Hitachi SJ300 Series Two-stage, Deceleration, Acceleration and, Opt, Code, Input, State, Symbol, Required, settings:, Description, Function Name, Valid for inputs:

4–19

SJ300 Inverter

Two-stage

Acceleration and

Deceleration

When terminal [2CH] is turned ON, the inverter changes the rate of acceleration and deceleration from the initial settings (F002 and F003) to use the second set of accelera- tion/deceleration values. When the terminal is turned OFF, the inverter is returned to the original acceleration and deceleration time (F002 acceleration time 1, and F003 deceleration time 1). Use A092 (acceleration time 2) and A093 (deceleration time 2) to set the second stage acceleration and deceleration times.

Output
frequency			target frequency
		second
Input	initial
				t
signals
[2CH]
[FW, RV]

In the graph shown above, the [2CH] signal becomes active during acceleration. This causes the inverter to switch from using acceleration 1 (F002) to acceleration 2 (A092).

Opt.

Symbol

Function Name

Input

Description

Code

State

09

2CH

Two-stage Accelera-

ON

Frequency output uses 2nd-stage accelera-

tion and Decelera-

tion and deceleration values

tion

OFF

Frequency output uses the initial accelera-

tion 1 and deceleration 1 values

Valid for inputs:

C001, C002, C003, C004,

Example: (Default input configuration

C005, C006, C007, C008

shown—see page 3–47. Jumper position

shown is for –xFU/-xFR models; for –xFE

Required

A092, A093, A094=0

models, see page 4–12.)

settings:

2CH

Notes:

TH

FW

8

CM1

5

3

1

• Function A094 selects the method for second

P24

PLC

CM1

7

6

4

2

stage acceleration. It must be set = 00 to

select the input terminal method in order for

the [2CH] terminal assignment to operate.

Operations Monitoring and

See I/O specs on page 4–9.