Orientalmotor aSTEP AZ Series, Руководство пользователя, Страница: 74 / 180

Connection
74
3 DC po
w
er input t
ype
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Our noise suppression products
Check the model names on p.89 and p.90.
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I/O signal cable
This is a shielded cable for good noise immunity to connect the driver and host controller. The grounding wires useful
to grounding are come out from both ends of the cable. The EMC testing is conducted using our I/O signal cable.
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Pulse signal converter for noise immunity
This product converts a pulse signal, which is output from the open collector output, to a pulse signal for good noise
immunity by outputting the pulse signal again from the differential output.
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Surge suppressor
This product is effective to suppress the surge which occurs in a relay contact part. Connect it when using a relay or
electromagnetic switch. CR circuit for surge suppression and CR circuit module are provided.
4-9 Conformity to the EMC
Effective measures must be taken against the EMI that the motor and the driver may give to adjacent control-system
equipment, as well as the EMS of the motor and the 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 the driver to be
compliant with the EMC.
Oriental Motor conducts EMC testing on its motors and drivers in accordance with “Example of installation and wiring”
on p.75
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 noise filter
In large electrically noisy environments, connect a noise filter. Refer to “Noise filter” on p.73 for details.
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Connecting the main power supply and the control power supply
Use DC power supplies compliant with the EMC for the main power supply and the control power supply.
Wire and ground the power supplies over the shortest possible distance using shielded cables. Refer to “Prevention of
noise propagation” on p.73 for how to ground the shielded cables.
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Connecting the motor cable
Use our connection cable when extending the wiring distance between the motor and the driver. Check the model
name on p.85.
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Connecting the signal cable
Refer to “Prevention of noise propagation” on p.73.
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Grounding method
•
The cable used to ground the motor, the driver, and the noise filter must be as thick and short as possible so that
no potential difference is generated.
•
Choose a large, thick and uniformly conductive surface for the grounding point.
• Make sure to ground the Protective Earth Terminals of the motor and the driver. Refer to the p.67 for how to
ground the driver.