5 Basic Settings
5 - 30
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
To use a sum of multiple analog inputs to set the frequency reference, set the parameters as follows.
This enables the sum of three analog inputs to the frequency reference input (voltage reference),
frequency reference input (current reference), and auxiliary frequency reference input (Voltage
reference) terminals to be set as the frequency reference inverter.
In the FE Selection (A006), set the operation to be performed if the sum of these three analog inputs is
negative.
• 01: FV/FI auxiliary frequency reference (not reversible)
The frequency is limited to 0 Hz, and the motor does not rotate in reverse direction to the RUN
command.
• 02: FV/FI auxiliary frequency reference (reversible)
The motor rotates in a reverse direction to the RUN command.
• Frequency reference input (Voltage reference), between terminal FV and FC: 0 to 9.8 VDC
• Frequency reference input (Current reference), between terminal FI and FC: 4 to 19.8 mA
• Auxiliary frequency reference input (Voltage reference), between terminal FE and FC: –9.8 to 9.8
VDC
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 Sum of Multiple Analog Inputs
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: Switches between FV and FI via
terminal AT
00 –
A006 FE Selection
01: FV/FI auxiliary frequency reference
(Not reversible)
02: FV/FI auxiliary frequency reference
(Reversible)
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).
––
V
A ±V
++
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