Frequency Calculation Function; Frequency Addition Function - Omron MX2 Series User Manual

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Frequency Calculation Function

The frequency calculation function enables the use of calculation results from two frequency reference
channels as a frequency reference or PID feedback value.
To use the calculation result as a frequency reference, set the 1st/2nd Frequency Reference Selection
(A001/A201) to 10 (Operation function output).
To use the calculation result as a PID feedback value, set the PID Feedback Selection (A076) to 10
(Operation function output).
Parameter
No.
Calculation Frequency
A141/A142
Selection 1/2
Calculation Function
A143
Operator Selection
1st/2nd Frequency Refer-
A001/A201
ence Selection
A076 PID Feedback Selection
Note 1. When this function is enabled, the remote operation function (UP/DWN) cannot be used. In addition, the
frequency settings in the Output Frequency Monitor (d001), Output Frequency Monitor (After Conver-
sion) (d007), and Output Frequency Setting/Monitor (F001) cannot be changed via the Digital Operator
keys.
2. A141 and A142 can have the same setting.
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Frequency Addition Function

Use this function to add or subtract the value set in the Frequency Addition Amount Setting (A145) to
the selected frequency reference value.
To use it, allocate one of the Multi-function Input 1 to 7 Selection (C001 to C007) to 50 (ADD).
The value set in A145 is added or subtracted when the terminal ADD is ON. Turning OFF the terminal
ADD resets the Frequency Addition Amount Setting (A145) to the selected frequency reference value.
Parameter
No.
Frequency Addition
A145
Amount Setting
Frequency Addition Sign
A146
Selection
Multi-function Input 1 to
C001 to
C007
7 Selection
Note 1. If the +/- sign in front of the frequency reference changes (from "−" to "+" or "+" to "−") as a result of oper-
ation, the rotation direction of the motor will be reversed.
2. When the PID function is used, this function is also enabled for the PID target value.
(Note that A145 can be set as a percentage of the maximum frequency in increments of 0.01%.)
Multi-function Compact Inverter 3G3MX2-EV2 User's Manual (I666-E1)
Function name
00:
01:
02:
03:
04:
05:
07:
00:
01:
02:
10:
10:
Function name
0.00 to 590.00
00:
01:
50:
Data
Digital Operator (A020/A220)
Digital Operator (Volume)
(Enabled only when 3G3AX-OP01
is connected)
Analog voltage (terminal O) input
Analog current (terminal OI) input
Modbus communication
Option
Pulse train frequency
Addition (A141 + A142)
Subtraction (A141 − A142)
Multiplication (A141  A142)
Operation function output
Operation function output
Data
(Frequency reference) + (A145)
(Frequency reference) − (A145)
ADD (Set frequency A145 addition)
7 Other Functions
Default
Unit
data
−
02 or 03
−
00
−
02
−
00
Default
Unit
data
0.00 Hz
−
00
− −
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