Sunny Boy User Manual

6 Troubleshooting
SMA Solar Technology AG
User Manual SBxx-US-1XP-41-BA-en-11 59
Event number Message, cause and corrective measures
9034
Error in Rapid Shutdown System
This message can have the following causes:
• The Rapid Shutdown Function was not correctly configured.
• The PV generator could not be correctly disconnected. Voltage can be
applied to the DC inputs of the inverter.
• The standby voltage of all PV module switches of a string is > 30V.
Corrective measures:
• Check the configuration of the Rapid Shutdown function and ensure that
the operating mode selected is selected according to the DC
disconnection unit used.
• Check the functionality of the PV module switches.
• Check the standby voltage of the PV module switches used and ensure
that the standby voltage of all PV module switches of a string < 30V.
9037
Generator connection not carried out
The PV module switches did not connect the PV generator.
Corrective measures:
• Check the functionality of the SunSpec-compliant PV module switches.
9202
SPS AC overvoltage
An AC source has been connected to the outlet for secure power supply oper-
ation.
Corrective measures:
• Check the connection at the SPS slots, and make any necessary
corrections.
9203
Short circuit in the SPS power outlet
The maximum initial load has been overshot or the appliance's initial current is
above the maximum permissible load current of the terminal for secure power
supply operation for more than 5s.
Corrective measures:
• Reduce the load at the terminal for secure power supply operation.
• If necessary, select an appliance with a lower initial current.