SMA America, LLC 5 Troubleshooting
User Manual SB6-11TLUS-BA-eng-BUS121211 33
VacL1-Bfr
VacL2-Bfr,
VacL1-Srr
VacL2-Srr
The DC input voltage is too high or too low on the indicated branch.
The inverter disconnects from the power distribution grid. As soon as the
error has been remedied, the inverter tries to feed into the power
distribution grid again. If the inverter cannot feed into the power
distribution grid after several attempts, the inverter trips the permanent
operation inhibition.
Corrective measures:
• Contact installer.
VdclinkMax The internal hardware monitoring system has detected an overvoltage in
the intermediate circuit of the inverter.
The inverter disconnects from the power distribution grid. As soon as the
error has been remedied, the inverter tries to feed into the power
distribution grid again. If the inverter cannot feed into the power
distribution grid after several attempts, the inverter trips the permanent
operation inhibition.
Corrective measures:
• Contact installer.
VpvMax The DC input voltage is above the set maximum limiting value.
The inverter disconnects from the power distribution grid. As soon as the
error has been remedied, the inverter tries to feed into the power
distribution grid again. If the inverter cannot feed into the power
distribution grid after several attempts, the inverter trips the permanent
operation inhibition.
Corrective measures:
• Turn the rotary switch of the DC Disconnect to the Off position
immediately.
• Contact installer.
Watchdog
Watchdog Srr
The inverter has detected an internal program run disturbance.
The inverter disconnects from the power distribution grid. As soon as the
error has been remedied, the inverter tries to feed into the power
distribution grid again. If the inverter cannot feed into the power
distribution grid after several attempts, the inverter triggers the permanent
operation inhibition.
Corrective measures:
• Contact installer.
Message Cause and corrective measures
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