Rockwell Automation 4100-EF04_EF08 4 or 8 Way Encoder Buffer Unit Installation and Setup Manual - Manual (Page 18)

Publication 4100-IN054B-EN-P - January 2001
2-2 Installation
The following safety points must be observed when installing the unit:
•
The 24V DC supplies must be electrically isolated from all other
supplies with higher potentials.
•
The 0V (common) side of the 24V DC supply must be connected
to a safety ground.
•
The unit is intended for installation and use within an electrical
control cabinet in a normal industrial environment.
Mounting the Encoder
Buffer Unit The Encoder Buffer Unit is mounted onto a DIN rail using the
mounting feet on the back of the board.
Figure 2.1 Encoder Buffer Unit DIN Rail Mounting Foot
Typical Applications This section illustrates some typical applications for the Encoder
Buffer Unit. Although the 4 channel unit is shown in the diagrams, all
applications apply equally to the 8 channel unit. A range of cables and
other accessories are available for use with this product – see the table
in Appendix B - Accessories.
The following diagram shows two units connected in cascade. The
cable, which connects P4 (first unit) to P2 (second unit), must join
only the following pins: 1, 2, 3, 4, 5, 6, 10 &15.
IMPORTANT
System designers should take care to avoid long
encoder cable runs when using a 5V encoder. If
cable volt drop is a problem, the use of a 12V
encoder is recommended.
64 mm