OVERVIEW

Official designation: Allen-Bradley 20-COMM-P (PowerFlex, Profibus Communication Adapter)

Role/Application: Adapter for PowerFlex 70 and 700 drives enabling Profibus DP protocol communication and multi-rate data transfer up to 12 Mbps.

KEY SPECS SUMMARY

Power: 350 mA at 5V DC from host drive

Interfaces / Ports: One DB9 SUB-D, 32 nodes maximum

Indicators: PORT status, MOD status

Operating Temp: Minus 10 degrees C to 50 degrees C

Platform / Compatibility: PowerFlex 70, 700, 750 Series drives

Limit: 5 percent to 95 percent relative humidity non-condensing

Lifecycle: Refer to the latest manufacturer manual.

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the lowest selectable data rate supported by the 20-COMM-P adapter?

A: The adapter supports a minimum communication data rate of 9.6 kbps.

Wiring & Installation:

Q: How is the node address for the Profibus network typically set on this module?

A: The node address and data rate are set using switches on the adapter, which can be disabled for parameter settings.

Troubleshooting & Compatibility:

Q: What action should be taken if the adapter status indicators are not green after applying power?

A: If the status indicators are not green, refer to the manual for troubleshooting the drive and network connections.

Replacement & Upgrades:

Q: Is a firmware update required for the 20-COMM-P to support PowerFlex 750-Series drives?

A: Firmware revision v1.006 and higher added support for PowerFlex 750-Series drives with some limitations.