Hitachi SJ Series, User Manual

Page: 441 / 786

12-24-10
Chapter 12 About the inverter function
Adjusting the relationship between Analog input Ai2
and frequency instruction
Item Parameter Data Description
[Ai2] terminal input filter
time constant
[Cb-11] 1~500(ms) Filters the input.
[Ai2] terminal start amount [Cb-13]
0.00
~100.00(%)
Sets a frequency
instruction ratio when setting a start
ratio for analog input.
[Ai2] terminal end amount [Cb-14]
0.00
~100.00(%)
Sets a frequency
instruction ratio when setting an
end ratio for analog input.
[Ai2] terminal start ratio [Cb-15]
0.0
~[Cb-16](%)
With respect to a minimum ratio for analog input for 0 to
10 V/0 to 20 mA,
sets a start ratio.
[Ai2] terminal end ratio [Cb-16]
[Cb-17]
~100.0(%)
With respect to an external frequency
instruction for 0
to 10 V, 0 to 20 mA, sets an end ratio.
[Ai2] terminal start selection [Cb-17]
00
For a
n instruction for a value of one of 0.00% to the
"Start amount [Cb-13]" and to the "End amount
[Cb-14]," whichever is lower, one of the values of
the "Start amount [Cb-13]" and the "End amount
[Cb-14]," whichever is lower, is output.
01
For a
n instruction for a value of one of 0.00% to the
"Start amount [Cb-14]" and to the "End amount
[Cb-15]," whichever is lower, a value of 0.00% is
output.
Maximum
frequency
[Cb-14]
[Cb-13]
0
[Cb-15] [Cb-16] 100
(0V/0mA) (10V/20mA)
Analog input
(V/mA)
The output frequency for
0% to [Cb-15] is [Cb-13].
Analog input
Maximum
frequency
[Cb-14]
[Cb-13]
0
[Cb-15] [Cb-16] 100
(0V/0mA) (10V/20mA) (V/mA)
The output frequency for
0% to [Cb-15] is 0 Hz.
(Example 2-1) [Cb-18]=01
Maximum
frequency
[Cb-13]
[Cb-14]
0 [Cb-15]
[Cb-16] 100
(0V/0mA) (10V/20mA)
Analog input
(V/mA)
The output frequency for
[Cb-16] to 100% is
[Cb-14].
Analog input
Maximum
frequency
[Cb-13]
[Cb-14]
0 [Cb-15]
[Cb-16]
100
(0V/0mA) (10V/20mA) (V/mA)
The output frequency for
[Cb-16] to 100% is 0 Hz.
(Example 2-2) [Cb-17]=01
(Example 1-1) [Cb-17]=00
(Example 1-2) [Cb-17]=00