Installation Examples; Example 1; Sck-C-Modbus In The Inverter Station, Current Measuring Module Without Voltage Measurement In The String Combiner Box - Phoenix Contact SCK-C-MODBUS User Manual

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Installation examples

105608_en_00
Here you will find some typical installation examples for medium to large PV systems. The
examples are schematic and simply illustrate a few possible installation options. The mod-
ularity of the Solarcheck system means that many other arrangements and combinations
are possible. Solarcheck is a very flexible system which can be effectively incorporated into
many system designs, making inexpensive solutions possible.
9.1

Example 1

SCK-C-MODBUS installed centrally in the inverter station. Solarcheck current mea-
suring module(s) without voltage measurement installed in the string combiner box
in the PV field.
The traditional arrangement involves installing the communication module at a central loca-
tion, which allows the advantages of the modular system structure to be demonstrated to
very great effect. Therefore, because power is supplied to the measuring devices in the field
via the Solarcheck communication cable, a particularly efficient and inexpensive design for
the power supply of the overall Solarcheck system is possible.
PV field
Figure 9-1 SCK-C-MODBUS in the inverter station, current measuring module without
voltage measurement in the string combiner box
String combiner box
Measuring device
for string current
Installation examples
Inverter station
ILC 150 ETH
Order-No.: 2985330
HW/FW: 00/100
MAC Addr.: 00.A0.48.04.09.C0
AUTOMATIONWORX
MRESET
STOP
RUN/PROG
RESET
1.1 2.1 1.1 2.1 1.1
PRG
1.2 2.2 1.2 2.2 1.2
1.3 2.3 1.3 2.3 1.3
LINK
1.4 2.4 1.4 2.4 1.4
Communication device
Compact controller
(to connect up to
8 measuring devices)
PHOENIX CONTACT
2.1 1.1 2.1
2.2 1.2 2.2
2.3 1.3 2.3
2.4 1.4 2.4
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