Hitachi L100 Series Instruction Manual page 123

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 opera-
tion is set by parameter A_38. Jogging does
not use an acceleration ramp, so we recom-
mend 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).
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
Option Terminal
Code Symbol
06 JG
Valid for inputs:
Required settings:
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
•
Be sure to stop the motor when switching the
function [JG] ON or OFF.
Input
Function Name
State
Jogging ON
OFF
C_01, C_02, C_03, C_04,
C_05
A_02= 01, A_38 > B_82,
A_38 > 0, A_39
value is 0 Hz.
1
[JG]
0
[FW],
1
[RV]
0
Jog
speed
A 38
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 3–32):
L 5 4
See I/O specs on page 4–6.
t
A 39
Jog decel type
JG
3 2 1 P24