Jogging Command - Hitachi SJ200 Series Instruction Manual

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 opera-
tion is set by parameter A038. Jogging does
not use an acceleration ramp, so we recom-
mend setting the jogging frequency A038 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 A002 (Run command source).
The type of deceleration used to end a motor jog operation is selectable by programming
function A039. The options are:
• 00 Free-run stop (coasting)
• 01 Deceleration (normal level) and stop
• 02 Use DC braking and stop
Option Terminal
Code Symbol
06 JG Jogging
C001, C002, C003, C004,
Valid for inputs:
C005, C006
A002= 01, A038 > B082,
Required settings:
A038 > 0, A039
Notes:
•
No jogging operation is performed when the set
value of jogging frequency A038 is smaller than the
start frequency B082, or the
•
Be sure to stop the motor when switching the
function [JG] ON or OFF.
Input
Function Name
State
ON
OFF
value is 0 Hz.
SJ200 Inverter
1
[JG]
0
[FW],
1
[RV]
0
Jog
speed
A038
Description
Inverter is in Run Mode, output to motor runs at
jog parameter frequency
Inverter is in Stop Mode
Example (requires input configuration—see
page 3–41):
L 6 5 4
See I/O specs on page 4–6.
4–15
t
A039
Jog decel type
JG
3 2 1 PCS