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General precaution
To ensure the best anti-interference performance for EMC filter, observe the following precautions in
addition to the installation and wiring in the user manual:
Install the EMC filter and AC motor drive on the same metal plate. Install the AC motor drive on the
EMC filter footprint or install the EMC filter as close as possible to the AC motor drive.
Use the shortest wire possible. Ground the metal plate. Fix the EMC filter cover and AC motor drive
or grounding to the metal plate and make the contact area as large as possible.
Choose suitable motor cable and precautions
Improper installation and choice of motor cable affect the performance of EMC filters. Be sure to observe
the following precautions when selecting motor cable.
Use shielded cable (double shielding is best). Ground the shielding on both ends of the motor cable
with the minimum length and maximum contact area.
Remove any paint on the metal saddle for good ground contact with the plate and shielding (see
Figure 1).
The connections between the motor's shielded cable and metal plate must be correct. Use a
U-shape metal saddle to fix both ends of the motor cable. See Figure 2 for correct connections.
Remove any paint on metal saddle for good ground contact with
the plate and shielding.
saddle
Figure 1
Figure 2
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Chapter 6 Optional Accessories | IED-S
the plate with grounding
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