Omron SYSDRIVE 3G3RV Series User Manual page 223

nInputting the Frequency Reference Using Voltage (Analog Setting)
When b1-01 is set to 1, you can input the frequency reference from control circuit terminal A1 (voltage input),
or control circuit terminal A2 (voltage or current input).
Inputting Master Speed Frequency Reference Only (Asian Model)
If inputting the master speed frequency reference only, input the voltage reference to control circuit terminal
A1.
2-Step Switching: Master/Auxiliary (Asian Model)
If performing 2-step switching between master and auxiliary speed frequencies, input the master speed fre-
quency reference to control circuit terminal A1, and input the auxiliary speed frequency reference to A2.
When terminal S3 (multi-step speed command 1) is OFF, terminal A1 (master speed frequency reference) will
be the Inverter frequency reference, and when terminal S3 is ON, terminal A2 (auxiliary speed frequency ref-
erence) will be the Inverter frequency reference.
Setting Precautions
When inputting a voltage signal to terminal A2, observe the following precautions.
Turn OFF pin 2 on DIP switch S1 for switching between voltage and current (factory setting is ON).
•
2 kΩ (2 W)
+V (Power supply: 15 V,
20 mA)
A1 (Master speed frequency
reference)
A2 (Auxiliary speed frequency
(2 W) reference)
AC (Analog common)
Fig 6.4 Master Speed Frequency Reference Input
Master/
Auxiliary
0 to 10 V input
0 to 10 V
input
Fig 6.5 Master/Auxiliary Frequency Reference Input
Inverter
Inverter
S3 Multi-step speed
command 1
SC Sequence common
+V (Power supply: 15 V,
20 mA)
A1 (Master speed frequency
reference)
A2 (Auxiliary speed frequency
reference)
AC (Analog common)
DIP switch S1
Frequency Reference
6-
7