YASKAWA AC Drive GA700 High Performance Type Technical Manual

H3: Analog Inputs

Warning

Sudden Movement Hazard

Do test runs and examine the drive to make sure that the command references are correct.

If you set the command reference incorrectly, it can cause damage to the drive or serious injury or death.

Drives have two analog input terminals: terminals A1 and A2. Use H3 parameters to set the functions to these analog input terminals and adjust signal levels.

Table 1 shows the functions that you can set to analog input terminals. Use H3-02 and H3-10 [MFAI Function Select] to set functions.

Table 1. Multi-Function Analog Input Terminal Settings
Setting Value	Function	Reference
0	Frequency Reference	0: Frequency Reference
1	Frequency Gain	1: Frequency Gain
2	Auxiliary Frequency Reference 1	2: Auxiliary Frequency Reference 1
3	Auxiliary Frequency Reference 2	3: Auxiliary Frequency Reference 2
4	Output Voltage Bias	4: Output Voltage Bias
5	Accel/Decel Time Gain	5: Accel/Decel Time Gain
6	DC Injection Braking Current	6: DC Injection Braking Current
7	Torque Detection Level	7: Torque Detection Level
8	Stall Prevent Level during Run	8: Stall Prevent Level during Run
9	Output Frequency Lower Limit	9: Output Frequency Lower Limit
B	PID Feedback	B: PID Feedback
C	PID Setpoint	C: PID Setpoint
D	Frequency Bias	D: Frequency Bias
E	Motor Temperature (PTC Input)	E: Motor Temperature (PTC Input)
F	Through Mode	F: Not Used
10	Forward Torque Limit	10: Forward Torque Limit
11	Reverse Torque Limit	11: Reverse Torque Limit
12	Regenerative Torque Limit	12: Regenerative Torque Limit
13	Torque Reference / Torque Limit	13: Torque Reference / Torque Limit
14	Torque Compensation	14: Torque Compensation
15	General Torque Limit	15: General Torque Limit
16	PID DifferentialFdbk	16: Differential PID Feedback
1F	Through Mode	1F: Not Used
30	DWEZ Analog Input 1	30: DWEZ Analog Input 1
31	DWEZ Analog Input 2	31: DWEZ Analog Input 2

Note:

All analog input scaling uses gain and bias for adjustment. Set the gain and bias values correctly.


Example Analog Input Settings	Terminal A1 Setting	Frequency Reference
Frequency Reference When You Adjust the Gain Setting	H3-02 = 0 [Terminal A1 Function Selection = Frequency Reference] H3-03 = 200.0 [Terminal A1 Gain Setting = 200%] H3-04 = 0.0 [Terminal A1 Bias Setting = 0.0%]	When you input a 10 V signal, the frequency reference will be 200%. When you input a 5 V signal, the frequency reference will be 100%. When you input a 5 V or more signal, E1-04 [Maximum Output Frequency] will limit the drive output and the frequency reference will be 100%.
Frequency Reference When You Set the Bias to a Negative Number	H3-02 = 0 [Frequency Reference] H3-03 = 100.0 [100.0%] H3-04 = -25.0 [-25.0%]	When you input a 0 V signal, the frequency reference will be -25%. When H3-01 = 0 [Terminal A1 Signal Level Select = 0 V to 10 V (Lower Limit at 0)] When you input a 0 V to 2 V signal, the frequency reference will be 0%. When you input a 2 V to 10 V signal, the frequency reference will be 0% to 100%. When H3-01 = 1 [0 V to 10 V (Without Lower Limit)] When you input a 0 V to 2 V signal, it enables signals of positive and negative polarities and the motor rotates in reverse.