Hitachi SJ Series, User Manual

Page: 442 / 786

12-24-11
Chapter 12 About the inverter function
Adjusting the relationship between Analog input Ai3
and frequency instruction
Item Parameter Data Description
[Ai3] terminal input filter time
constant
[Cb-21] 1~500(ms) Filters the input.
[Ai3] terminal selection [Cb-22]
00 Individual
01 Added to [Ai1]/[Ai2], with reversibility
02 Added to [Ai1]/[Ai2], without reversibility
[Ai3] terminal start amount [Cb-23] -100.00~100.00(%)
Sets a frequency
instruction ratio when
setting a start ratio for analog input.
[Ai3] terminal end amount [Cb-24] -100.00~100.00(%)
Sets a frequency
instruction ratio when
setting an end ratio for analog input.
[Ai3] terminal start ratio [Cb-25] -100.0~[Cb-26](%)
With respect to a minimum ratio for analog input
for -10 to 10V, sets a start ratio.
[Ai3] terminal end ratio [Cb-26] [Cb-25]~100.0(%)
With respect to an external frequency
instruction for -10 to 10 V,
sets an end ratio.
Normal rotation
Maximum frequency
Reverse rotation
Maximum frequency
[Cb-23]
[Cb-26]
[Cb-25]
[Cb-24]
(-10V)
-100%
100%
(+10V)
Analog input
(Ai3)
(Example 3)