5.7 H: Terminal Functions
■ H3-10: Terminal A2 Function Selection
Determines the function assigned to analog input terminal A2. Refer to
Multi-Function Analog Input Terminal Settings
on page 185
for a list of functions and descriptions.
No.
Name
Setting Range
Default
H3-10
Terminal A 2 Function Selection
0 to 1F
1F
■ H3-11, H3-12: Terminal A2 Gain and Bias Setting
Parameter H3-11 sets the level o f the input value selected that is equal to 10 Vdc input to terminal A2.
Parameter H3-12 sets the level o f the input value selected that is equal to 0 V at terminal A2.
Both can be used to adjust the characteristics o f the analog input signal to terminal A2. The settings work in the same
way as parameters H3-03 and H3-04 for analog input A1.
No.
Name
Setting Range
Default
H3-11
Terminal A 2 Gain Setting
-999.9 to 999.9%
100.0%
H3-12
Terminal A 2 B ias Setting
-999.9 to 999.9%
0.0%
■ 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 prevents erratic drive control when using a “noisy” analog reference. Drive operation becomes
more stable as the programmed time becomes longer, but it also becomes less responsive to rapidly changing analog
signals.
No.
Name
Setting Range
Default
H3-13
Analog Input Filter Time Constant
0.00 to 2.00 s
0.03 s
■ H3-16/H3-17: Offset for Terminal A1/A2
Parameters H3-16 and H3-17 set the offset applied analog input values from terminals A1 and A2.
Although adjustment is rarely required, these parameters can be used for zero adjustment o f the analog inputs.
No.
Name
Setting Range
Default
H3-16
Offset for Terminal A1
- 5 0 0 to 500
0
H 3-17
Offset for Terminal A2
- 5 0 0 to 500
0
■ Multi-Function Analog Input Terminal Settings
Refer to
Table 5.13
for information on how H3-02 and H3-10 determine functions for terminals A1 and A2.
Note: The scaling o f all input functions depends on the gain and bias settings for the analog inputs. Set these to appropriate values
when selecting and adjusting analog input functions.
Table 5.13 Multi-Function Analog Input Terminal Settings
Setting
Function
Page
0
Speed reference bias
1 8 6
2
Auxiliary speed reference 1 (used as a second speed reference)
1 8 6
3
Auxiliary speed reference 2 (used as a third speed reference)
1 8 6
14
Torque compensation (load cell input)
1 8 6
1F
N ot used (through m ode)
1 8 6
YASKAWA ELECTRIC SIEP C710616 33D YASKAWA AC Drive L1000A Technical Manual
185
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