2.7 H: Terminal Functions
YASKAWA ELECTRIC TOEP C710687 03B FSDrive-MV1000 Parameter Guide 193
n H3-02: Analog Input 1 Function Selection
Determines the function assigned to analog input 1. Refer to Analog Input Terminal Settings on page 195 for details.
n
H3-03, H3-04: Analog Input 1 Gain and Bias Settings
Parameter H3-03 sets the level of the selected input value that is equal to 10 Vdc input at analog input 1 (gain).
Parameter H3-04 sets the level of the selected input value that is equal to 0 V input at analog input 1 (bias).
Both can be used to adjust the characteristics of the analog input signal to analog input 1.
Setting Examples
• Gain H3-03 = 200%, bias H3-04 = 0, analog input 1 as frequency reference input (H3-02 = 0):
An input of 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 2.64
Figure 2.64 Frequency Reference Setting by Analog Input with Increased Gain
• Gain H3-03 = 100%, bias H3-04 = -25%, analog input 1 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 in response to input between -10 and 2 Vdc input.
Figure 2.65
Figure 2.65 Frequency Reference Setting by Analog Input with Negative Bias
No. Name Setting Range Default
H3-02 Analog Input 1 Function Selection 0 to FF 0
No. Name Setting Range Default
H3-03 Analog Input 1 Gain -999.9 to 999.9% 100.0%
H3-04 Analog Input 1 Bias -999.9 to 999.9% 0.0%
100%
-100%
5 V
10 V
-5 V-10 V
E1-04
E1-04
H3-01 = 0 H3-01 = 1
0 V
10 V5 V
0 V
Gain = 200 %
Gain = 200 %
100 %
Frequecny
reference
Bias = 0 %
E1-04
Gain = -200 %
2.0 V
10 V
-6.0 V-10 V
E1-04
0
Gain = -100%
Gain = -150%
2.0 V 10 V
100 %
Frequency
reference
Bias = -25%
H3-01 = 0
H3-01 = 1
H3-01 = 0
H3-01 = 1
100%
Analog Input
V
oltage
Analog Input
Voltage
Bias = -25%
MV1000ParameterGuide_E_conditional.book 193 ページ ２０１３年１０月１１日 金曜日 午後８時１８分
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