Toshiba TOSVERT VF-AS3 Instruction Manual page 399

High-performance industrial inverter for 3-phase motors, 3-phase 240v class 0.4 to 55kw, 3-phase 480v class 0.4 to 280kw
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Title
Parameter name
F729
Panel override
multiplication gain
■ Guideline for the setting
The override functions calculate the frequency command value by means of the following
expression:
• Frequency command value × (1+<F661> Input (%)/100) + <F660> Input (Hz)
<F661> is limited to -100 to +100
However, when the setting value of <F661: Override multiplying input select> is *1 in the table, use
the following expression.
• Frequency command value × (<F661> Input (%)/100) + <F660> Input (Hz)
<F661> is not limited
■ Additive override
An input override frequency is added to the frequency command value externally.
Example 1: Terminal [RR]
(Reference frequency command)
Terminal [II] (override input)
Output frequency
<FH>
Override
([II] input)
0
Example 1: <F660>= "3: Terminal II", <F661>= "0: Disabled"
Output frequency = Reference frequency + Override (terminal [II] input (Hz))
Example 2: <F660>= "1: Terminal RR", <F661>= "0: Disabled"
Output frequency = Reference frequency + Override (terminal [RR] input (Hz))
■ Multiple override
An input override frequency is added to the frequency command value externally.
Adjustment range
-100 to +100
Example 2: Terminal [RX]
Frequency after
override
Fwd
[RR] input
Override
(Reference
([II] input)
frequency)
-10V
10V
6-157
Unit
%
(Reference frequency command)
Terminal [RR] (override input)
Output frequency
Frequency after override
<FH>
0
10V
Rev
<FH>
6. [Advanced] How to use parameters
E6582062
Default setting
0
3
4
6
[RX] input
(Reference
frequency)
9

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