Omron RX Series User Manual page 227

Using a Positive/Negative Analog Voltage Input
To use a positive/negative analog voltage input to set the frequency reference of inverter, set the
parameters as follows.
This enables inputs to the auxiliary frequency reference input (voltage reference) terminal only.
If a negative voltage is input to the auxiliary frequency reference input (voltage reference) terminal, the
motor will rotate in a reverse direction to the RUN command.
±V
• Auxiliary frequency reference input (Voltage reference), between terminal FE and FC:
VDC
Note By default, each analog input signal is set to reach the maximum frequency at 9.8 V or 19.8 mA.
Parameter No.
A001
A005
A006
C001 to C008
*1 If C001 to C008 is not set to 16 (AT), FV input and FI input reference values will be added according to the 01
to 03 setting.
Using an Analog Voltage Input or Volume Adjuster by Switching
To use an analog voltage input and the volume adjuster on the Digital Operator (Model: 3G3AX-OP01)
to set the frequency reference, set the following parameters.
This enables switching between the frequency reference input (voltage reference) and the volume
adjuster on the 3G3AX-OP01.
To switch the reference input, use the terminal AT (Analog input switching) allocated to a multi-function
input terminal.
V
• Auxiliary frequency reference input (Voltage reference), between terminal FE and FC: –9.8 to 9.8
VDC
• Volume adjuster on Digital Operator (Model: 3G3AX-OP01)
Note By default, each analog input signal is set to reach the maximum frequency at 9.8 V or 19.8 mA.
Parameter No.
A001
A005
A006
C001 to C008
*1 When the terminal AT is ON, the volume adjuster on the 3G3AX-OP01 is enabled.
High-function General-purpose Inverter 3G3RX-V1 User's Manual (I578-E1)
Function name
Frequency 01: Control circuit terminal block
Reference Selection (Analog input)
*1
Ignores the set data in A005.
FV/FI Selection
FE Selection 00: FE only (Reversible)
Do not set C001 to C008 to 16
Multi-function Input
S1 to S8 Selection Terminal
(
±V
Function name
Frequency 01: Control circuit terminal block
Reference Selection (Analog input)
02: Switches between FV and volume
FV/FI Selection adjuster via terminal AT (Enabled
only when 3G3AX-OP01 is used)
FE Selection 03: FE disabled
16: Terminal AT (Analog input
Multi-function Input
S1 to S8 Selection
switching)
Data
AT: Analog input switching).
Data
*1
5 Basic Settings
9.8 to 9.8
–
Default data Unit
02 –
00 –
03 –
– –
Default data Unit
02 –
00 –
03 –
– –
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