430

Add Frequency Enable

The inverter can add or subtract an offset value to the output frequency setting which is specified by A001 (will work with any of the five possible sources). The ADD Frequency is a value you can store in parameter A145. The ADD Frequency is summed with or subtracted from the output frequency setting only when the [ADD] terminal is ON. Function A146 selects whether to add or subtract. By configuring an intelligent input as the [ADD] terminal, your application can selectively apply the fixed value in A145 to offset (positively or negatively) the inverter output frequency in real time.

Keypad potentiometer

Control terminal

Function F001 setting

ModBus network input

Calculate function output

A145 ADD frequency

Intelligent input

A001 Frequency source setting

+

Σ

Output frequency setting

 

+/-

 

 

 

A146

 

 

ADD direction select

[ADD]

 

 

Operations and Monitoring

Option

Terminal

Function Name

State

Description

Code

Symbol

 

 

 

50

ADD

ADD Frequency

ON

Applies the A145 Add Frequency value to the

 

 

Enable

 

output frequency

 

 

 

OFF

Does not apply the Add frequency. The output

 

 

 

 

frequency retains its normal value

Valid for inputs:

C001~C005

Required settings

A001, A145, A146

Notes:

 

A001 may specify any source; the Add Frequency will be added to or subtracted from that value to yield output frequency value.

Example (default input configuration shown—see page 3–49):

 

 

ADD

 

 

 

 

 

5

4

3

2

1

L

PCS

P24

See I/O specs on page 4–6.

Page 169
Image 169
Hitachi X200 Series instruction manual Add Frequency Enable, A001, A145, A146