YASKAWA CIMR-VU BA0001 Technical Manual page 205

Setting 1: 0 to 10 Vdc without Limit
The input level is 0 to 10 Vdc. Negative input values will be accepted.
Example: Terminal A1 is set to supply the frequency reference, and the bias (H3-04) is set to -100%. The frequency reference
can be set from 0 to 100% with an analog input of 5 to 10 V. With an input of 0 to 5 V, the frequency reference can be set
from -100% to 0%. The drive reverses the motor rotation with negative input.
n H3-02: Terminal A1 Function Selection
Determines the function assigned to analog input terminal A1.
page 208 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
YASKAWA ELECTRIC SIEP C710606 18F YASKAWA AC Drive – V1000 Technical Manual
100%
Analog input
value
0
-100%
Negative input is limited to 0
Figure 5.67 Analog Input with Limit (Bias Setting -100%)
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
10 V
Analog input
voltage
10 V
Analog input
voltage
Refer to Multi-Function Analog Input Terminal Settings on
Setting Range
0 to 31
Setting Range
-999.9 to 999.9%
-999.9 to 999.9%
5.7 H: Terminal Functions
Default
0
Default
100.0%
0.0%
5
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