OVERVIEW

Official designation: Allen-Bradley 20-COMM-I (PowerFlex 70, Interbus Adapter)

Role/Application: Embedded communication module providing an Interbus network interface for PowerFlex drives, enabling precise control and status data exchange for distributed automation applications.

KEY SPECS SUMMARY

Power: 5 Volts DC, supplied by host drive

Interfaces / Ports: 20-pin DPI connector, Bus In 6-pin connector, Bus Out 7-pin connector

Indicators: Five LEDs for Port, MOD, Net A, Net B, and drive status

Operating Temp: Refer to the latest manufacturer manual.

Platform / Compatibility: PowerFlex 70, 700, 7000 drives supporting DPI

Limit: Maximum data rate is 500 Kbaud

Lifecycle: Refer to the latest manufacturer manual.

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the maximum data communication rate supported by the Interbus adapter?

A: The module supports data transfer rates up to 500 Kbaud on the Interbus network.

Wiring & Installation:

Q: Which connectors are used to interface the module with the Interbus network and the drive?

A: The adapter uses a 20-pin DPI connector to the drive and 6-pin Bus In and 7-pin Bus Out connectors for Interbus.

Troubleshooting & Compatibility:

Q: What action can the module initiate when communication disruptions occur on the network?

A: The adapter supports user-defined fault actions to determine the drive's response to network communication disruptions.

Replacement & Upgrades:

Q: Can the adapter be used to configure the host drive parameters?

A: Yes, configuration tools, including the drive's LCD Operator Interface Module, can be used to configure the module and connected drive.