Oriental motor BLVD20KM - Grounding method; Precautions about static electricity

Installation
−22−
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Grounding method
The wire used to ground the motor and driver must be as thick and short to the grounding point as possible so that
no potential dierence is generated. Choose a large, thick and uniformly conductive surface for the grounding point.
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Grounding the motor
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Grounding the driver
Ground the motor and driver using any one of the mounting holes as shown in the gure.
Use shakeproof washers for grounding so that the motor and driver are electrically conducted with the grounding
points, respectively.
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Notes about installation and wiring
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Connect the motor, driver and other peripheral control equipment directly to the grounding point so that no
potential dierence is generated between grounds.
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When relays or electromagnetic switches are used together with the product, use CR circuits to suppress surges
generated by them.
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Keep cables as short as possible without coiling and bundling extra lengths.
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Wire the power lines such as the motor cable and power cable away from the signal cables by providing a minimum
clearance of 100 mm (3.94 in.) between them. If they have to cross, cross them at a right angle.
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Use the included connection cable when extending the wiring distance between the motor and driver. The EMC
testing is conducted using the Oriental Motor connection cable.
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Example of installation and wiring
Driver
DC power
supply
Power supply
cable
Motor
I/O signal cable [2 m (6.6 ft.)]
RS-485 communication
cable
Connection cable
External
potentiometer
Cable
clamp
OPX-2A
(Grounded panel)
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Precautions about static electricity
Static electricity may cause the driver to malfunction or suer damage.
While the power is supplied to the driver, handle the driver with care and do not come near or touch the driver.
Always use an insulated screwdriver to adjust the driver's potentiometers or switches.
Note
The driver uses parts that are sensitive to electrostatic charge. Before touching the driver, turn o the power
to prevent electrostatic charge from generating. If an electrostatic charge is impressed on the driver, the
driver may be damaged.