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SMA Solar Technology AG Failure Search
User Manual ExplorerSW12-BEN104013 49
10 Failure Search
Bluetooth connection
No. Problem Cause and solution
1 System search
Connection to the Bluetooth
plant failed.
The connection to the Bluetooth plant is too weak.
Reduce the distance to the devices and try to
reconnect.
There are already 4 masters connected to the
Bluetooth plant.
Remove one master and try to reconnect.
There are already 2 participators connected to the
device through which you want to connect to the
Bluetooth plant.
Select another device or remove another
communication device, and try to reconnect.
2 System search
The displayed device names
and NetIDs are not current.
Depending on the Bluetooth stack in use, it is
possible that changes to the NetID or the device
name are not correctly recognized at an inverter.
Proceed as follows:
1. If present, close the Bluetooth stick software.
2. Briefly remove and reinsert the Bluetooth stick.
3. If required, start the Bluetooth stick software.
4. Carry out system search in Sunny Explorer again.
3 System search
The device address is displayed,
but the device name is not
displayed.
Sunny Explorer has not finished reading the device
name from the device.
Select "Repeat search" so that Sunny Explorer
updates the device name.
4 Inverter is not accessible
After setting parameters for
communication via Bluetooth,
the inverter is not accessible for
a longer period.
When setting parameters that regulate the
Bluetooth connection (e.g. parameters for the
transmitting power and country parameters), the
communication via Bluetooth is interrupted for some
time because the inverter is carrying out a reboot of
the communication interface.
Wait until the inverter has completed a restart.
The inverter is then accessible again.
49


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