SMA Sunny Tripower CORE2 - Page 91

12 Event messages
SMA Solar Technology AG
Operating manual STP110-60-BE-en-16 91
12.2.73 Event 470, 471 (Sunny Portal: 4024)
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.
12.2.74 Event 532, 533 (Sunny Portal: 4013)
Event message:
• String [#] reverse polarity alarm
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.
12.2.75 Event 534, 535 (Sunny Portal: 4014)
Event message:
• String [#] reverse polarity alarm
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.
12.2.76 Event 536, 537 (Sunny Portal: 4015)
Event message:
• String [#] reverse polarity alarm