Hitachi L700 SERIES Instruction Manual page 112

Chapter 4 Explanation of Functions
4.2.42 Jogging (JG) command setting
The jogging command setting function allows you to set and finely
tune the motor-stopping position.
To use this function, assign function "06" (JG) to an intelligent input
terminal.
(1) Jog frequency setting
Output frequency
Since the inverter operates the motor with a full voltage for the jogging operation, the inverter can easily
trip during the latter. Adjust the jog frequency setting (A038) properly so that the inverter will not trip.
Item Function code
Jog frequency
setting
(2) Jog stop mode
Item Function code
Jog stop mode
Note 1: To perform the jogging operation, always turn on the JG terminal before turning on the FW or RV
terminals. (Follow this sequence of command inputs also when using the digital operator to enter
operation commands.)
(Example 1)
JG
FW
Output
frequency
When "00", "01", or "02" is specified for the jog stop
mode (A039), the jogging operation will not be
performed if the FW signal is turned on earlier than
the JG signal.
Note 2: You must set DC braking data if you specify "02" or "05" for the jog stop mode (A039). (See
Section 4.2.19.)
Range of data
0.0 or "start frequency"
A038
to 9.99 (Hz)
Data
00
01
02 (See Note 2.)
A039
03
04
05 (See Note 2.)
A038: Jog frequency setting
A039: Jog stop mode
C001 to C008: Terminal [1] to [8] functions
Setting of the frequency to output during jogging
operation
Disabling jogging while the motor is operating and
enabling free-running when the motor is stopped
Disabling jogging while the motor is operating and
enabling stopping after deceleration when the
motor is stopped
Disabling jogging while the motor is operating and
enabling DC braking when the motor is stopped
Enabling jogging while the motor is operating and
enabling free-running when the motor is stopped
Enabling jogging while the motor is operating and
enabling stopping after deceleration when the
motor is stopped
Enabling jogging while the motor is operating and
enabling DC braking when the motor is stopped
(Example 2)
JG
FW
Normal
operation
Output
frequency
Acceleration according to the setting of "b088"
When "03", "04", or "05" is specified for the jog stop mode
(A039), the jogging operation will be performed, even if the
FW signal is turned on earlier than the JG signal. However,
the motor will stop after free-running if the JG signal is turned
off earlier than the FW signal.
4 - 50
Related code
Description
Description
Deceleration
Jogging operation
Free running