
Adjusting Frequency References
6-
29
Adjusting Analog Frequency Reference Using Constants
The frequency reference is input from the control circuit terminals using analog voltage and current.
If using frequency reference terminal A1 as an input terminal, perform adjustments using constants H3-02 and
H3-03. If using multi-function analog input terminal A2 as a frequency reference terminal, perform adjust-
ments using H3-10 and H3-11.
Adjustment can be made using H3-06 and H3-07 when multi-function analog input terminal A3 is used as a
frequency reference terminal.
Fig 6.26 Terminals A1 and A2 Inputs
H3-10
Gain (terminal
A2)
Sets the input gain (level) when
10 V (20 mA) is input.
Set according to the 100% value
for the function set for H3-09.
0.0 to
1000.0
100.0
%
Yes
A
A
A
A
A
419H
端子 A2 增益
H3-11
Bias (terminal
A2)
Sets the input gain (level) when 0
V (4 mA) is input.
Set according to the 100% value
for the function set for H3-09.
-100.0
to
+100.0
0.0%
Yes
A
A
A
A
A
41AH
端子 A2 偏置
H3-12
Analog input
filter time con-
stant
Sets primary delay filter time con-
stant in seconds for the analog
input terminal.
Effective for noise control etc.
0.00 to
2.00
0.03
s
No
A
A
A
A
A
41BH
模拟量滤波
时间
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
Display
V/f
V/f
with
PG
Open
Loop
Vector
1
Flux
Vec-
tor
Open
Loop
Vector
2
Frequency reference
Terminal A1, A3 input
Terminal A1 (A3)
input voltage
Frequency reference
Terminal A2 input
Terminal A2 input
voltage (current)
(H3-06)
(H3-07)