Hitachi SJ Series User Manual page 179

Chapter 12
12.4.9 Selecting and calculating two
commands to make a command
Ｑ
• Want to multiply gain to the command frequency.
• Want to make a command with two input values
summed up.
• Want to subtract a command to make
forward/reverse rotation.
• Want to switch two commands.
Parameters
Item Parameters
Main
speed
[AA101]
command
selection
Main speed
command [AA102]
selection
Operator
[AA105]
selection
Input
terminal [CA-01]~[CA-11]
function
Ａ
• By selecting an operator, one 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.
Data
01: Ai1-L input, 02: Ai2-L input, 03: Ai3-L input, 07: parameter
setting, 08: RS485 communication, 12: pulse string input
01~15
(main body), 14: program function EzSQ, 15: PID arithmetic,
00: disabled (only for auxiliary speed)
00 The arithmetic function is disabled and can be switched by
using the [SCHG] terminal.
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.
[SCHG] Main speed and auxiliary speed are switched from
each other for the operation.
015
OFF: Main speed is effective, ON: Auxiliary speed is effective.
*) The operator needs to be [AA105]=00.
12-4-10
Inverter Functions
Description