YASKAWA A1000 Series Quick Start Manual page 84

4 Start-Up Programming & Operation
Figure 71
Figure 71 Frequency Reference Setting by Analog Input with Increased Gain
• Gain H3-03 = 100%, bias H3-04 = -25%, terminal A1 as frequency reference input:
An input of 0 Vdc will be equivalent to a -25% frequency reference.
When parameter H3-01 = 0, the frequency reference is 0% between 0 and 2 Vdc input.
When parameter H3-01 = 1, the motor will rotate in reverse between -10 and 2 Vdc input.
Figure 72
Figure 72 Frequency Reference Setting by Analog Input with Negative Bias
H3-05: Terminal A3 Signal Level Selection
■
Selects the input signal level for analog input A3.
No.
H3-05
Setting 0: 0 to 10 Vdc
The input level is 0 to 10 Vdc. See the explanation provided for H3-01.
Setting 1: –10 V to 10 Vdc
The input level is –10 to 10 Vdc. See the explanation provided for H3-01.
H3-06: Terminal A3 Function Selection
■
Determines the function assigned to analog input terminal A3.
No.
H3-06
■ H3-07, H3-08: Terminal A3 Gain and Bias Setting
Parameter H3-07 sets the level of the selected input value that is equal to 10 Vdc input at terminal A3 (gain).
Parameter H3-08 sets the level of the selected input value that is equal to 0 V input at terminal A3 (bias).
No.
H3-07
H3-08
84
H3-01 = 0
Gain = 200 %
Frequecny
reference
100 %
E1-04
Bias = 0 %
0 V
5 V
H3-01 = 0
100 %
Frequency
H3-01 = 0
reference
0
2.0 V
Analog Input
-25%
Voltage
H3-01 = 1
Name
Terminal A3 Signal Level Selection
Name
Terminal A3 Function Selection
Name
Terminal A3 Gain Setting
Terminal A3 Bias Setting
Gain = 200 %
100%
E1-04
-10 V -5 V
10 V
H3-01 = 1
100%
-10 V -6.0 V
10 V
Refer to Setting 0: 0 to 10 Vdc on page
Refer to Setting 1: –10 to 10 Vdc on page
YASKAWA ELECTRIC TOEP C710616 21C YASKAWA AC Drive - A1000 Quick Start Guide
H3-01 = 1
5 V
0 V
10 V
-100%
E1-04
Gain = -200 %
2.0 V 10 V
Analog Input
-25%
Voltage
-100%
E1-04
-150%
Setting Range
0, 1
Setting Range
0 to 31
Setting Range
-999.9 to 999.9%
-999.9 to 999.9%
Default
0
83.
83.
Default
2
Default
100.0%
0.0%