Parameter Details
11
11.8 H: Terminal Functions
YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual 725
Figure 11.72 Frequency Reference When You Set the Bias to a Negative Number
■ MEMOBUS/Modbus Multi-Function AI1 to 3 Function Selection
Allows the MFAI function to be assigned to MEMOBUS register 15C1 to 15C3 (Hex.) [Mbus Reg 15C1h to
15C3h Input Function]. Select the function with H3-40 to H3-42 [Mbus Reg 15C1h to 15C3h Input Function] and
set the input filter with H3-43 [Mbus Reg Inputs FilterTime Const].
Table 11.33 MEMOBUS Multi-Function AI Command Register
Register No.
(Hex.)
Name Range
*1
Parameter
15C1 Mbus Reg 15C1h Input Function -32767 to 32767 H3-40
15C2 Mbus Reg 15C2h Input Function -32767 to 32767 H3-41
15C3 Mbus Reg 15C3h Input Function -32767 to 32767 H3-42
*1 Set as 100% = 4096.
Figure 11.73 Functional Block Diagram for MEMOBUS Multi-Function AI Command 1
Note:
• Refer to H3-xx “MFAI Function Selections” for the analog input setting values.
• Set H3-40 to H3-42 = F when not using the terminal. The through mode function is not supported.
• The following MFAI terminals cannot be selected with H3-40 to H3-42.
H3-xx Setting Value Function
0 Frequency Reference
1 Frequency Gain
2 Auxiliary Frequency Reference 1
3 Auxiliary Frequency Reference 2
◆ H3: MFAI Parameters
■ H3-01: Terminal A1 Signal Level Select
No.
(Hex.)
Name Description
Default
(Range)
H3-01
(0410)
Terminal A1 Signal Level
Select
Sets the input signal level for MFAI terminal A1.
0
(0, 1)
0 : 0 to 10 V (Lower Limit at 0)
Inputs the voltage signal of 0 V to 10 V. The signal is reset to 0% when it becomes a negative number due to gain
and bias adjustment.
1 : -10 to +10V (Bipolar Reference)
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