Connection
21
6-6
Conformity to EMC
Effective measures must be taken against the EMI that the motor and driver may give to adjacent control-system
equipment, as well as the EMS of the motor and driver itself, in order to prevent a serious functional impediment in
the machinery. The use of the following installation and wiring methods will enable the motor and driver to be
compliant with EMC.
Oriental Motor conducts EMC testing on its motors and drivers in accordance with “Example of installation and wiring”
on p.22. The user is responsible for ensuring the machine’s compliance with the EMC, based on the installation and
wiring explained below.
This equipment is not intended for use in residential environments nor for use on a
low-voltage public network supplied in residential premises, and it may not provide
adequate protection to radio reception interference in such environments.
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Connecting the main power supply and the control power supply
Use DC power supplies compliant with EMC for he main power supply and the control power supply. Use shielded
cables to wire and ground as short as possible. Refer to “Prevention of noise propagation” on p.20 for how to
ground the shielded cable.
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Ferrite core
Install the following ferrite core (or equivalent) to the places shown in “Example of installation and wiring” on p.22.
Part No.: ZCAT3035-1330 (TDK Corporation)
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Connecting the motor cable
Use an Oriental Motor connection cable when extending the wiring distance between a motor and a driver. Refer to
p.63 for the model name.
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Connecting the signal cable
Refer to “Prevention of noise propagation” on p.20.
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Grounding method
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Wires used to ground the motor must be as thick and short as possible so that no potential difference is generated
between the grounding points.
•
Choose a large, thick and uniformly conductive surface for the grounding point.
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Make sure to ground the Protective Earth Terminal of the motor.
