4–12

Using Intelligent Input Terminals

Jogging Command

The Jog input [JG] is used to command the motor to rotate slowly in small increments for manual operation. The speed is limited to

10 Hz. The frequency for the jogging operation is set by parameter A_38. Jogging does not use an acceleration ramp, so we recommend setting the jogging frequency A_38 to 5 Hz or less to prevent tripping.

When the terminal [JG] is turned ON and the Run command is issued, the inverter outputs the programmed jog frequency to the motor. To enable the Run key on the digital operator for jog input, set the value 01(terminal mode) in A_02 (Run command source).

[JG] 1 0

[FW], 1 [RV] 0

Jog

speed

A 38

A 39 Jog decel type

t

The type of deceleration used to end a motor jog operation is selectable by programming function A_39. The options are:

00 Free-run stop (coasting)

01 Deceleration (normal level) and stop

02 Use DC braking and stop

Operations and Monitoring

Option

Terminal

Function Name

 

Input

 

 

Description

Code

Symbol

 

State

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

06

JG

Jogging

 

ON

Inverter is in Run Mode, output to motor runs at

 

 

 

 

 

jog parameter frequency

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

Inverter is in Stop Mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Valid for inputs:

C_01, C_02, C_03, C_04,

Example (requires input configuration—

C_05

 

 

 

 

see page 3–32):

 

 

 

 

 

Required settings:

A_02= 01, A_38 > B_82,

 

 

 

 

JG

 

 

A_38 > 0, A_39

 

 

 

 

 

 

 

 

 

 

 

L

5

4

3

2

1

P24

 

Notes:

 

 

 

 

No jogging operation is performed when the set

 

 

 

 

 

 

 

 

 

 

 

 

value of jogging frequency A_38 is smaller than the

 

 

 

 

 

 

 

 

 

 

 

 

start frequency B_82, or the value is 0 Hz.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Be sure to stop the motor when switching the

 

 

 

 

 

 

 

 

 

 

 

 

function [JG] ON or OFF.

 

See I/O specs on page 4–6.