SMA SUNNY BOY 3.8-US User Manual page 44

8 Troubleshooting
Event number
10253
10254
10255
10282
10283
50 SB30-77-1SP-US-40-BA-en-11
Message, cause and corrective measures
[Interface]: connection speed goes to [100 Mbit / 10 Mbit]
The data transfer rate has changed. The cause for the status [10 Mbit] can be
a defective plug, a defective cable or the pulling or plugging of the network
connector.
Corrective measures if the status is [10 Mbit]:
• Ensure that with an Ethernet connection, the network cable and the
network connector are not damaged and that the network connectors are
correctly plugged.
• Ensure that the DHCP server (router) and any network switches are
signalizing correct operation.
[Interface]: duplex mode goes to [Full / Half]
The duplex mode (data transfer mode) has changed. The cause for the status
[Half] can be a defective plug, a defective cable or the pulling or plugging of
the network connector.
Corrective measures if the status is [Half]:
• Ensure that with an Ethernet connection, the network cable and the
network connector are not damaged and that the network connectors are
correctly plugged.
• Ensure that the DHCP server (router) and any network switches are
signalizing correct operation.
[Interface]: Network load OK
The network load has returned to a normal range after being busy.
[User group]-Login via [protocol] locked
After several incorrect login attempts, login has been blocked for a limited
time. In this case, the User login will be blocked for 15 minutes, the
Grid Guard login for 12 hours.
Corrective measures:
• Wait until the given time has expired and then retry login.
WLAN module faulty
The WLAN module integrated in the inverter is defective.
Corrective measures:
• Contact the Service (see Section 11 "Contact", page 67).
SMA Solar Technology America LLC
User Manual