Installing And Wiring In Compliance With Emc Directive - Oriental motor AZ series Operating Manual

Connection
 Noise suppression parts (accessories)
Refer to p.54 for accessories.
 Driver cable
This cable is a shielded cable for good noise immunity to connect the driver and controller. The ground wires useful to
grounding are provided at both ends of the cable. The EMC measures are conducted using the Oriental Motor driver
cable.
 Pulse signal converter for noise immunity
This is a noise fi lter for pulse signal lines. It eliminates the noise of the pulse signal and changes the pulse signal to the
line driver type.
 Surge suppressor
This product is eff ective 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.
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Installing and wiring in compliance with EMC Directive

Eff ective 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 the EMC directive. Refer to p.8 for the applicable standards.
Oriental Motor conducts EMC measurements on its motors and drivers in accordance with "Example of motor and
driver installation and wiring" on p.27.
The user is responsible for ensuring the machine's compliance with the EMC Directive, based on the installation and
wiring explained below.
 Connecting the noise fi lter
In large electrically noisy environments, connect a noise fi lter. Refer to "Noise fi lter" on p.25 for details.
 Connecting the AC power line reactor
When inputting single-phase 240 V, insert a reactor (5 A, 5 mH) in the AC power line to ensure compliance with EN
61000-3-2.
 Connecting the control power supply (24 VDC)
Use a control power supply (24 VDC) compliant with the EMC Directive.
Use a shielded cable for the wiring , and keep it as short as possible.
Refer to "Prevention of noise propagation" on p.25 for grounding the shielded cable.
 Connecting the motor cable
Use an accessory extension cable when extending the wiring distance between the motor and driver.
 Connecting the signal cable
Refer to "Prevention of noise propagation" on p.25.
 How to ground
 The cable used to ground the motor, driver and noise fi lter must be as thick and short as possible so that no
potential diff erence is generated.
 Choose a large, thick and uniformly conductive surface for the grounding point.
 Be sure to ground the Protective Earth Terminal of the motor and driver. Refer to p.18 for grounding method.
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