YASKAWA GA800 Programming Manual page 407

Example Analog
Setting of Terminal A1
Input Settings
• H3-02 = 0 [Terminal A1 Function
Frequency
reference with the Selection = Frequency Reference]
gain setting
• H3-03: 200.0 [Terminal A1 Gain
adjusted
Setting = 200%]
• H3-04 = 0.0 [Terminal A1 Bias
Setting = 0.0%]
• H3-02 = 0 [Frequency Reference]
Frequency
reference with the
• H3-03 = 100.0 [100.0%]
negative number
• H3-04 = -25.0 [-25.0%]
bias set
■
MEMOBUS/Modbus Multi-Function AI1 to 3 Function Selection
Let the MFAI function be assigned to MEMOBUS/Modbus register 15C1 to 15C3 (Hex.) [Mbus Reg 15C1h through
15C3h Input Function]. Use H3-40 to H3-42 [Mbus Reg 15C1h through 15C3h Input Function] to set the function
and use H3-43 [Mbus Reg Inputs FilterTime Const] to set the input filter.
Register No.
(Hex.)
15C1
15C2
15C3
*1 Set as 100% = 4096.
Figure 2.103 Functional Block Diagram for MEMOBUS Multi-Function AI Command 1
YASKAWA TOEPYAIGA8002B GA800 Drive Programming
• 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 V or more signal, E1-04 [Maximum Output Frequency] will limit the drive output and the
frequency reference will be 100%.
• When you input a 0 V signal, the frequency reference will be -25%.
• When H3-01 = 0 [Terminal A1 Signal Level Select = 0 to 10V (Lower Limit at 0)]:
– 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%.
• When H3-01 = 1 [-10 to +10V (Bipolar Reference)]:
– When you input a 0 V to 2 V signal, it enables signals of positive and negative polarities and the motor rotates in
reverse.
Table 2.65 MEMOBUS Multi-Function AI Command Register
Name
Mbus Reg 15C1h Input Function
Mbus Reg 15C2h Input Function
Mbus Reg 15C3h Input Function
2.8 H: Terminal Functions
Frequency Reference
*1
Range
-32767 to 32767
-32767 to 32767
-32767 to 32767
Parameter
H3-40
H3-41
H3-42
2
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