YASKAWA V1000 Quick Start Manual page 68

4.5 Basic Drive Setup Adjustments
Figure 4.6
Control Circuit Terminal A2 (Voltage/Current Input):
Use control circuit Terminal A2 when supplying the frequency reference with a current
signal between 4 to 20 mA. Use control circuit Terminal A1 for supplying a voltage
reference.
Switching between Main/Auxiliary Frequency References
To configure the frequency reference to switch between analog input A1 and A2 (main/aux
frequency switch), use the following setup:
1. Set the frequency reference source to terminals (b1-01 = "1").
2. Set one of the digital inputs to auxiliary reference 1, H1-
3. Set input signal type of terminal A2 using dip switch S1 and parameter H3-09.
4. Set the function of analog input A2 to Auxiliary frequency (H3-10 = "3").
When the digital input assigned in step 2 is off, terminal A1 is the frequency reference input.
If it is closed, the A2 input value becomes the frequency reference. The active acceleration /
deceleration times are used for the change-over between the values
Figure 4.7
2 kohm
Figure 4.7 Switching between Main/Auxiliary Frequency References
68
0 to 10 V
2 kΩ
Figure 4.6 Voltage Input for the Main Frequency Reference
2 kohm
YASKAWA ELECTRIC TOEP C710606 14A YASKAWA AC Drive - V1000 Quick Start Guide
Drive
V (+10.5 V 20 mA)
Main Frequency Reference
A1
(voltage input)
A2 Auxiliary Frequency Reference
(voltage/current input)
AC
Frequency Reference
Common
Drive
＋V (+10.5 V, 20 mA)
Main Frequency Reference
A1
(voltage input)
A2
Aux Frequency Reference 1
(voltage input)
AC Frequency Reference Common
S5 Multi-Function Digital Input
SC Digital Input Common
= "3" (preset for terminal S5).