SMA SUNNY TRIPOWER CORE2 Operating Manual page 91

SMA Solar Technology AG
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
Operating manual
12 Event messages
STP110-60-BE-en-16 91