2 grounding the drive – Rockwell Automation SP600 User Manual Version 3.0 User Manual

Page 64

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5-4

SP600 AC Drive User Manual

5.2

Grounding the Drive

If the supply system is grounded, the drive Safety Ground - PE
terminal must be connected to system ground. Ground impedance
must conform to the requirements of national and local industrial
safety regulations and/or electrical codes. The integrity of all ground
connections should be periodically checked.

For installations within a cabinet, a single safety ground point or
ground bus bar connected directly to building steel should be used.
All circuits including the AC input ground conductor should be
grounded independently and directly to this point/bar.

Safety Ground - PE

This is the safety ground for the drive that is required by code. This
point must be connected to adjacent building steel (girder, joist), a
floor ground rod or bus bar (see figure 5.3 and figure 5.4).
Grounding points must comply with national and local industrial
safety regulations and/or electrical codes.

Shield Termination - SHLD

The SHLD terminal located on the Cable Entry Plate provides a
grounding point for the motor cable shield. Refer to figure 5.1 or
figure 5.2 for location.

The motor cable shield connected to this terminal on the Cable
Entry Plate (drive end) should also be connected to the motor frame
(motor end). Use a shield-terminating or EMI clamp to connect
shield to this terminal.

When shielded cable is used for control and signal wiring, the shield
should be grounded at the source end only, not at the drive end.

!

ATTENTION: The user is responsible for conforming with all
applicable local, national, and international codes. Failure to
observe this precaution could result in damage to, or
destruction of, the equipment.

Figure 5.3 – Typical Grounding

U (T1)
V (T2)

W (T3)

R (L1)
S (L2)

T (L3)

PE

SHLD

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