Toshiba TOSVERT VF-FS1 Instruction Manual page 133

6.12.5 Output voltage adjustment/Supply voltage correction
: Base frequency voltage 1
: Supply voltage correction (output voltage adjustment)
• Function
Base frequency voltage1
The parameter adjusts the voltage corresponding to the base frequency 1
voltage exceeding the
to either "0" or "1".)
Supply voltage correction
The parameter maintains a constant V/F ratio, even when the input voltage decreases. The
torque during low-speed operation is prevented from decreasing.
Supply voltage correction:
Limitation of output voltage: Limits the voltage at frequencies exceeding the base frequency. Applied when
[Parameter setting]
Title
Base frequency voltage1
Supply voltage correction
(limitation of output voltage)
If is set to " " or " ", the output voltage will change in proportion to the input voltage.
Even if the base frequency voltage (
will not exceed the input voltage.
The rate of voltage to frequency can be adjusted according to the rated motor capacity. For example,
setting to " " or " " prevents the output voltage from increasing, even if the input voltage
changes when operation frequency exceeds the base frequency.
When the V/F control mode selection parameter (
voltage is corrected regardless of the setting of
set value is put out. (This function is enabled only when
Maintains a constant V/F ratio, even when the input voltage fluctuates.
operating a special motor with low induced voltage.
Function
50-330 (V) : 200V class
50-660 (V) : 400V class
0: Supply voltage uncorrected,
output voltage limited
1: Supply voltage corrected,
output voltage limited
2: Supply voltage uncorrected,
output voltage unlimited
3: Supply voltage corrected,
output voltage unlimited
parameter ) is set above the input voltage, the output voltage
F-37
Adjustment range
) is set to any number between
.
E6581381
so that no
is set
6
Default setting
230 (WP/WN type)
400 (WP type)
460 (WN type)
2
and , the supply