. -.e
. . d._ __-,- .---.
.--I-- “ll__ ,. .I.. e... - 1.
* .-. - .---
Trouble Checkup
Remedy
Motor speed is Are number of poles of motor Check specifications and
out of control correct? Does voltage meet Rating Plate.
(motor speed
specifications?
is too high
or low)
. . . . . .
Is gear reduction ratio correct?
Is maximum frequency set properly? Check maximum frequency
setting.
Are voltages across motor terminals Check base frequency
correct?
(V/F) .
Motor speed is Is load too large? Lighten load.
unstable *..
Is load change excessive? Minimize load change.
Increase inverter and
motor capacities.
-43-
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