Yaskawa AC Drive Z1000 Bypass Technical Manual User Manual
Page 162
0
2.0 V
10 V
100 %
Frequency
reference
-25%
H3-01 = 0
H3-01 = 1
H3-01 = 0
Analog Input
Voltage
Figure 5.35 Frequency Reference Setting by Analog Input with Negative Bias
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H3-09: Terminal A2 Signal Level Selection
Selects the input signal level for analog input A2. Set Jumper S1 on the terminal board accordingly for a voltage input or
current input.
No.
Name
Setting Range
Default
H3-09
Terminal A2 Signal Level Selection
0 to 3
2
Setting 0: 0 to 10 V with Zero Limit
The input level is 0 to 10 Vdc. Negative input values will be limited to 0.
Refer to Setting 0: 0 to 10 V with Zero Limit on
Setting 1: 0 to 10 V without Zero Limit
The input level is 0 to 10 Vdc. Negative input values will be accepted.
Refer to Setting 1: 0 to 10 V without Zero Limit on
Setting 2: 4 to 20 mA Current Input
The input level is 4 to 20 mA. Negative input values by negative bias or gain settings will be limited to 0%.
Setting 3: 0 to 20 mA Current Input
The input level is 0 to 20 mA. Negative input values by negative bias or gain settings will be limited to 0%.
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H3-10: Terminal A2 Function Selection
Determines the function assigned to analog input terminal A2.
Refer to Multi-Function Analog Input Terminal Settings on
for a list of functions and descriptions.
No.
Name
Setting Range
Default
H3-10
Terminal A2 Function Selection
0 to 26
0
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H3-11, H3-12: Terminal A2 Gain and Bias Setting
Parameter H3-11 sets the level of the input value selected that is equal to 10 Vdc input or 20 mA input to terminal A2.
Parameter H3-12 sets the level of the input value selected that is equal to 0 V, 4 mA or 0 mA input at terminal A2.
Use both parameters to adjust the characteristics of the analog input signal to terminal A2. The setting works in the same way
as parameters H3-03 and H3-04 for analog input A1.
No.
Name
Setting Range
Default
H3-11
Terminal A2 Gain Setting
-999.9 to 999.9%
100.0%
H3-12
Terminal A2 Bias Setting
-999.9 to 999.9%
0.0%
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H3-13: Analog Input Filter Time Constant
Parameter H3-13 sets the time constant for a first order filter that will be applied to the analog inputs.
An analog input filter prevents erratic drive control when using a “noisy” analog reference. Drive operation becomes more
stable as the programmed time becomes longer, but it also becomes less responsive to rapidly changing analog signals.
No.
Name
Setting Range
Default
H3-13
Analog Input Filter Time Constant
0.00 to 2.00 s
0.03 s
5.8 H: Terminal Functions
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YASKAWA ELECTRIC SIEP YAIZ1B 01D YASKAWA AC Drive – Z1000 Bypass Technical Manual