Omron JX-A4004, User Manual, Page: 88 / 220

4-10
4-2 Function Mode
4
Func
tions
* To switch to the 2nd max. frequency, allocate 08 (SET) to the multi-function input terminal and then turn it on.
Analog Input (O, OI, VR)
Two types of external analog inputs are available for frequency reference plus the built-in VR
For voltage input, you can set a frequency from 0 to maximum by applying a voltage from 0 to 10 V
between inputs O and L. For current input, apply 4 to 20 mA between inputs OI and L. Note that
voltage and current cannot be input simultaneously. Also, do not connect the signal lines for inputs
O and OI simultaneously.
Switching between the inputs could be done by a digial input setting parameter A005.
Allocate AT (16) to any of the multi-function inputs with the frequency reference set to the terminal
block (A001 or A201 = 01). .
The settings are as follows. (VR: FREQ adjuster)
If AT is not allocated to any of the multi-function input, this means the AT input = OFF in the above
table..
Parameter No. Function name Data Default setting Unit
A004 Maximum frequency
30 to 400 50.0 Hz
*
A204
2nd maximum
frequency
Related parameters A003, A203, A081, A082
Reference voltage (10 V)
Voltage input
Current input
Analog ground
H O OI L
[AT]
A001
Inverter VR
Frequency setting
H O OI L
Parameter No. Function name Data Default setting Unit
A005 O/OI selection
00: Switches between O/OI via terminal
AT
02: Switches between O/FREQ adjuster
via terminal AT
03: Switches between OI/FREQ adjuster
via terminal AT
04: O input only
05: OI input only
02
⎯
Related parameters A011 to A016, A101 to A105, A151 to A155, C001 to C005, C081, C082
Required settings A001 = 01
Data Symbol Function name Status Description
16 AT Analog input switching
ON
Depends on the combination with the A005
setting (see the table below).
OFF Same as above.
Related parameters
C001 to C005
A005 set value 00 02 03 04 05
AT terminal input status OFF ON OFF ON OFF ON OFF ON OFF ON
Analog input enabled O-L OI-L O-L VR OI-L VR O-L OI-L