Rockwell-automation 1769-SDN Compact I/O DeviceNet Scanner Module User Manual de usuario descargar pdf (Pagina 20)

20 Publication 1769-UM009E-EN-P - August 2009

Chapter 2 Quick Start for Experienced Users

What You Need to Do

Follow these steps to get started using the 1769-SDN scanner module.

1. Verify planned system configuration.

a. Ensure system power supply has sufficient current.

The scanner module cannot be located more than four modules away

from the system power supply.

b. Verify that the DeviceNet network has adequate power.

2. Remove power.

Maximum Current Draw

Module 5V DC 24V DC

1769-SDN 440 mA 0 mA

DeviceNet Power Requirements

Module DeviceNet Power Requirements

1769-SDN N.E.C. Class 2

90 mA @ 11V DC, max.

110 mA @ 25V DC, max.

200 mA for 1.5 ms inrush

ATTENTION

Remove power before removing or inserting this module. When

you remove or insert a module with power applied, an electrical

arc may occur. An electrical arc can cause personal injury or

property damage by:

• sending an erroneous signal to your system’s field devices,

causing unintended machine motion.

• causing an explosion in a hazardous environment.

Electrical arcing causes excessive wear to contacts on both the

module and its mating connector and can lead to premature

failure.

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Rockwell-automation 1769-SDN Compact I/O DeviceNet Scanner Module User Manual de usuario Pagina 20