3 Installation
26
S0 interface
The S0 pulse output enables, for example, the con-
nection of a large display (Sunways Display) for
displaying the momentary output, the energy yields
and the CO
2
reduction.
You can use the S0 interface on the master if you
want to transmit the entire line yields as a sum to a
large display.
The S0 interface is adjusted via the display on the
inverter. Go to the menu «Settings – Network
– Interfaces».
· Please note that the maximum pulse rate may
not be greater than 15 pulse/sec. Calculate the
pulse rate depending on the size of the solar
system using the following formula:
Pulse rate [pulses/kWh] =
50,000/system size [kWp]
· The pulse rate must be set on your Solar Inverter
and on the large display.
Connection of temperature and irradiation sensor
The optional addition of an irradiation sensor
(model Si-01TC-K from Ingenieurbüro Mencke &
Tegtmeyer) with an integrated PT-100 temperature
sensor for temperature measurement enables the
acquisition of irradiation data and the correspond-
ing module temperature and storage in the internal
data memory as a 5-minute mean value. This addi-
tional measuring device helps analyse the system
output. Based on the values, any errors on the PV
generator, e.g. shading or failure of solar cells, can
be detected.
The sensor is activated via the display. In the menu
«Settings – Network – Interfaces» you can select the
sensor type in the «Irrad.» and «Temp.» field.