YASKAWA A1000 Technical Manual page 260

5.7 H: Terminal Functions

H3-16 to H3-18 Terminal A1/A2/A3 Offset
Parameters H3-16 to H3-18 set the offset level of the selected input value to terminal A1, A2 or A3 that is equal to 0 Vdc
input. These parameters rarely need adjustment.
No.
H3-16
H3-17
H3-18

Multi-Function Analog Input Terminal Settings
See Table 5.41 for information on how H3-02, H3-10, and H3-06 determine functions for terminals A1, A2, and A3.
Note: The scaling of 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.
Setting
0 Frequency bias
1 Frequency gain
2 Auxiliary frequency reference 1
3 Auxiliary frequency reference 2
4 Output voltage bias
5 Accel/decel time gain
6 DC Injection Braking current
7 Torque detection level
8 Stall Prevention level during run
9 Output frequency lower limit level
B PID feedback
C PID setpoint
D Frequency bias
E Motor temperature (PTC input)
<1> This function is available in models CIMR-A4A0930 and 4A1200.
Setting 0: Frequency bias
The input value of an analog input set to this function will be added to the analog frequency reference value. When the
frequency reference is supplied by a different source other than the analog inputs, this function will have no effect. Use
this setting also when only one of the analog inputs is used to supply the frequency reference.
By default, analog inputs A1 and A2 are set for this function. Using A1 and A2 at the same time increases the frequency
reference by the total of all inputs.
Example: If the analog frequency reference from analog input terminal A1 is 50% and a bias of 20% is applied by analog
input terminal A2, the resulting frequency reference will be 70% of the maximum output frequency.
Setting 1: Frequency gain
The input value of an analog input set to this function will be multiplied with the analog frequency reference value.
Example: If the analog frequency reference from analog input terminal A1 is 80% and a gain of 50% is applied from
analog input terminal A2, the resulting frequency reference will be 40% of the maximum output frequency.
Setting 2: Auxiliary reference 1
Sets the auxiliary frequency reference 1 when multi-step speed operation is selected.
Selection on page 198 for details.
Setting 3: Auxiliary reference 2
Sets the auxiliary frequency reference 2 when multi-step speed operation is selected.
Selection on page 198 for details.
Setting 4: Output voltage bias
Voltage bias boosts the output voltage of the V/f curve as a percentage of the maximum output voltage (E1-05). Available
only when using V/f Control.
260
Name
Terminal A1 Offset
Terminal A2 Offset
Terminal A3 Offset
Table 5.41 Multi-Function Analog Input Terminal Settings
Function Page Setting
260 F Through mode
260 10 Forward torque limit
260 11 Reverse Torque Limit
260 12 Regenerative torque limit
260 13 Torque limit using torque reference/speed control
261 14 Torque compensation
261 15 General torque limit
261 16 Differential PID feedback
261 17 Motor Thermistor (NTC)
<1>
261 1F Through mode
261 30 DriveWorksEZ analog input 1
261 31 DriveWorksEZ analog input 2
262 32 DriveWorksEZ analog input 3
262 –
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
Setting Range
-500 to 500
-500 to 500
-500 to 500
Function
–
Refer to Multi-Step Speed
Refer to Multi-Step Speed
Default
0
0
0
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