Parameter Details
12
12.8 H: Terminal Functions
YASKAWA SIEPC71061705H GA700 Series Technical Manual 851
■ H3-42: Mbus Reg 15C3h Input Function
No.
(Hex.)
Name Description
Default
(Range)
H3-42
(0B62)
Mbus Reg 15C3h Input
Function
Sets the MEMOBUS AI3 function.
F
(4 - 2F)
You can use the MFAI function from MEMOBUS/Modbus communications. Use this parameter to set the
function. Sets the input for the function in MEMOBUS/Modbus register 15C3.
Refer to Multi-Function Analog Input Terminal Settings on page 851 for the setting values.
■ H3-43: Mbus Reg Inputs FilterTime Const
No.
(Hex.)
Name Description
Default
(Range)
H3-43
(117F)
Mbus Reg Inputs
FilterTime Const
Sets the time constant to apply a primary delay filter to the MEMOBUS analog input register
values.
0.00 s
(0.00 - 2.00 s)
◆ Multi-Function Analog Input Terminal Settings
This section gives information about the functions set with H3-02, H3-06, and H3-10.
■ 0: Frequency Reference
Setting Value Function Description
0 Frequency Reference
The input value from the MFAI terminal set with this function becomes the master frequency reference.
• You can copy the configuration to more than one of the analog input terminals A1 through A3. When you set
more than one analog input terminal with the master frequency reference, the sum value becomes the frequency
bias.
• If you use this function to set the analog input value as the master frequency reference, set b1-01 = 1
[Frequency Reference Selection 1 = Analog Input]. This setting value is the default value for terminals A1 and
A2.
• The frequency reference is the sum of the input values for terminals A1 and A2 when they are used at the same
time. For example, when a 20% bias is input to terminal A2 while a frequency reference of 50% is input from
terminal A1, the calculated frequency reference will be 70% of the maximum output frequency.
■ 1: Frequency Gain
Setting Value Function Description
1 Frequency Gain
The drive multiplies the analog frequency reference with the input value from the MFAI set with this function.
Example: When you set frequency gain for terminal A2
• H3-10 = 1 [Terminal A2 Function Selection = Frequency Gain]
• A 50% frequency gain is input to terminal A2
• A frequency reference of 80% is input from terminal A1
The calculated frequency reference is 40% of the maximum output frequency.
■ 2: Auxiliary Frequency Reference 1
Setting Value Function Description
2 Auxiliary Frequency
Reference 1
Sets Reference 2 through multi-step speed reference to enable the command reference (Auxiliary Frequency Reference 1) from
the analog input terminal set here. This value is a percentage where the Maximum Output Frequency setting is a setting value of
100%.
■ 3: Auxiliary Frequency Reference 2
Setting Value Function Description
3 Auxiliary Frequency
Reference 2
Sets Reference 3 through multi-step speed reference to enable the command reference (Auxiliary Frequency Reference 2) from
the analog input terminal set here. This value is a percentage where the Maximum Output Frequency setting is a setting value of
100%.
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