FR-D700 variable frequency drive from Mitsubishi Electric
Mitsubishi Electric FR-D700 Variable Frequency Drive allows adjustable speed control of an ac induction motor. It is Mitsubishi Electric’s fifth generation of Micro Drive. Mitsubishi says it built this drive to be highly economical while maintaining the company’s longstanding commitment to offering products that meet the highest quality and performance standards. Key reliability features include a 5-year warranty, a 10-year maintenance-free design life, and a published mean time between failures in excess of 25 years. The drive’s life check function continuously monitors the degrees of deterioration of critical internal components such as capacitors, inrush resistor, and cooling fans that can wear out over time. This warning function allows preventive maintenance to be scheduled and performed, thus avoiding critical machine down time and lost production. www.meau.com
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– Edited by Sidney Hill, Mark T. Hoske, Control Engineering www.controleng.com.