MELSERVO-J4

Cautions

Cautions for linear servo motors The linear servo system uses powerful magnets on the secondary side. ●● Magnetic force is inversely proportional to the square of the distance from the magnetic material. Therefore, the magnetic force will be significantly stronger as closer to the magnetic material. Persons installing the linear servo motor as well as operating the machine must be fully cautious. Persons with pacemakers or other medical devices must keep away from the machine. Keep cell phones, watches, calculators and other products which may ●● malfunction or fail due to the magnetic force away from the machine. Avoid wearing metals including earrings and necklaces when handling the machine. Place a caution sign such as "CAUTION! POWERFUL MAGNET" to ●● give warning against the machine. Use non-magnetic tools, when installing or working near the linear servo ●● motor. e.g., explosion-proof beryllium copper alloy safety tools (BEALON manufactured by NGK Insulators, Ltd.) The permanent magnets on the secondary side generate attraction ●● force, and there is a risk that your hand may be caught. Handle the linear servo motor carefully to avoid serious injury especially when installing the primary side after installing the secondary side. If the linear servo motor is used in such an environment where there is ●● magnetic powder, the powder may adhere to the permanent magnets of the secondary side and cause a damage. In that case, take measures to prevent the magnetic powder or pieces from being attracted to the permanent magnets of the secondary side or from going into the gap between primary side and secondary side. The linear servo motor is rated IP00. Provide protection measures to ●● prevent dust and oil, etc., as necessary. Install the moving part in such manner that the center of gravity of the ●● moving part comes directly above the center of the primary side. Lead wires or cables led from the primary side do not have a long ●● bending life. Fix the lead wires or cables to a moving part to prevent the lead wires or cables from repetitive bending. Increase in the temperature of the linear servo motor causes a thrust ●● drop. Be sure to use the motor within the specified ambient temperature. Disposal of linear servo motors Dispose the primary side as industrial waste. ●● Demagnetize the secondary side with a heat of 300 °C or higher, and ●● dispose as industrial waste. Please contact your local sales office if you have any questions about disposal. Do not leave the product unattended. ●●

For safety standard certification Even though the MR-J4 series servo amplifier, MR-D30 functional safety unit, and MR-J3-D05 safety logic unit are certified to various safety standards, this does not guarantee that the systems in which they are installed will also be certified. The entire system shall observe the following: (1) For safety circuits, use parts and/or devices whose safety are confirmed or which satisfy safety standards. (2) For details regarding the use of the servo amplifiers and other cautionary information, refer to relevant Servo Amplifier Instruction Manual. (3) Perform risk assessment on the entire machine/system. It is recommended to use a Certification Body for final safety certification.

8-3