Am, bm, and im inputs, Am, bm, and im inputs -25 – Rockwell Automation 2098-IPD-xxx Ultra5000 Intelligent Positioning Drives Installation Manual User Manual
Page 51

Publication 2098-IN001E-EN-P — April 2002
Ultra5000 Connector Information
2-25
Understanding Motor
Encoder Feedback
Specifications
The Ultra5000 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
for a schematic of the AM, BM, and IM inputs.
Figure 2.13
Schematic of the Motor Encoder Inputs
10k W
10k W
+5 V
1k W
1k W
+
-
56 pF
56 pF
10k W
1k W
1k W
10k W
1k W
1k W
1k W
1k W
1k W
100 pF
+
-
100 pF
56 pF
56 pF
56 pF
56 pF
AM and BM Channel Inputs
IM Channel Input
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