Chapter 4 Explanation of Functions
4 - 13
4.2.12 Frequency operation function
The frequency operation function allows you to use the result of an
arithmetic operation on two frequency commands as the actual
frequency command or PID feedback data.
To use the operation result as the actual frequency command,
specify "10" for the frequency source setting (A001).
To use the operation result as the PID feedback data, specify "10" for the PV source setting (A076).
Item Function code Data Description
Operation-target frequency
selection 1 and 2
A141/A142
00 Digital operator (A020/A220/A320)
(01)
Control on the digital operator
(Valid only when the OPE-SR is connected)
02 Input via the O terminal
03 Input via the OI terminal
04 Input via the RS485 terminal
05 Input from option board 1
06 Input from option board 2
07 Input of pulse train
Operator selection for
frequency operation
A143
00 Addition: (A141) + (A142)
01 Subtraction: (A141) - (A142)
02 Multiplication: (A141) x (A142)
Frequency source setting A001 10 Output of operation result
PV source setting A076 10 Output of operation result
Note 1: The [1] (up) and [2] (down) keys of the digital operator are ineffective when the frequency
operation function is enabled. Also, the frequency displayed by the output frequency monitoring
(d001), Scaled output frequency monitoring (d007), or output frequency setting (F001) cannot be
changed with key operations.
Note 2: The settings of "A141" and "A142" can be the same.
fO
f
O2
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