Toshiba VF-PS1 - Page 138

E6581386
F-26
6
[Parameter setting]
Title Function Adjustment range Default setting

Base frequency voltage 1
(output voltage
adjustment)
V class:~ V
V class:~ V
200V models:

400V models:


Base frequency voltage
selection
(correction of supply
voltage)
: Without voltage compensation (limitless output voltage)
: With voltage compensation (limitless output voltage)
: Without voltage compensation (limited output voltage)
: With voltage compensation (limited output voltage)

+If  is set to  or , the output voltage will change in proportion to the input voltage.
+Even if the base frequency voltage () is set above the input voltage, the output 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  prevents the output voltage from increasing, even if the input voltage changes when the operation
frequency exceeds the base frequency.
+When the V/f control mode selection parameter () is set to any number between , ,  or , the supply
voltage is corrected regardless of the setting of .
[=: Supply voltage uncorrected, output voltage
unlimited]
[=: Supply voltage corrected, output voltage
unlimited]
Input
voltage
High
Low
Output frequency
Output voltage
[V]

0
Input voltage
Input
voltage
High
Low
Output voltage
[V]
Output frequency

0

* The above applies when V/f control mode selection
parameter  is set to , or .

Rated voltage
>1 the output voltage can be
prevented from exceeding
the input voltage.
* Note that a voltage higher than  is applied at
output frequencies over the base frequency , even
if  is set below the input voltage.
[=: Supply voltage uncorrected, output voltage
limited]
[=: Supply voltage corrected, output voltage
limited]

Input
voltage
High
Low
Output frequency
Output voltage
[V]
0
Input voltage

Input
voltage
High
Low
Output voltage
[V]
Output frequency

0

* The above applies when V/f control mode selection
parameter  is set to , or .

Rated voltage
>1 the output voltage can be
prevented from exceeding
the input voltage.
Note: Rated voltage is fixed for 200V class at 200V and 400V class at 400V.