Omron MX2 Series User Manual

7 Other Functions
7 - 39
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
7-5-7 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.
Function name
Data
Default
data
Unit
A141/A142
Calculation Frequency
Selection 1/2
00: Digital Operator (A020/A220)
01: Digital Operator (Volume)
(Enabled only when 3G3AX-OP01
is connected)
02: Analog voltage (terminal O) input
03: Analog current (terminal OI) input
04: Modbus communication
05: Option
07: Pulse train frequency
02 or 03
−
A143
Calculation Function
Operator Selection
00: Addition (A141 + A142)
01: Subtraction (A141 − A142)
02: Multiplication (A141  A142)
00
−
A001/A201
1st/2nd Frequency Refer-
ence Selection
10: Operation function output
02
−
A076
PID Feedback Selection
10: Operation function output
00
−
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.
7-5-8 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.
Function name
Data
Default
data
Unit
A145
Frequency Addition
Amount Setting
0.00 to 590.00
0.00
Hz
A146
Frequency Addition Sign
Selection
00: (Frequency reference) + (A145)
01: (Frequency reference) − (A145)
00
−
C001 to
C007
Multi-function Input 1 to
7 Selection
50: ADD (Set frequency A145 addition)
−
−
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%.)
7
7-5 Other Operation Functions
7-5-7 Frequency Calculation Function

Omron MX2 Series Specifications

General

Brand	Omron
Model	MX2 Series
Category	Inverter
Language	English