Yaskawa G5HHP Drive User Manual

Page 207

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7.5 Common Functions

7 - 43

Run command

OFF

ON

Maximum output

frequency

Deceleration time set for b3-03

Frequency

reference

that is set

Output frequency

Minimum baseblock time (L2-03)

b3-02

Output current

Fig 7.19

Speed Search Timing Chart

J

Timer Functions: b4-01, b4-02

D

The timer functions are enabled when the timer function input (setting: 18) and the timer function output

(setting: 12) are set for the multi-function input and multi-function output respectively.

D

These inputs and outputs serve as general-purpose I/O. Chattering of sensors, switches, and so on, can

be prevented by setting a delay time.

User

Change

during

Setting

Factory

Valid Access Levels

User

Constant

Number

Name

g

during

Opera-

tion

Setting

Range

Unit Factory

Setting

V/f

Control

V/f with

PG

Open

Loop

Vector

Flux

Vector

b4-01

Timer function ON-

delay time

x

0.0 to 300.0

s

0.0

A

A

A

A

b4-02

Timer function OFF-

delay time

x

0.0 to 300.0

s

0.0

A

A

A

A

D

When the timer function input ON time is longer than the value set for b4-01 (timer function ON-delay

time), the timer function output turns ON.

D

When the timer function input OFF time is longer than the value set for b4-02 (timer function OFF-delay

time), the timer function output turns OFF. An operation example of the timer function is shown in Fig-

ure 7.20.

Timer function

input

Timer function

output

b4-01

b4-02

b4-01

b4-02

ON

ON

ON

ON

Fig 7.20

Operation Example of Timer Function

J

PID Control Settings: b5-01 to b5-08

The PID control function is a control system that matches a feedback value (i.e., a detected value) to the set

target value. Combining proportional (P), integral (I), and derivative (D) control makes control possible

even for a mechanical system with dead time.
This section explains the PID control applications and operations, along with the constant settings and tun-

ing procedure.

PID Control Applications

Table 7.6 shows examples of PID control applications using the Inverter.

7

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