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5 Basic Settings
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
5-5 Frequency Reference Settings
5
5-5-1 Frequency Reference Selection
To use an analog voltage input or analog current input to set the inverter frequency reference, set the
parameters as follows.
This enables the frequency reference input (voltage reference) or frequency reference input (current
directive) terminal.
If inputs are made to both the frequency reference input (voltage reference) and frequency reference
input (current reference) terminals, the sum of the two analog input values will be set as the inverter
frequency reference.
• Frequency reference input (Voltage reference), between terminal FV and FC: 0 to 10 VDC
• Frequency reference input (Current reference), between terminal FI and FC: 4 to 20 mA
Note By default, each analog input signal is set to reach the maximum frequency at 9.8 V or 19.8 mA.
*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 Analog Current Input
Parameter No. Function name Data
Default
data
Unit
A001
Frequency
Reference Selection
01: Control circuit terminal block
(Analog input)
02 –
A005
FV/FI Selection
*1
00: Switching between FV and FI via
terminal AT
00 –
A006 FE Selection
03: FE disabled
03 –
C001 to C008
Multi-function Input
S1 to S8 Selection
Do not set C001 to C008 to 16
(
Ter mi nal AT: Analog input switching).
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