Table of contents 1 Preface 1.1 About this Manual 1.2 Responsibilities 1.3 Revisions 2 Ordering Information 3 Installation of the RIO 425 3.1 Introduction 3.2 Operating Conditions 3.3 Wiring 3.3.1 Power Supply 3.3.2 Communication to the DCU 3.3.3 Generator Current Interface 3.4 Configuration 3.4.1 Configuration from the DCU Web Server 3.4.2 Configuration using the User Interface...
1 Preface 1.1 About this Manual This manual has been published primarily for professionals and qualified personnel. The user of this material is assumed to have basic knowledge in marine systems, and must be able to carry out related electrical work. Work on the low-voltage circuit should only be carried out by qualified and experienced personnel.
2 Ordering Information The Marine Pro covers a wide range of compatible products within both the 200- and 400 Series. Please visit our website for more information. 3 Installation of the RIO 425 This chapter covers installation of the RIO 425. 3.1 Introduction The RIO 425 is a generator interface.
3.4.2 Communication to the DCU The RIO 425 comes preconfigured to communicate with the DCU 410E/408E or DCU 210E/208E in the Auto-Maskin Marine Pro range. It can be used together with other RIO expansion modules on the same RIO link. Only one RIO 425 can be used on a RIO link.
The DCU has an inbuilt termination resistor at its end. When the bus is properly connected, the measured impedance between bus terminals A and B shall be 60 ohm (+/- 5 ohm). Wire Requirement Wires shall have a minimum area of 1.0 mm (16 AWG).
3.5.2 Configuration using the RIO 425 User Interface The RIO 425 can be configured using the small push buttons and display on the front of the unit. Initiate Configuration To enter the configuration menu press the key for 3 seconds. If the icon appears on the configuration screen, the configuration parameters can be edited.
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Press the key to modify the value of the flashing digit. When the desired value is shown on the screen, use the keys to move the edit cursor. key for 3 seconds; the prog icon will stop flashing. To validate the value, press the If the value entered by the user is out of the range of programming values, the programmed value will be deleted and the system will restore it to the last saved value.
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When the desired value is shown on the screen, use the keys to move the edit cursor. To validate the value, press the key for 3 seconds; the prog icon will stop flashing. If the value entered by the user is out of the range of programming values, the programmed value will be deleted and the system will restore it to the last saved value.
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Current Transformer Secondary value The RIO 425 comes preset to a transformer ratio of 5:1, meaning the secondary current varies up to 5A. If necessary, the ratio can be changed to 1:1. Voltage ratio x Current ratio ≤ 300000. Use the key to browse the available options: 1A or 5A.
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