Solar Lattice

Measurement

Battery voltage above charge target

ID
meas:battery-voltage-above-charge-target
IRI
https://solarlattice.org/kb/meas/battery-voltage-above-charge-target
Status
active
Also known as
BatVtgHi, VBATMAX, BatVtgHiWarn, Battery overvoltage

On Sunny Island battery inverters, event F 208 BatVtgHi means the measured battery voltage is higher than the target charge voltage. The device at L2 reports it. To confirm it, compare the battery voltage value BatVtg with the charging voltage target value BatChrgVtg on the device display or in the parameter list. Related messages report that the battery voltage at the master or at a slave is above the permissible measurement range. For those messages, the manual says to check whether parameter 120.02 BatVtg reads above 65.0 V. If it does, review the DC source settings and make sure the battery capacity is large enough. For F 208, check that all DC sources are configured correctly and that all SMA inverters use the country data set for stand-alone grid operation. Two warning variants exist. One flags high battery voltage that the device itself did not generate. The other flags a voltage that is only temporarily too high.

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