MELSERVO-J4/J5 High-Altitude Operation Technical Bulletin

This technical bulletin from Mitsubishi Electric outlines precautions and required actions for operating MELSERVO-J4 and J5 series servo amplifiers at altitudes between 2000 m and 5000 m, where standard specifications are exceeded. It details derating of ambient temperature, the need for an isolation transformer or surge protector to compensate for reduced withstand voltage, and recommends amplifier replacement after approximately 6 years due to accelerated aging.