Hitachi L200 ADD Frequency Enable

4–32

Using Intelligent Input Terminals

ADD Frequency Enable

Operations and Monitoring

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

A001

Frequency source setting

Control terminal

+

∑

Output frequency setting

Function F001 setting

ModBus network input

+/–

Calculate function output

ADD direction select

ADD frequency

A146

A145

Intelligent input

[ADD]

Option

Terminal

Function Name

Input

Description

Code

Symbol

State

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, C002, C003, C004,

Example (requires input configuration—see

C005

page 3–42):

Required settings:

A001, A145, A146

ADD

Notes:

L

5

4

3

2

1

PCS

•A001 may specify any source; the Add Frequency

will be added to or subtracted from that value to yield the output frequency value.

See I/O specs on page 4–6.