YASKAWA A1000 Series Technical Manual page 235

No.
H3-03
H3-04
Setting Examples
• Gain H3-03 = 200%, bias H3-04 = 0, terminal A1 as frequency reference input (H3-02 = 0):
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.
Figure 5.78
Figure 5.78 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 5.79
Figure 5.79 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.
for a list of functions and descriptions.
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.
on page 237 for a list of functions and descriptions.
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
Name
Terminal A1 Gain Setting
Terminal A1 Bias Setting
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 10 V
Analog Input
-25%
Voltage
H3-01 = 1
Refer to Multi-Function Analog Input Terminal Settings on page 237
Name
Terminal A3 Signal Level Selection
H3-01 = 1
Gain = 200 %
100%
E1-04
-10 V -5 V
10 V
H3-01 = 1
100%
-10 V -6.0 V
2.0 V
-25%
-100%
E1-04
-150%
Refer to Setting 0: 0 to 10 Vdc on page
Refer to Setting 1: –10 to 10 Vdc on page
Refer to Multi-Function Analog Input Terminal Settings
5.7 H: Terminal Functions
Setting Range
-999.9 to 999.9%
-999.9 to 999.9%
5 V
0 V
10 V
-100%
E1-04
Gain = -200 %
10 V
Analog Input
Voltage
Setting Range
0, 1
Default
100.0%
0.0%
5
Default
0
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