SMA WEBBOX-BT-20 Installation - Manual (Page 51)

SMA Solar Technology AG Troubleshooting
Installation Manual SWebBox20-IA-en-12 51
2 Inverter is not
accessible. The Bluetooth connection
was interrupted. • Wait until the Sunny WebBox has
automatically re-established the
connection.
Parameters for the Bluetooth
communication were
changed. When setting parameters that regulate the
Bluetooth connection (e.g. parameters for
the radio range and country parameters),
the communication via Bluetooth is
interrupted for some time because the
inverters are carrying out a restart of the
communication interface. This does not
relate to inverters with upgraded
SMA Bluetooth Piggy-Backs.
• Wait until the inverter has completed
a restart. The inverter is then
accessible again.
Inverter with upgraded
SMA Bluetooth Piggy-Back is
in night mode. • Wait until the inverter is again
working in normal operation. The
inverter is then accessible again.
The inverter has not been set
to the NetID of your PV plant
and commissioned. • The inverter must be set to the NetID
of your PV plant and commissioned.
Contact your installer.
3 The Sunny WebBox
displays unknown
inverters. The set NetID is already
assigned by an external
Bluetooth PV plant.
• You must assign the PV plant a free
NetID. Contact your installer.
4 An inverter is
displayed as an
unknown device in
the plant tree. The inverter with integrated
Bluetooth has an old
firmware version
(only for inverters
SB 3000TL-20,
SB 4000TL-20,
SB 5000TL-20).
• Ensure that the inverter with
integrated Bluetooth has the latest
firmware version (see technical
description "Firmware Update with
SD Card" at www.SMA-Solar.com).
The new inverter type is not
detected by the
Sunny WebBox. • Perform own update for the
Sunny WebBox (see page 38).
No. Problem Cause Remedy