2 2 3 3 4 4 5 5
6 6
7 7 8 8
L-
1
2
Z1-X1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
L+
FA
2064706
0002374
Vers.:
A
1
485HCVBP
-0
1
1131
11/07
FA
2064676
0068725
Vers.:C2
2903 06/07
Vers.:
A
1
S
/N
1728
SMU8HV
-DVPB
Ms60-
DC8FS
FA
2064706
0002374
Vers.:
A
1
485HCVBP
-0
1
1131
11/07
FA
2064676
0068725
Vers.:C2
2903 06/07
Vers.:
A
1
S
/N
1728
SMU8HV
-DVPB
Ms60-
DC8FS