Installation and wiring
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, malfunc-
tion 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 this function. (Refer to Pr. 156 "Stall
prevention operation selection" on page 5-314.)
A surge voltage suppression filter (FR-ASF-H/FR-BMF-H) can be used under V/F control and
Advanced magnetic flux vector control. A sine wave filter (MT-BSL/BSC) can be used under V/F
control. Do not use the filters under different control methods.
For the details of Pr. 72 "PWM frequency selection", refer to page 5-219.
Refer to page 3-19 to drive a 400V class motor by an inverter.
The carrier frequency is limited during PM sensorless vector control. (Refer to page 5-219.)
Main circuit terminals
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