Adjusting Frequency References
6-27
îš„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 6.24 Terminals A1 and A2 Inputs
H3-09
Multi-function
analog input
(terminal A2)
function selec-
tion
Select multi-function analog input
function for terminal A2. Refer to
the next table.
0 to 1F 0 No A A A A A
Terminal A2
Sel
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
Terminal A2
Gain
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
Terminal A2
Bias
H3-12
Analog input
filter time con-
stant
Sets primary delay filter time con-
stant in seconds for the two ana-
log input terminal (A1 and A2).
Effective for noise control etc.
0.00 to
2.00
0.03
s
NoAAAAA
Filter Avg
Time
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
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)
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