Mitsubishi Electric 800 Series Instruction Manual page 42

 With PM motor
Use the wiring length of 100 m or shorter when connecting a PM motor.
Use one PM motor for one inverter. Multiple PM motors cannot be connected to an inverter.
When the wiring length exceeds 50 m for a 600 V class motor driven by an inverter under PM sensorless vector control, set "9"
(6 kHz) or less in Pr.72 PWM frequency selection.
NOTE
• Especially for long-distance wiring, the inverter may be affected by a charging current caused by stray capacitances of the
wiring, leading to an activation of the overcurrent protection, malfunction of the fast-response current limit operation, or even
to an inverter failure. It may also cause a malfunction or fault of the equipment connected ON the inverter output side. If the
fast-response current limit function malfunctions, disable the function. (Refer to Pr.156 Stall prevention operation selection
in the FR-E800 Instruction Manual (Function).)
• For the details of Pr.72 PWM frequency selection, refer to the FR-E800 Instruction Manual (Function).
• Refer to page 82
• The carrier frequency is limited during Real sensorless vector control and PM sensorless vector control. (Refer to the FR-E800
Instruction Manual (Function).)
to drive a 600 V class motor by an inverter.
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2. Installation and Wiring
2.5 Main circuit terminals
1
2
3
4
5
6
7
8
9