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6 Basic Parameter Settings
High-function General-purpose Inverter RX2 Series User’s Manual
6-4 Frequency Command Settings
6
6-4-8 Case where Command Is Given with Main Speed Command and Auxiliary Speed Command
By selecting an operator, you can either switch between main speed and auxiliary speed ([SCHG]
switching with [AA105]=00) or make a command (arithmetic frequency) ([AA105] not equal to 00) on
the basis of addition, subtraction, or multiplication of the two speeds.
Parameter
(Ex.1) Gain is multiplied.
[AA101]=01 ([Ai1] command)/[AA102]=07 (set [Ab110])/[AA105]=03 (multiplication)/[Ab110]=3.00(Hz)
6-4-8 Case where Command Is Given with Main Speed Command and
Auxiliary Speed Command
Item
Parameters
Data Description
Default
data
Main speed input
source selection,
1st-motor
[AA101]
01 to 15
01: Ai1-L input, 02: Ai2-L input,
03: Ai3-L input, 07: parameter setting,
08: RS485 communication,
12: pulse string input (main body),
13: Pulse string input: Option,
14: program function, 15: PID arithmetic,
00: disabled (only for auxiliary speed)
01
*1
*1. Default data when default data selection (UB-02) is set to 01.
Sub frequency input
source selection,
1st-motor
[AA102] 00
Calculation symbol
selection for Speed
reference, 1st-motor
[AA105]
00
The arithmetic function is disabled and can be
switched by using the [SCHG] terminal.
00
01
(Main speed) + (auxiliary speed) is used for the
command.
02
(Main speed) - (auxiliary speed) is used for the
command.
03
(Main speed) x (auxiliary speed) is used for the
command.
Input terminal function
[CA-01] to
[CA-11]
015
[SCHG] Main speed and auxiliary speed are
switched from each other for the operation.
OFF: Main speed is effective, ON: Auxiliary
speed is effective.
Note The operator needs to be [AA105]=00.
-
Calculation with Two Commands
Main speed
Analog input Ai1 command
[Ab110] command
Main speed x
auxiliary speed
Auxiliary speed
Frequency
command
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