Phoenix Contact SCK-M-I-4S-20A Handleiding (128 Pagina's)

Handleiding

Introduction

105608_en_02 PHOENIX CONTACT 9

1.4 Product overview

SOLARCHECK is a modular monitoring system for photovoltaic systems. It consists of a

communication module (SCK-C-MODBUS, item no. 2901674) and various measuring mod-

ules for current and voltage measurements.

The communication module collects the data from all connected measuring modules and

transfers it to a higher-level controller via Modbus/RTU using an RS-485 connection.

At the same time, the connected measuring modules are supplied with power via the communi-

cation cable (SCK BUS) between the measuring modules and the communication module.

Figure 1-1 SOLARCHECK topology

1.5 Area of application

The SOLARCHECK device range is designed for use in medium to large photovoltaic sys-

tems and photovoltaic power stations. Currents up to 20 A, reverse currents up to -1 A, and

voltages up to 1500 V can be acquired. Even at the lowest level of utilization (one commu-

nication device with maximum assignment of measuring device connections), it is possible

to monitor 64 strings of a photovoltaic system.

With an average string power of approximately 4 kW, it is therefore possible to monitor a

segment of approximately 250 kW with just this basic design.

Typically, the communication devices in a photovoltaic system are positioned centrally in a

control room. The measuring modules are located in string combiner boxes in the field. The

internal communication protocol enables the connected measuring modules to be supplied

with power via the communication cable. As a result, no additional power supply is required

for the measuring devices in the field.

ILC 150 ETH

Order-No.: 2985330

HW/FW: 00/100

MAC Addr.: 00.A0.48.04.09.C0

AUTOMATIONWORX

MRESET

RESET

RUN/PROG

PRG

STOP

1.1 2.1

1.2 2.2

1.3 2.3

1.4 2.4

1.1 2.1

1.2 2.2

1.3 2.3

1.4 2.4

1.1 2.1

1.2 2.2

1.3 2.3

1.4 2.4

1.1 2.1

1.2 2.2

1.3 2.3

1.4 2.4

LINK

Compact controller

Communication module

(for up to 8 measuring modules)

Measuring module for

current (8 strings)

Measuring module for

current (8 strings)

Measurement and

control technology

Data cable

Modbus

PV ﬁeld

Measuring module for

current (4 strings)

Solar cablesData cables

Measuring module

for voltage

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