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External control and alarms – Emerson DC-DC Converter Module Mounting Shelf DCS4830 User Manual

Page 6

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SAG584622000

System Application Guide

Issue AB, November 18, 2009

Spec. No. 584622000 (Model DCS4830)

Page 6 of 17

This document is property of Emerson Network Power, Energy Systems, North America, Inc. and contains confidential and proprietary information owned by Emerson Network Power, Energy

Systems, North America, Inc. Any copying, use, or disclosure of it without the written permission of Emerson Network Power, Energy Systems, North America, Inc. is strictly prohibited.

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External Control and Alarms

Features

♦ An external control and alarm circuit card is located behind the shelf’s top front access panel. This circuit

card provides three sets of Form C relay contacts for external alarms, plus an ESTOP input. A terminal
block is provided on the circuit card for customer connections.

Restrictions

Terminal block wire size capacity is 14 to 26 AWG.

Relay contacts are rated for 1A at 30VDC or 0.3A at 60VDC.

Relays are energized for normal operating conditions and de-energized for an alarm condition.

Ordering Notes

1) Recommended Wire Size: 22 AWG for Loop Lengths Up to 200 ft.

18-20

AWG

for

Loop

Lengths

Over

200

ft.