Fuji Electric ALPHA7, User Manual

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CHAPTER 15 STANDARDS COMPLIANCE
European Standards Compatibility (CE)
15-3
15
15.1.1 Compatibility with EMC Standards
The CE marking on servo amplifiers does not certify that all machinery and equipment using Fuji
products are compatible with the EMC Directive. Consequently, if affixing CE marking to machinery and
equipment, the responsibility for doing so lies with the machinery manufacturer. The reason for this is
that the CE marking on Fuji products indicates the condition that the product is used in such a way that
satisfies certain conditions.
Various other devices other than Fuji products are generally used with machinery and equipment. It is
therefore necessary that machinery manufacturers give consideration to all equipment.
 Noise filters
Please use the product with an external noise filter in order to comply with standards. No matter
what the application, please install noise filters using the following recommended installation
method. It is recommended that noise filters be installed inside metal cabinets to ensure more
reliable compatibility with standards.
[Recommended filter] HF3000C-SZA Series (SOSHIN ELECTRIC CO., LTD.)
 Recommended installation method
Servo amplifier and servomotor wiring work should carried out by an electrician. To comply with
the EMC Directive, it is necessary to carry out installation and wiring using the following method
whenever possible.
Noise filter installation method
(1) Install servo amplifiers and noise filters on a metal plate such as a grounded panel surface. Use
shielded wires for power cables and motor cables, and make them as short as possible. Clamp
shields (20 m or shorter) securely to a metal plate. Furthermore, connect shields and motor
grounding terminals electrically.
(2) Use shielded wire for servo amplifier control terminal wiring. Clamp shields securely to a
grounded panel surface in the same manner as that for motor cables. Use cables of length no
longer than 20 m.