Emerson E300 Series Design Manual page 101

Safety Product Mechanical
information information installation
4.17.4 Grounding of the drive and EMC filter
Connect the shield of the motor cable to the ground terminal of the motor frame using a link that is as short as possible and not exceeding 50 mm
°
(2 in) long. A complete 360 termination of the shield to the terminal housing of the motor is beneficial.
From an EMC consideration it is irrelevant whether the motor cable contains an internal (safety) ground core, or if there is a separate external ground
conductor, or where grounding is through the shield alone. An internal ground core will carry a high noise current and therefore it must be terminated
as close as possible to the shield termination.
Figure 4-33 Grounding the drive, motor cable shield and filter
Figure 4-34 Grounding the motor cable shield
E300 Design Guide
Issue Number: 1
Electrical Getting
User Menu A Commissioning
installation started
Motor cable shield
(unbroken) electrically
connected to and held
in place by grounding
clamp.
Advanced
Diagnostics Optimization CT MODBUS RTU Technical Data
Parameters
Ensure direct
metal contact
at drive and
filter mounting
points (any
paint must be
removed).
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