5.7 H: Terminal Functions
294 YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
Note:
All analog input scaling uses gain and bias for adjustment. Set the gain and bias values correctly.
Example Analog
Input Settings
Setting of Terminal A1 Frequency Reference
Frequency
reference with the
gain setting
adjusted
• H3-02 = 0 [Terminal A1 Function
Selection = Frequency Reference]
• H3-03: 200.0 [Terminal A1 Gain
Setting = 200%]
• H3-04 = 0.0 [Terminal A1 Bias
Setting = 0.0%]
• When you input a 10 V signal, the frequency reference will be 200%.
• When you input a 5 V signal, the frequency reference will be 100%.
When you input a 5 Vor more signal, E1-04 [Maximum Output Frequency] will limit the drive output and the
frequency reference will be 100%.
Frequency
reference with the
negative number
bias set
• H3-02 = 0 [Frequency Reference]
• H3-03 = 100.0 [100.0%]
• H3-04 = -25.0 [-25.0%]
• When you input a 0 V signal, the frequency reference will be -25%.
• When you input a 0 V to 2 V signal, the frequency reference will be 0%.
• When you input a 2 V to 10 V signal, the frequency reference will be 0% to 100%.
â– MEMOBUS/Modbus MFAI 1 to MFAI 3 Function Selection
Set the MFAI function to MEMOBUS/Modbus register 15C1 to 15C3 (Hex.) [MEMOBUS MFAI 1 to MFAI 3
Command]. Use H3-40 to H3-42 [Mbus Reg 15C1h to 15C3h Input Function] to set the function and use H3-43
[Mbus Reg Inputs FilterTime Const] to set the input filter.
Table 5.44 MEMOBUS Multi-Function AI Command Register
Register No.
(Hex.)
Name Range
*1
Parameter
15C1 MEMOBUS MFAI 1 Command -32767 to 32767 H3-40
15C2 MEMOBUS MFAI 2 Command -32767 to 32767 H3-41
15C3 MEMOBUS MFAI 3 Command -32767 to 32767 H3-42
*1 Set as 100% = 4096.
Figure 5.58 Functional Block Diagram for MEMOBUS MFAI Command 1
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