Sunway NT 2600 - Manual (Page 60)

· Sensor interface
An irradiation sensor with integrated
temperature sensor can be optionally con-
nected to the relevant interface. This
allows first time users to quickly grasp the
mode of functioning of their PV system,
and facilitates monitoring of the PV
system for professionals.
· AFI universal sensitive residual current
device
The universal (DC and AC) sensitive residu-
al current device (AFI) monitors the solar
system for residual currents. To do this,
it disconnects the solar inverter from the
grid by means of a relay as soon as a resi-
dual current occurs on the PV generator
side or on the AC side in the solar inverter.
After cutoff by the relay and as soon as
the residual current has stopped, the AFI
automatically attempts to reconnect the
solar inverter to the grid. The AFI of the
Sunways solar inverter complies with
standard DIN V VDE V 0126-1-1.
In addition, the AFI of Solar Inverters NT
2600, NT 4000 and NT 6000 has an absolu-
tely time-independent effective value
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· Grid protection
The grid protection is a powerful relay
which ensures reliable grid disconnection
in the case of error and for night switch-
off. This relay fulfils the requirement for
trouble-free grid disconnection.
· Microcontroller
As well as system management, the
efficient microcontroller undertakes
additional tasks, such as saving data
and communication.
· LCD display
Important information for the operator
about the system operation and status is
displayed on an LCD display of 2 x 16
characters.
· RS 485 and RS 232 interfaces
The two RS 485 and RS 232 interfaces
installed as standard serve for communi-
cation with the solar inverter and the PV
system. The system can be visualised via
the Sunways NT Monitor software.