Hitachi SJ700-2 instruction manual Jogging JG command setting, Jog stop mode

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

JG

FW

RV

Output frequency

A038

Related code

A038: Jog frequency setting

A039: Jog stop mode

C001 to C008: Terminal [1] to [8] functions

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	Range of data	Description
Jog frequency	A038	0.0 or "start frequency"	Setting of the frequency to output during jogging
setting		to 9.99 (Hz)	operation

(2) Jog stop mode

Item	Function code	Data	Description
		00	Disabling jogging while the motor is operating and
			enabling free-running when the motor is stopped
		01	Disabling jogging while the motor is operating and
			enabling stopping after deceleration when the
			motor is stopped
		02 (See Note 2.)	Disabling jogging while the motor is operating and
Jog stop mode	A039		enabling DC braking when the motor is stopped
		03	Enabling jogging while the motor is operating and
			enabling free-running when the motor is stopped
		04	Enabling jogging while the motor is operating and
			enabling stopping after deceleration when the
			motor is stopped
		05 (See Note 2.)	Enabling jogging while the motor is operating and
			enabling DC braking when the motor is stopped

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) (Example 2)

JG

FW

Output frequency

JG
FW		Deceleration
	Normal	Jogging operation
	operation
Output

frequency	Free running
	Acceleration according to the setting of "b088"

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.

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.

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.)

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