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7. Diagnosis
7.9 Auxiliary Axis Parameter
I
-300
7.9.2 Backup
SRAM backup of the auxiliary axis parameters and absolute position restoration during amplifier
replacement are executed on the BACKUP screen.
Only execute the operations during amplifier replacement.
(1) Procedure during MR-J2-CT amplifier replacement
The following shows the procedure during MR-J2-CT amplifier replacement. The operation is carried out
on the BACKUP screen.
The absolute position of the current MR-J2-CT must be established first before carrying out this operation.
(a) SRAM backup of the auxiliary axis parameters
The current amplifier data is backed up in the SRAM of the CNC when the amplifier is replaced.
The following shows the procedure for SRAM backup of the auxiliary axis parameters.
[BACKUP] ALARM/DIAGN 9. 11/11
AUX-PARA
#1 MR-J2-CT-> SRAM
#2 SRAM -> MR-J2-CT
ABS POS.
#3 ABS POS RESTORE
#(1) (1) (Y) BACKUP COMPLETE
AUX-PRM AUX-MON MENU
Input "(1) (a)" from the BACKUP screen. (a: axis No. (1 to 4))
After inputting, the message "CONTINUE Y/N" will appear for confirmation of the data backup. The
data is backed up in the SRAM only if "(Y)" is input.
The message " BACKUP EXECUTION " will appear when the backup operation is carried out.
The message "BACKUP COMPLETE" will appear when the backup operation is finished.
If MR-J2-CT is not connected, the message "E01 SETTING ERROR" will occur, and the data will not
be backed up.
After the procedure is finished, turn OFF the CNC and MR-J2-CT power supply, and replace
MR-J2-CT amplifier.
After replacing the MR-J2-CT amplifier, set the MR-J2-CT rotary switch to "7". Turn the CNC and
MR-J2-CT power supply ON, wait for the 7-segment display to change from dot display, and then turn
the power OFF. The auxiliary axis parameter data is written and the absolute position restored after
the axis is set with the rotary switch and the power is turned ON again.
(Note)
Turning ON the power supply with the MR-J2-CT rotary switch set to "7" initializes the parameters.
If an amplifier with the absolute position established is replaced without carrying out this operation,
the machine position will be created with the old amplifier's data.