Rockwell Automation 2090-CFxxx 2090-Series Motor/Actuator Cable Installation Instructions - Manual (Page 5)

Rockwell Automation Publication 2090-IN050B-EN-P - July 2014 5
2090-Series Motor/Actuator Cables
Power/Brake and Feedback
Cables When installing cable runs between the motor and drive, be careful not to stress
the cable by making bends too sharp. See the table below for bend radius
definitions, and the sections that follow, when routing cables during system
installation.
Table 1 - Motor Power and Feedback Cable Bend Radius Definitions
Install Motor Power/Brake Cables
This figure illustrates how to measure the bend radius and where cable bends can
be made on motor power/brake cables.
Figure 3 - Motor Power/Brake Bend Radius Example
See Table 2 and Table 3 for motor power/brake specifications.
Type of Bend Radius Type of Cable Description
Static bend radius
Standard (non-flex) The static (installation) bend radius and dimension B are seven times the cable diameter:
• Do not begin a static bend inside dimension B.
• Use this measurement when routing the cable in a non-flex application between motor and drive (the bend area).
– The bend area is where standard (non-flex) or continuous-flex cables can be bent to their specified bend radius.
Continuous flex
Continuous bend radius Continuous flex
The continuous bend radius for Bulletin 2090 motor power and feedback cables is 12 times the cable diameter:
• Secure the continuous-flexing area, at least seven cable diameters (dimension B) from each end of the cable, with a
rigid mount that helps protect against cable flexing where it connects to the motor or shield clamp.
• Use this measurement when routing the cable in a continuous-flex application between motor and drive (the
continuous-flexing area).
– The continuous flexing area is where continuous-flex cables can be flexed repeatedly.
B B
D
Bend Area or
Continuous Flexing Area
Cable
Shields
2090-CPBM7DF-
xxAAxx
motor power/brake cable is shown.
Bend Radius Bend Radius
Cable
Diameter