4-28
Frequency limiter
This function can set a maximum and minimum limit of the output
frequency.
Even if a frequency command exceeds the maximum and minimum
limiter the inverter will ignore this value and stop at the values set.
Set first maximum limiter on setting.
Be sure that the maximum limiter (A061/A261) > minimum limiter (A062/A262).
The maximum and minimum limiter will not operate if 0Hz is set.
Set item
Function code
Setting limit
Contents
Frequency max.
limiter
A061/A261
0.00,
frequency min. limiter - max.
frequency
Unit : Hz
Setting max. of output
frequency
Frequency min. limiter
A062/A262
0.00,
starting frequency - max.
limiter frequency
Unit : Hz
Setting min. of output
frequency
(1) In use O-L, OI-L case
(2) In use O2-L case
When using the minimum frequency limiter and 0v is inputted into O2 terminal, A062 applies to both forward
and reverse directions.
(a) When operation command is control terminal (Terminal)(A002:01)
Terminal
Revolution when O2 is 0V
FW(ON)
A062 on forward side
RV(ON)
A062 on reverse side
(b) When operation command is operator (A002:02)
F004
Revolution when O2 is 0V
00
A062 on forward side
01
A062 on reverse side
Chapter 4 Explanation of function
A061/A261: 1st/2
nd
frequency maximum
limiter
A062/A262: 1st/2
nd
frequency minimum
limiter
Relation code
Forward
A062
A061
Maximum
frequency
A004/A204
Maximum
frequency
A062
A061
10V
-10V
Reverse
Output frequency (Hz)
Maximum frequency
A004/A204
Frequency command
0V
4mA
10V
20mA
A062
A061
When frequency command is control terminal
(Terminal), by setting Min. limiter, even if 0V is
input, it is
not possible to output less than the
frequency set with Min. limiter.
