Omron SYSDRIVE MX SERIES User Manual page 101

Analog Input (FV, FI)
The Inverter has two types of analog input terminals.
FV-FC terminal: 0 to 10 V (voltage input)
FI-FC terminal: 4 to 20 mA (current input)
Simultaneous inputs are not acceptable. Do not connect the signal lines for inputs FV and FI
simultaneously.
Parameter No. Function name
A005 FV/FI selection
Related functions
This function is enabled with the frequency reference set to the terminal block (A001 or A201 = 01).
The settings are as follows. (VR: FREQ adjuster)
A005 set value
AT terminal input status
Analog input enabled
If AT is not allocated to any of the multi-function input, this means the AT input = OFF in the above
table.
External Frequency (Voltage/Current) Adjustment
External Analog Input (Frequency Reference)
FV-FC terminal: 0 to 10 V (voltage input)
FI-FC terminal: 4 to 20 mA (current input)
Also set an output frequency for the FREQ adjuster on the Digital Operator.
Parameter No. Function name
A011
A101 FV/FI/VR start frequency
A151
A012
A102 FV/FI/VR end frequency
A152
A013
A103 FV/FI/VR start ratio
A153
A014
A104 FV/FI/VR end ratio
A154
A015
A105 FV/FI/VR start selection
A155
Data
00: Switches between FV/FI via terminal AT
01: Operation via terminal AT is disabled
02: Switches between FV/FREQ adjuster via
terminal AT
03: Switches between FI/FREQ adjuster via
terminal AT
A011 to A016, A101 to A105, A151 to A155, C001 to C006
00 01

OFF ON
FV-FC FI-FC FV-FI
Data
0.00 to 400.0
(Set start/end frequency.)
0. to 100.
(Set a start/end ratio relative to an
external frequency reference of 0 to 10 V
and 4 to 20 mA.)
00: Start frequency (A011 set value)
01: 0 Hz
4-2 Function Mode
Default setting
00
02
OFF ON OFF
FV-FC VR FI-FC
Default setting
0.0
0.
100.
01
Unit
4

03
ON
VR
Unit
Hz
%

4-10