Additive Override; Multiple Override - Toshiba TOSVERT VF-AS3 Instruction Manual

■ 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)
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)

■ Additive override

An input override frequency is added to the frequency command value externally.
Example 1: Terminal [RR]
4
Output frequency
4
6
Override
([II] input)
9
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.
Output frequency
6. [Advanced] How to use parameters
(Reference frequency command)
Terminal [II] (override input)
Frequency after
override
<FH>
[RR] input
(Reference
frequency)
0 10V
Frequency after override
<FH>
[RR] input
(Reference
frequency)
0 10V
Example 2: Terminal [RX]
(Reference frequency command)
Terminal [RR] (override input)
Output frequency
Fwd <FH>
Override
([II] input)
-10V
0
<FH>
Output frequency
Frequency after override
<FH>
Fwd
-10V
0
<FH>
6-156
E6582062
Frequency after override
[RX] input
(Reference
frequency)
10V
Rev
[RX] input
(Reference
frequency)
10V
Rev