Toshiba TOSVERT VF-AS1 User Manual

E6581528
F-26
6
[Parameter setting]
Title Function Adjustment range Default setting

Base frequency voltage 1
(output voltage
adjustment)
~ V
⇒ Refer
to page K-2.

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 500V class at 500V, 575V class at 575V and 690V class at 690V.

Toshiba TOSVERT VF-AS1 Specifications

General

Brand	Toshiba
Model	TOSVERT VF-AS1
Category	Inverter
Language	English