Hitachi SJ Series, User Manual

Page: 178 / 786

12-4-9
Chapter 12 Inverter Functions
12.4.7 Command by sequence control
(EzSQ)
• Want to use Set-Freq to make a command in the
EzSQ function which is set from a PC.
• A frequency command can be made through the
code programmed in EzSQ if Set-Freq is used in the
EzSQ programming and the frequency command is
set from EzSQ.
Parameters
12.4.8 Command by PID control
• Want to use PID control to control a fan or pump.
• Want to use process control.
• To use the PID control for motor control, PID
arithmetic is set in the frequency command
selection after the PID function is set.
Parameters
• A program created on PC needs to be downloaded
from the PC to the inverter.
• Downloaded program begins working when the
program action of the EzSQ function is enabled.
• For details, see the instruction manual of EzSQ.
• To give a command from the PID control,
parameters of the PID control function need to be
set. For details, see “12.10 Process control in
accordance with system.”
Item Parameters Data Description
Main speed command
selection
[AA101] 14
Frequency command from the program function
EzSQ enabled.
EzSQ function selection [UE-02]
00 Actions of the downloaded programs disabled.
01
The program starts when [PRG] terminal
is made ON.
02
The program starts after the setting or power
activation.
Item Parameters Data Description
Main speed command
selection [AA101] 15 An arithmetic result of the PID control is output.
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