Hitachi SJ300 Series Settings, Loop Gain, Internal Speed, Opt, Code, Input, Symbol, inputs:, Required, Valid for, Parameter, Description, Description, Function Name

4–31

SJ300 Inverter

Internal SpeedLoop Gain

Settings

When sensorless vector control, 0Hz sensorless vector control, or vector control with sensor is selected for the control method, the Control Gain Switching function selects between two sets of gains in the internal speed loop. These gains are used in proportional and integral compensa- tion. Use option code 26 to assign the [CAS] function to an intelligent input terminal. Use option code 43 to select between P and PI control.

Opt.

Symbol

Function Name

Input

Description

Code

State

26

CAS

Control Gain

ON

Gains in parameters H070, H071, and

Switching

H072 are selected

OFF

Gains in parameters H050, H051, H052;

or, H250, H251, H252 (2nd motor) are

selected

43

PPI

P / PI Control

ON

Selects Proportional control (P)

Switching

OFF

Selects Proportional-Integral control (PI)

Valid for

C001, C002, C003, C004,

Example: (Requires input configuration—

inputs:

C005, C006, C007, C008

see page 3–47. Jumper position shown is

for –xFU/-xFR models; for –xFE models,

Required

A044 / A244 / A344 =

see page 4–12.)

CAS

03 (SLV), or

PPI

settings:

04 (0 Hz domain), or

TH

FW

8

CM1

5

3

1

05 (V2)

P24

PLC

CM1

7

6

4

2

Notes:

•When Control Gain Switching is not selected for an intelligent input terminal, the default

gains in effect correspond to the OFF state of	See I/O
[CAS].
	specs on
	page 4–9.

The table below lists the functions and parameter settings related to internal speed loop gains.

Function Code	Parameter	Setting Range	Description
		03	SLV (does not use A344)
A044 / A244 /	Control method	04	0-Hz Domain SLV (does not
			use A344)
A344	selection
		05	V2 (does not use A244 or
			A344)
C001 - C008	Intelligent input	43	PPI : P/I switching
	selection
H005 / H205	Speed response	0.001 to 65.53	No dimension
H050 / H250	PI proportional gain	0.0 to 999.9/1000	% gain
H051 / H251	PI integral gain	0.0 to 999.9/1000	% gain
H052 / H252	P proportional gain	0.01 to 10.00	No dimension
H070	PI proportional gain	0.0 to 999.9/1000	% gain
	for switching
H071	PI integral gain for	0.0 to 999.9/1000	% gain
	switching
H072	P proportional gain	0.0 to 10.0	No dimension
	for switching

Operations Monitoring and