User Manual
20-COMM-H RS-485 HVAC Adapter User Manual
Publication 20COMM-UM009D-EN-P
Chapter 1
Getting Started
The adapter is a communication option intended for installation into a
PowerFlex 7-Class drive. It can also be used with other Allen-Bradley
products that support a DPI™ (Drive Peripheral Interface) adapter.
Components
Figure 1.1 Components of the Adapter
Topic Page
Components
1-1
Features 1-2
Compatible Products 1-2
Required Equipment 1-3
Safety Precautions 1-3
Quick Start 1-5
Status Indicators 1-6
Item Part Description
➊
Status Indicators Four LEDs that indicate the status of the DPI, the adapter, and
network connection. Refer to Chapter 8
, Troubleshooting.
➋
DPI Connector A 20-pin, single-row shrouded male header. An Internal Interface
cable is connected to this connector and a connector on the
drive.
➌
Terminal Block A 6-screw terminal block connects the adapter to the network.
➍
Node Address Switches Two switches set the node address.
➎
Network Selector Switch Switch selects the network protocol to which the adapter
operates.
➌
➍
➎
➊