Rockwell Automation HPK-Series Motor Encoder Replacement Installation Instructions - Manual (Page 5)

HPK-Series Motor Encoder Replacement Kit 5
Rockwell Automation Publication HPK-IN002C-EN-P - May 2012
Required Parts
To install the HPK-Series Motor Encoder Replacement Kit, you should plan to provide the
following parts. Where possible, reuse screws and other hardware.
•
Fixing screws
•
Electrical tape
Replacing Encoders
Review these sections to become familiar with the steps before you begin to replace your encoder.
Preparing for Installation
Always use equipment and installation practices that promote electromagnetic compatibility
(EMC) and safety. This requires that both the encoder housing and the encoder connectors are
grounded at the motor frame. A metallic connector housing provides the encoder cable with a
physical opening and electrical shielding from the motor and the drive interface cable.
•
Secure the spring mounting plate, on which the encoder is mounted, to the motor frame.
•
Attach the connector housing to the fan shroud or another metal component on the
HPK motor with the four mounting screws.
These connections provide a secure mechanical mount and an electrical ground with the motor
frame.
HPK-Series Encoder Replacement Kit Overview
Use high-frequency (HF) bonding techniques to connect the encoder, feedback connector,
motor housing, and machine frame. HF bonding techniques creates a low-impedance return
path for high-frequency (HF) energy and reduce electrical noise. Refer to the System Design for
Control of Electrical Noise Reference Manual, publication
GMC-RM001 , to better understand
the concept of electrical noise reduction.
IMPORTANT Reuse existing parts, such as screws and other hardware.
Always store parts as you remove the encoder.
IMPORTANT One of two possible versions of the encoder is installed on your HPK motor.
Use the removal instructions appropriate for the encoder installed on your HPK motor.
Fan Housing or Metal Shroud
Shielded Encoder Cable
Connector Housing (4 mounting screws)
Feedback Connector
Feedback Cable from Drive Encoder Housing
Spring Mounting Plate
Fan Housing
or Metal Shroud