YASKAWA A1000 Series Technical Manual page 236

5.7 H: Terminal Functions
When analog input A3 is used as PTC input set H3-06 = E and make sure switch S4 on the terminal board is set for PTC
input. Also refer to Terminal A3 Analog/PTC Input Selection on page
No.
H3-06
H3-07, H3-08: Terminal A3 Gain and Bias Setting
■
Parameter H3-07 sets the level of the selected input value that is equal to 10 Vdc input at terminal A3 (gain).
Parameter H3-08 sets the level of the selected input value that is equal to 0 V input at terminal A3 (bias).
No.
H3-07
H3-08
H3-09: Terminal A2 Signal Level Selection
■
Selects the input signal level for analog input A2. Be sure to also set DIP switch S1 on the terminal board accordingly for
a voltage input or current input.
No.
H3-09
Setting 0: 0 to 10 Vdc
The input level is 0 to 10 Vdc.
Setting 1: –10 to 10 Vdc
The input level is –10 to 10 Vdc.
Setting 2: 4 to 20 mA Current Input
The input level is 4 to 20 mA. Negative input values by negative bias or gain settings will be limited to 0%.
Setting 3: 0 to 20 mA Current Input
The input level is 0 to 20 mA. Negative input values by negative bias or gain settings will be limited to 0%.
H3-10: Terminal A2 Function Selection
■
Determines the function assigned to analog input terminal A2.
on page 237 for a list of functions and descriptions.
No.
H3-10
H3-11, H3-12: Terminal A2 Gain and Bias Setting
■
Parameter H3-11 sets the level of the input value selected that is equal to 10 Vdc input or 20 mA input to terminal A2.
Parameter H3-12 sets the level of the input value selected that is equal to 0 V, 4 mA or 0 mA input at terminal A2.
Both can be used to adjust the characteristics of the analog input signal to terminal A2. The setting works in the same
way as parameters H3-03 and H3-04 for analog input A1.
No.
H3-11
H3-12
H3-13: Analog Input Filter Time Constant
■
Parameter H3-13 sets the time constant for a first order filter that will be applied to the analog inputs.
An analog input filter can be used to prevent erratic drive control when a "noisy" analog reference is used. The drive
operation becomes more stable the longer the time programmed, but it becomes less responsive to rapidly changing
analog signals.
236
Name
Terminal A3 Function Selection
Name
Terminal A3 Gain Setting
Terminal A3 Bias Setting
Name
Terminal A2 Signal Level Selection
Refer to Setting 0: 0 to 10 Vdc on page 234
Refer to Setting 1: –10 to 10 Vdc on page
Name
Terminal A2 Function Selection
Name
Terminal A2 Gain Setting
Terminal A2 Bias Setting
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
79.
Setting Range
Setting Range
-999.9 to 999.9%
-999.9 to 999.9%
Setting Range
234.
Refer to Multi-Function Analog Input Terminal Settings
Setting Range
Setting Range
-999.9 to 999.9%
-999.9 to 999.9%
Default
0 to 31
Default
100.0%
0.0%
Default
0 to 3
Default
0 to 31
Default
100.0%
0.0%
2
2
0