esera automation 1-Wire Hub III DC User Manual

Art. No. 11322
 Central power supply for 1-Wire
ESERA Modules
 18 – 36 VDC power supply (adapted to PLC
typical 24 VDC)
 Filtered power supplies for trouble-free bus
supply
 Top-hat rail case for switchboard assembly
 Top-hat rail case, width 71 mm
 Monitoring of output voltages and currents via
1-Wire module
 Screw-based connection
 Easy to assemble
 Energy efficient design with high efficiency
1

Introduction

Before you start assembling the 1-Wire Hub III DC and before you take the device into operation, please
read this assembly and operating instruction carefully to the end, especially the section referring to the safety
notes.
2

Product description

The 1-Wire Hub III DC serves as the central power supply within a 1-Wire network. The 1-Wire Hub III DC is
providing the required bus voltage (5 V / 12 V) and also distributes the 1-Wire data line. The 1-Wire Hub III DC is
normally required only once in a network and is connected directly to a 1-Wire Bus Coupler or 1-Wire Controller.
Due to the input voltage range of 18 – 36 V, the device is ideally adapted to the system environment of PLC
controls, for 24 VDC supply.
To operate the 1-Wire Hub III, an upstream system power supply, providing the input voltage of 24 V, e.g. a DIN
rail power supply, is necessary.
The 1-Wire Hub III DC is equipped with a measuring function for the output voltage and current of the 5 V and 12
V output by default. This is measured by an integrated 1-Wire module (DS2450). Due to voltage- and current
measurements, issues with the supply of a 1-Wire network, such as overload or short circuit, may be detected at
an early stage.
The 1-Wire Hub III DC is designed for a broad supply range of 18 – 36 VDC (nominal 24 VDC).
As an "emergency power supply" for a 1-Wire network, the 5 V input voltage is provided in only one direction to
the output, even when there is no 24 V supply voltage available. This is to ensure a minimum function of the
1-Wire network, even in the event of failure of the 24 V main supply. In this operating mode the 12 V voltage is
not available.
Output power of the 1-Wire Hub III DC is designed to hold up to 40 modules.
8 devices of 1-Wire air quality sensors (11127) and 8 devices of 1-Wire 8-way switch modules (11220 (8x8A) or 6
devices of 11228 (8x16A)) can be connected.
The device is designed for DIN top-hat rail mounting in a switchboard.
All rights reserved. Reproduction as well as electronic duplication of this user guide, complete or in part, requires the written consent of
ESERA GmbH. Errors and technical modification subject to change. ESERA GmbH, ESERA-Automation 2020
www.esera.de
User Guide
1-Wire Hub III DC
i
Network and all
11322 V2.0 R1.1 Manual Page 1 of 6