4
-10
After having completed Auto-Tuning, set E1-04 (Motor Maximum Frequency) to the base frequency shown
on the motor nameplate.
Fig 4.3 Motor Base Frequency and MxC Input Voltage Setting
Precautions After Using Rotational and Stationary Auto-Tuning
If the values of the maximum output frequency and the base frequency differ, set E1-04 (Maximum Output
Frequency) after Auto-Tuning.
IMPORTANT
1. When more speed precision is required at high speeds (i.e., 90% of the rated speed or higher), set T1-03
(Motor Rated Voltage) to the input power supply voltage
×
0.85.
2. When operating at high speeds (i.e., 90% of the rated speed or higher), the output current will increase as
the input power supply voltage is reduced. Be sure to provide sufficient margin in the MxC current.
O
u
tp
u
t
v
oltage
O
u
tp
u
t fre
qu
ency
Rated
v
oltage from
motor nameplate
T1-03
0
Rated
v
oltage from motor nameplate
Base fre
qu
ency
from motor nameplate
×
T1-03
Base fre
qu
ency
from motor nameplate
Operator Display
Easy Setting
Detailed Setting
T1-03
Motor rated output
No-load voltage when motor turns
at rated rotation
T1-05
Motor base frequency
No-load frequency when motor
turns at rated rotation
