Determining your feedback connections – Rockwell Automation 8720SM High Performance AC Induction Motors User Manual

Page 10

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Publication 8720SM-IN001A-EN-P — February 2003

10

8720SM High Performance AC Induction Motors

Figure 1
8720SM-005S1BASx
Thru -093S6TASx Motors

2. Connect the shield to both the motor ground and the PE ground

on the drive with an 6 mm

2

(AWG 10) or larger conductor. Refer to

the 8720MC High Performance Drive Installation Manual
(publication 8720MC-IN001x-EN-P) for the PE ground terminal on
the 8720MC drive.

Determining Your Feedback Connections

Refer to the following table to determine the motor/integrated
feedback device combination.

These feedback devices provide precision servo performance for both
spindle and power servo applications. The motor feedback cable
(2090-CDNFDMP-Sxx) shown in Figure 2 applies to the
8720SM-xxxxxxxS1, S2, and S4 motor configurations.

U/T1

V/T2

W/T3

Ground Bolt

Rotatable Conduit Box

ATTENTION

!

Connect an appropriate equipment grounding
conductor to the 8720MC drive ground
terminal, the motor frame, the transformer
enclosure if used, the drive electrical enclosure,
and an appropriate grounding electrode.
Failure to observe these precautions could
result in severe bodily injury or loss of life.

Motor

Encoder Type

Control Type

8720SM-xxxxxxxS3 and -xxxxxxxS4

Incremental sine/cosine

Analog

8720SM-xxxxxxxS1

Single-turn absolute feedback

SERCOS

8720SM-xxxxxxxS2

Multi-turn absolute feedback

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