Rockwell Automation Publication 2097-UM002D-EN-P - April 2017 47
Kinetix 350 Drive Connector Data Chapter 3
Table 21 - Generic TTL Incremental Specifications
Figure 23 - Generic TTL Incremental, AM and BM Signals
Attribute Value
TTL incremental encoder support 5V, differential A quad B
Quadrature interpolation 4 counts/square wave period
Differential input voltage
(AM, BM, and IM)
1.0…7.0V
DC current draw
(AM, BM, and IM)
30 mA, max
Input signal frequency
(AM, BM, and IM)
5.0 MHz, max
Edge separation
(AM and BM)
42 ns min, between any two edges
Line loss detection
(AM and BM)
Average (AM² + BM²) > constant
Hall inputs
(S1, S2, and S3)
Single-ended, TTL, open collector, or none
AM- or
BM-
1 k
Ω
to A/D Converter
56 pF
56 pF
1 k
Ω
1 k
Ω
AM+ or
BM+
1 k
Ω
10 k
Ω
56 pF
47 pF
26.7 k
Ω
+
+
to AqB Counter
1 k
Ω
10 k
Ω
56 pF
-
-
Kinetix 350 Drive
Shaded area indicates components that are part of the circuit, but support other
feedback device types (not used for Generic TTL incremental support).
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