YASKAWA Z1000 User Manual page 137

No.
E5-24
Note: Set E5-24 to 0.0 when setting E5-09. However, setting both E5-09 and E5-24 to 0.0 will trigger an alarm. An alarm will also be triggered
if neither E5-09 nor E5-24 are set to 0.0.
n H3-03, H3-04: Terminal A1 Gain and Bias Settings
Parameter H3-03 sets the level of the selected input value that is equal to 10 Vdc (20 mA) input at terminal A1 (gain).
Parameter H3-04 sets the level of the selected input value that is equal to 0 V (4 mA, 0 mA) input at terminal A1 (bias).
Use both parameters to adjust the characteristics of the analog input signal to terminal A1.
No.
H3-03
H3-04
Setting Examples
• Gain H3-03 = 200%, bias H3-04 = 0, terminal A1 as frequency reference input (H3-02 = 0):
A 10 Vdc input is equivalent to a 200% frequency reference and 5 Vdc is 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 4.22 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.
Figure 4.23 Frequency Reference Setting by Analog Input with Negative Bias
n 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.
YASKAWA ELECTRIC TOEP C710616 45F YASKAWA AC Drive – Z1000 User Manual
Parameter Name
Motor Induction Voltage Constant 2
Name
Terminal A1 Gain Setting
Terminal A1 Bias Setting
Gain = 200 %
Frequency
reference
100 %
E1-04
Bias = 0 %
0 V
100 %
Frequency
H3-01 = 0
reference
0
-25%
4.7 Basic Drive Setup Adjustments
Setting Range
0.0 to 6500.0 mV/(r/min)
Setting Range
-999.9 to 999.9%
-999.9 to 999.9%
H3-01 = 0
5 V 10 V
H3-01 = 0
2.0 V 10 V
Analog Input
Voltage
H3-01 = 1
Default
Determined by
o2-04
Default
100.0%
0.0%
4
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