Standard and CE Marking
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30
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Notes about installation and wiring
•
Connect the motor, speed controller, and other peripheral control equipment directly to the grounding point so as to
prevent a potential difference from developing between grounds.
•
When relays or electromagnetic switches are used together with the system, use mains filters and CR circuits to suppress
surges generated by them.
•
Keep cables as short as possible without coiling and bundling extra lengths.
•
Wire the power lines such as the AC power cable and motor cable away from the input signal cable by providing a
minimum clearance of 100 mm (3.94 in.) between them.
If the power lines (AC power cable, motor cable) and the input signal cable have to cross, cross them at a right angle.
•
Use a connection cable (supplied or accessory) when extending the wiring distance between the motor and speed
controller.
The EMC measures are conducted using the Oriental Motor connection cable.
Example of installation and wiring
Grounding
Grounding
Grounding
Grounding
Speed controller
Motor cable
䞉
connection cable
AC power supply
cable
Surge
arrester
Main
filter
Ground plate
Input signal cable
[2 m (6.6 ft.) or less]
Motor
Maximum extension distance:
10.5 m (34.4 ft.)
[including 0.5 m (1.6 ft.) of the
motor cable]
Grounding
Precautions about static electricity
Static electricity may cause the speed controller to malfunction or suffer damaged.
Be sure to ground the motor and speed controller to prevent it from being damaged by static electricity.
Except when operating the setting dial, potentiometer, switches, and keys on the operation panel of the speed controller front
side, do not come close to or touch the speed controller while the power is ON.
