4-41
4-3 Wiring Conforming to EMC Directives
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
4
System Design
Door Structure
Use a metal door.
Use a water-draining structure where the door and case fit together, and leave no gaps. (Refer to
the diagrams.)
Use a conductive gasket between the door and the case. (Refer to the diagrams.)
Strip the paint off the sections of the door and case that will be in contact with the conductive
gasket (or mask them during painting), so that they are electrically conductive.
The panel may warp and gaps may appear when screws are tightened. Be sure that no gaps
appear when tightening screws.
Selecting Connection Component
This section explains the criteria for selecting the connection components required to improve noise resistance.
Understand each component's characteristics, such as its capacity, performance, and applicable range when
selecting the connection components.
For more details, contact the manufacturers directly.
No-fuse Breaker (NFB)
When selecting a no-fuse breaker, consider the maximum input current and the inrush current.
Maximum Input Current
The momentary maximum output of the Servo Drive is approx. 3 times the rated output, and can
be output for up to 3 seconds.
Therefore, select no-fuse breakers with an operation time of at least 5 seconds at 300% of the
rated current ratio. General and low-speed no-fuse breakers are generally suitable.
Case
Door
[Control panel]
[Door (interior side)]
A
B
[A-B cross-section diagram]
Oil-resistant gasket
Conductive gasket
Door end
Oil-resistant gasket Conductive gasket
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