YASKAWA GA800 Technical Reference page 848

12.7 F: Options
1 : 3 Channels Added Together
Set b1-01 = 3 [Option PCB] to set addition input.
You can input the frequency reference directly. The sum value when you add the input from terminals V1 to V3
becomes the frequency reference.
Set F2-01 = 1 to use the AI-A3 card as addition input.
Figure 12.75 shows addition input. Use F2-02 [Analog Input Option Card Gain] and F2-03 [Analog Input Option
Card Bias] to adjust the analog reference gain and bias for addition input.
Use F2-02 and F2-03 to Adjust the Input Status
When the bias set in F2-03 is 0%, the gain in F2-02 and the addition input value set the ratio (%) of the maximum
output frequency output as the frequency reference.
Note:
A voltage input of 10 V or a current input of 20 mA is the 100% value for each channel.
The bias set in F2-03 sets the ratio (%) of the maximum output frequency output as the frequency reference when the
addition input value is 0%.
Note:
A voltage input of 0 V or a current input of 4 mA is the 0% value for each channel.
• Example 1:
When the gain set in F2-02 is 50%, the bias set in F2-03 is 0%, and the addition input value is 100%, the frequency
reference is 50% of the maximum output frequency. When the addition input value is 200%, the frequency
reference is 100% of the maximum output frequency.
• Example 2:
When the gain set in F2-02 is 200%, the bias set in F2-03 is 0%, and the addition input value is 50%, the frequency
reference is equivalent to the maximum output frequency. The frequency reference will not be more than the
maximum output frequency, although the addition input value is 50% or higher.
• Example 3:
848
Figure 12.74 Analog Input Reference Individual Input Block Diagram
Figure 12.75 Analog Input Reference Addition Input Block Diagram
YASKAWA SIEPC71061737D GA800 Drive Technical Reference