SMA POWER BALANCER - Manual (Page 25)

SMA America, LLC Testing the function
Installation Guide SBUS-PowBal-IUS102810 25
7 Testing the function
Check if the SMA Power Balancer operates correctly:
1. Select the "PhaseGuard" setting of the
"PowerBalancer" parameter for all three inverters.
2. Check whether all inverters in the group are feeding
the grid normally.
☑ If the green LED lights up steadily or if the
following display message appears, proceed
with point 3.
or
☑ If all inverters in this group show the adjacent
display message: Check the installation of the
SMA Power Balancer and contact the SMA
Serviceline if necessary.
3. Switch off the line circuit breaker for one of the
three inverters.
☑ The inverter with a deactivated line circuit
breaker indicates a grid voltage showing
following display message ("Bfr" and "Srr" are
irrelevant).
☑ The remaining inverters then also disconnect
from the grid showing following display
message.
☑ Both inverters subsequently switch to
"Balanced" mode.
☑ If the inverters react as described above, the
functionality test has been completed successfully.
Otherwise, check the configuration.
4. If applicable, reset the "PowerBalancer" parameter
to the desired setting in all inverters.
5. Switch on the line circuit breaker again.
6. The functionality test has been completed.
E-today 0Wh
Mode MPP
Disturbance
PowerBalance
Disturbance
Vac-Bfr
Disturbance
PowerBalance