Installation Manual Owner's manual

Publication 2098-IN003E-EN-P — April 2004

2-40 Ultra3000 Connector Data

Understanding Motor

Encoder Feedback

Specifications

The Ultra3000 can accept motor encoder signals from the following

types of encoders:

• Incremental encoders with TTL outputs, with or without Hall

signals

• Sine/Cosine encoders, with or without Hall signals

• Intelligent absolute encoders

• Intelligent high-resolution encoders

• Intelligent incremental encoders

Note: The intelligent absolute, high-resolution, and incremental

encoders are available only in Allen-Bradley motors.

AM, BM, and IM Inputs

AM, BM, and IM Input encoder signals are filtered using analog and

digital filtering. The inputs also include illegal state change detection.

Refer to Figure 2.37 for a schematic of the AM, BM, and IM inputs.

Figure 2.37

Schematic of the Motor Encoder Inputs

10k Ω

+5 V

1k Ω

56 pF

10k Ω

1k Ω

10k Ω

1k Ω

100 pF

56 pF

AM and BM Channel Inputs

IM Channel Input

Ultra3000 Drive Ultra3000 Drive