6-66
H Trim Control Level (d4-02)
This
function sets the motor operated “trim”
control level as a percentage of maximum output frequency
in units of 1%. When trim control increase and decrease are selected as multi-function contact input
functions
(setting:
H1__ = “1C” and “1D” respectively), the trim control level is added to or subtracted
from the analog frequency reference, when each respective contact closes.
Parameter Display name Setting Units Default
Valid access levels
number
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
d4-02 Trim Control Lvl 0 to 100 % 25 Advanced
This parameter cannot be changed during operation.
If
the minus speed command is ON and the result of the subtraction is beyond zero, the output frequen
-
cy will become zero.
For
information regarding the plus and minus speed commands,
refer to the explanations of the multi-
function inputs (H1) in
6-5-7 External Terminal Function (H)
.
6-5-5 Motor Parameters (E)
H Intermediate Output Frequency 2 and Intermediate Output Frequency
Voltage 2
For
vector control of a special motor
, such as a constant
power-output motor or machine tool shaft mo
-
tor,
the motor may not fully operate in the constant output area (i.e.,
in frequency range as high as or
higher than the rated frequency).
If
the high-performance control of the motor is required in the constant output area, V/f characteristics to
compensate for voltage increases caused by the motor inductance must be set.
These parameter settings are not required for normal motor control.
Parameter Display name Setting Units Default
Valid access levels
number
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