Yaskawa AC Drive-P1000 Industrial Fan - Manual (Page 227)

No. Name Setting Range Default
H3-16 Terminal A1 Offset -500 to 500 0
H3-17 Terminal A2 Offset -500 to 500 0
H3-18 Terminal A3 Offset -500 to 500 0
n Multi-Function Analog Input Terminal Settings
See Table 5.34 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.
Table 5.34 Multi-Function Analog Input Terminal Settings
Setting Function Page
0 Frequency Bias 227
1 Frequency Gain 227
2 Auxiliary Frequency Reference 1 227
3 Auxiliary Frequency Reference 2 227
4 Output Voltage Bias 227
5 Accel/Decel Time Gain 227
6 DC Injection Braking Current 228
7 Torque Detection Level 228
8 Stall Prevention Level During Run 228
9 Output Frequency Lower Limit Level 228
Setting Function Page
B PID Feedback 228
C PID Setpoint 228
D Frequency Bias 228
E Motor Temperature (PTC Input) 229
16 Differential PID Feedback 229
17 <1> Motor Thermistor (NTC) 229
1F Through Mode 229
25 Secondary PI Setpoint 229
26 Secondary PI Feedback 229
<1> This function is only available in models 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. Simultaneously using A1 and A2 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. Refer to Multi-Step Speed Selection on
page 181 for details.
Setting 3: Auxiliary Reference 2
Sets the auxiliary frequency reference 2 when multi-step speed operation is selected. Refer to Multi-Step Speed Selection on
page 181 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.
Setting 5: Accel/Decel Time Gain
Adjusts the gain level for the acceleration and deceleration times set to parameters C1-01 through C1-04.
The drive acceleration time is calculated by multiplying the gain level to C1-oo as follows:
C1-oo × Accel/decel time gain = Drive accel/decel time
5.7 H: Terminal Functions
YASKAWA SIEP YAIP1U 01B AC Drive - P1000 Technical Manual 227
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Parameter Details