Installation Manual

5 Troubleshooting
SMA Solar Technology AG
Installation ManualEXTANT-US-40-IA-en-1416
5 Troubleshooting
Problem Cause and corrective measures
The radio range has not im-
proved despite the antenna.
The problem can be caused by one of the following:
• The inverter has not recognized the antenna automatically.
• The antenna is not installed correctly or an unapproved
antenna has been used.
• The receiver is placed in the dead spot.
Corrective measures:
• Ensure that the antenna has been recognized by the inverter:
– Log in to the user interface of the inverter as Installer (see
the inverter manual).
– Instantaneous values > Plant communication >
WLAN.
– Check whether the parameter Antenna Typeis set on
External Antenna.
If the value External Antenna is not set, set the antenna
type (see inverter manual).
• Ensure that the antenna of type “EXTANT-US-40” is installed
correctly and that only the supplied antenna cable was used.
• Ensure that the receiver is not placed in the dead spot.