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6
System monitoring
6.1 General information
The basis for the system monitoring is the data log-
ger integrated in the NT Solar Inverter. The Solar
Inverters of the NT series are equipped with a broad
range of monitoring options for your solar system:
· The Sunways Browser offers the display of
instantaneous values, stored operating data and
settings.
· With active alerting information about faults in
the solar system can be sent to a selected recipi-
ent via e-mail.
· With the Sunways Portal connection the NT Solar
Inverter can send the operating data of your
solar system to the Sunways Portal daily without
additional hardware. This enables you to track
your yields via the Internet.
To enable access to the system monitoring data, the
Solar Inverter must be networked via the Ethernet
connection. Three different networking options are
available:
· Direct connection via an Ethernet cable (see
chapter 6.3 Direct Ethernet connection, page 58)
or internal network (see chapter 6.6 Connection
via an existing Ethernet network, page 62)
With a direct connection or an internal network
without gateway to the Internet the Solar Inverter is
unable to send e-mails. Portal connection and active
alerting is therefore not possible.
· Connection via the Internet, e.g. connection of
the Solar Inverter to a DSL connection (see chap-
ter 6.7 Remote access via a DSL router, page 63)
· Connection via a Sunways Modem (see chapter
6.8 Connection via the Sunways Modem, page 63)
6.2 Integrated data logger
The integrated data logger of the NT Solar Inverter
stores the operating data of your solar system. In
addition to 5-minute mean values, energy yields are
also stored as 5-minute, daily, weekly, monthly and
annual values. Up to 200 status changes (warnings
and errors with start and end) are also stored. Each
data record contains the data and time. The data
logger is designed as a circulating memory, i.e. the
respective oldest data are overwritten with new
data.
Operating data (5-min. mean values)
Number
Value
4500
DC current
4500
DC voltage
4500
AC current
4500
AC voltage
4500
AC output
4500
Device temperature
4500
Module irradiance (optional)
4500
Module temperature (optional)
With this data memory volume approx. 30 days’
worth of values can be stored before the first value
in the ring buffer is overwritten again.
Energy yields (for 20 years except for minute
values)
Number
Value
4500
5-minute yield
7300
Daily yield
250
Monthly yield
20
Annual yield
1
total yield since commissioning
Status messages
Number
Value
200
Status changes