Eaton RM3-400-0330 Installation And Operation Manual

Contents

RM3-400/410/420 Series Installation and Operation Guide14 Copyright © 2007-2010 Eaton Corporation. All Rights Reserved.IPN 997-00012-62E June 2010Installation TasksBefore starting the installation, review the following information:• Required Equipment and Tools on page 71• Warnings and Cautions on page 10• Inspecting the Equipment and Reporting Damage on page 11Complete the Installation tasks in the following order:Task Description Reference1 Check the AC Supply and Grounding See details on page 142 Move Mounting Brackets (if required) See details on page 163 Mount the RM3-400/410/420 in the Rack See details on page 174 Connect Input/Output Cabling (some models only) See details on page 195 Connect Optional External I/O Module (some models only) See details on page 216 Connect Mid-point Monitoring (if required - SC200 only) See details on page 227 Interconnect RM3-400 (if used as an extension power shelf) See details on page 238 Connect the Output Cables See details on page 249 Connect to the AC Supply Point See details on page 25For installation of external communications see Communications Options in the SystemController Operation Handbook.Task 1 - Check the AC Supply and GroundingIt is important that the ac supply for the RM3-400/410/420 dc power system includes thecorrect levels of protection.Step 1 - High ac voltage protection at the site1 Check if the ac voltage is expected to exceed 275V (L-N or L1-L2).2 If so, then it is strongly recommended that an external high voltage protectionunit (HVPU) be installed. This will automatically disconnect the ac at highvoltage and reconnect it at normal voltage.3 Install the HVPU as in the following diagram.4 Connect the High VAC alarm output to one of the Digital Inputs on the I/OInterface Board (see the diagram on page 67 for location). The High VAC alarm signal lines must be isolated from the ac supply by a voltage-free relay contact.