YASKAWA V1000 Technical Manual page 196

5.7 H: Terminal Functions
n H3-02: Terminal A1 Function Selection
Determines the function assigned to analog input terminal A1.
Settings on page 198 for a list of functions and descriptions.
No.
H3-02
Note: If not using an input terminal or if using it in the through-mode, be sure to set that terminal to "F".
n H3-03/H3-04: Terminal A1 Gain/Bias Setting
Parameter H3-03 sets the level of the selected input value that is equal to 10 Vdc input at terminal A1 (Gain).
Parameter H3-04 sets the level of the selected input value that is equal to 0 V input at terminal A1.
Both can be used to adjust the analog input A1 characteristics.
No.
H3-03
H3-04
Default Settings
Using the factory default settings for the analog input's function, gain, and bias, the 0 to 10 Vdc signal at the analog input
will yield a 0 to 100% frequency reference span.
Setting Examples
• Gain H3-03 = 200%, A1 as frequency reference input:
An input 10 Vdc will be equivalent to a 200% frequency reference and 5 Vdc will be equivalent to a 100% frequency
reference. Since the drive output is limited by the maximum frequency parameter (E1-04), the frequency reference will
be equal to E1-04 above 5 Vdc.
196
100%
Analog input
value
0V
-100%
Figure 5.68 Analog Input without Limit (Bias Setting -100%)
Name
Terminal A1 Function Selection
Name
Terminal A1 Gain Setting
Terminal A1 Bias Setting
Gain = 100 %
Frequency
reference
Bias = 0 %
Figure 5.69 Analog Input A1 Default Characteristics
YASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual
10 V
Analog input
voltage
Refer to Multi-Function Analog Input Terminal
Setting Range
Setting Range
-999.9 to 999.9%
-999.9 to 999.9%
0 V 10 V
Default
0 to 31
Default
100.0%
0.0%
0