Operation, Chapter, General – Rockwell Automation 4100-EF04_EF08 4 or 8 Way Encoder Buffer Unit Installation and Setup Manual User Manual
Page 23: Indicators, Inputs and outputs

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Publication 4100-IN054B-EN-P - January 2001
Chapter
3
Operation
General
Your Encoder Buffer Unit is fitted with a range of indicators, I/O ports
and links to allow easy configuration and use. This section explains
the function and operation of these and provides additional technical
data where appropriate.
Indicators
Two green LED indicators are provided on the Encoder Buffer Unit
front panel to give you at-a-glance information regarding the status of
the Encoder Buffer Unit. When they are both lit the encoder power
supply are healthy.
Inputs and Outputs
The following digital I/Os are provided with the Encoder Buffer unit.
The only difference between the 4 Way and the 8 Way is the number
of Follower Outputs available.
Master Input
The Master input (P2) receives the signal from the master encoder or
other peripheral equipment. It has a 15 way male high density D
socket that connects the Master Encoder cable to the Encoder Buffer
Unit.
The following table shows the pin outs for the connector.
Table 3.A Master Connector Pin Layout
Pin Number
Signal Name
1
A+
2
A-
3
B+
4
B-
5
I+ (Z+)
6
Encoder Return
7
Encoder Return
8
Encoder Supply
9
Encoder Supply
10
I- (Z-)
11*
Motor Thermal