YASKAWA Varispeed G7 Instruction Manual page 235

Name
Con-
stant
Display
Number
Multi-function
analog input
(terminal A2)
Select multi-function analog input
function selec-
H3-09
function for terminal A2.
tion
Terminal A2
Sel
Gain (terminal
Sets the input gain (level) when
A2)
10 V (20 mA) is input.
H3-10
Set according to the 100% value
Terminal A2
for the function set for H3-09.
Gain
Bias (terminal
Sets the input gain (level) when 0
A2)
V (4 mA) is input.
H3-11
Set according to the 100% value
Terminal A2
for the function set for H3-09.
Bias
Analog input
Sets primary delay filter time con-
filter time con-
stant in seconds for the analog
stant
H3-12
input terminal.
Filter Avg
Effective for noise control etc.
Time
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.
Frequency reference
(H3-07)
Terminal A1, A3 input
Setting
Description
Range
0 to 1F
0.0 to
1000.0
-100.0
to
+100.0
0.00 to
2.00
Frequency reference
(H3-06)
Terminal A1 (A3)
input voltage
Fig 6.26 Terminals A1 and A2 Inputs
Adjusting Frequency References
Control Methods
Change
Open
Factory during
V/f
Loop
Setting Opera-
V/f with
Vector
tion
PG
1
0 No A A A
100.0
Yes A A A
%
0.0% Yes A A A
0.03
No A A A
s
Terminal A2 input
MEMO
Open
BUS
Flux
Loop
Regis-
Vec-
Vector
ter
tor
2
A A 418H
A A 419H
A A 41AH
A A 41BH
Terminal A2 input
voltage (current)
29
6-