SMA Sunny Tripower CORE2 - Event 448, 449 (Sunny Portal: 4013); Event 450, 451 (Sunny Portal: 4014); Event 452, 453 (Sunny Portal: 4015); Event 454, 455 (Sunny Portal: 4016)

12 Event messages
SMA Solar Technology AG
Operating manualSTP110-60-BE-en-1688
Corrective measures:
• Check whether there is reverse polarity on the corresponding PV string. If so, open the DC
switch and adjust the polarity if the solar irradiation is low and the string electrical current is
below 0.5A.
• If the fault cannot be rectified using the indicated corrective measures, contact Service.
12.2.63 Event 450, 451 (Sunny Portal: 4014)
Event message:
• String [#] reverse polarity
Corrective measures:
• Check whether there is reverse polarity on the corresponding PV string. If so, open the DC
switch and adjust the polarity if the solar irradiation is low and the string electrical current is
below 0.5A.
• If the fault cannot be rectified using the indicated corrective measures, contact Service.
12.2.64 Event 452, 453 (Sunny Portal: 4015)
Event message:
• String [#] reverse polarity
Corrective measures:
• Check whether there is reverse polarity on the corresponding PV string. If so, open the DC
switch and adjust the polarity if the solar irradiation is low and the string electrical current is
below 0.5A.
• If the fault cannot be rectified using the indicated corrective measures, contact Service.
12.2.65 Event 454, 455 (Sunny Portal: 4016)
Event message:
• String [#] reverse polarity
Corrective measures:
• Check whether there is reverse polarity on the corresponding PV string. If so, open the DC
switch and adjust the polarity if the solar irradiation is low and the string electrical current is
below 0.5A.
• If the fault cannot be rectified using the indicated corrective measures, contact Service.