12.8 H: Terminal Function Selection
670 YASKAWA SIEPC71061753C GA500 Technical Manual
■ H3-03: Terminal A1 Gain Setting
No.
(Hex.)
Name Description
Default
(Range)
H3-03
(0411)
RUN
Terminal A1 Gain Setting
Sets the gain of the analog signal input to MFAI terminal A1.
100.0%
(-999.9 - +999.9%)
This parameter sets the quantity of reference for the function set for terminal A1 as a percentage when 10 V (or 20
mA) is input.
Use this parameter and H3-04 [Terminal A1 Bias Setting] to adjust the characteristics of the analog input signal to
terminal A1.
■ H3-04: Terminal A1 Bias Setting
No.
(Hex.)
Name Description
Default
(Range)
H3-04
(0412)
RUN
Terminal A1 Bias Setting
Sets the bias of the analog signal input to MFAI terminal A1.
0.0%
(-999.9 - +999.9%)
This parameter sets the bias for the function set for terminal A1 as a percentage when 0 V (4 mA or 0 mA) is
input.
Use this parameter and H3-03 [Terminal A1 Gain Setting] to adjust the characteristics of the analog input signal to
terminal A1.
■ H3-09: Terminal A2 Signal Level Select
No.
(Hex.)
Name Description
Default
(Range)
H3-09
(0417)
Terminal A2 Signal Level
Select
Sets the input signal level for MFAI terminal A2.
2
(0 - 3)
0 : 0-10V (LowLim=0)
The voltage signal is 0 Vdc to 10 Vdc. The minimum input level limit is 0%. The drive will read a negative input
signal caused by gain and bias settings as 0%.
1 : 0-10V (Without Lower Limit)
The voltage signal is 0 Vdc to 10 Vdc. When this setting is used as the frequency reference, the motor runs
reverse when the Forward run command is input, or runs forward when the Reverse run signal is input, while the
signal is a negative number due to gain and bias.
2 : 4 to 20 mA
The current signal is 4 mA to 20 mA. The minimum input level is limited to 0%, so that a negative input signal
due to gain and bias settings will be read as 0%.
3 : 0 to 20 mA
The current signal is 0 mA to 20 mA. The minimum input level is limited to 0%, so that a negative input signal
due to gain and bias settings will be read as 0%.
Note:
When H3-09 = 0, 1, set DIP switch S1 to the V side (voltage). When H3-09 = 2, 3, set DIP switch S1 to the I side (current). The default
setting is the I side (current).
■ H3-10: Terminal A2 Function Selection
No.
(Hex.)
Name Description
Default
(Range)
H3-10
(0418)
Terminal A2 Function
Selection
Sets the function for MFAI terminal A2.
0
(0 - 32)
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