User`s manual

Western Reserve Controls, Inc. 1782-JDC User’s Manual
9
4. Hardware Installation and Set-Up
4.1 Overview
The JDC is mounted on an EN50022 DIN rail.
The JDC contains two LED’s to indicate the status of the device and the status of the network.
The device can be connected to the main DeviceNet trunk line or to a drop line via a 5-pin female
plug-style connector. It also has two green LED’s to indicate the presence of activity on the RS485
transmit and receive lines.
All power for the JDC is derived from the DeviceNet power.
4.2 LED Operation
4.2.1 DeviceNet LED’s
A JDC Multiplexer has two LED’s that provide visual status information to the user about the
product and the DeviceNet network. See Tables 5-1 and 5-2 that follow below for how to interpret
LED status indications.
Table 4-1 Module Status LED (labeled MS)
LED State Module Status Meaning
OFF No Power There is no power through DeviceNet.
Green Device Operational JDC is operating normally.
Flashing Green Device in Standby JDC needs commissioning.
Flashing Red Minor Fault Recoverable fault.
Red Unrecoverable Fault JDC may need replaced.
Flashing Red/Green Device Self-Testing JDC is in self-test mode.