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6. Daily Maintenance and Periodic Inspection and Maintenance
6.3 Replacement Methods
III-44
(a) NC side battery replacement procedures
Always replace the external battery unit's battery with the control section (machine) power turned ON.
(This is because there is no need to open the machine's electric cabinet door.)
1) Remove the four screws on the front cover, and pull the external battery unit out.
2) Remove the two screws on the cable relay PCB HR071, and remove the HR071A card.
3) Remove the battery (ER6) from the battery holder.
4) Pull the connector connected to the battery from the BAT connector on the cable relay PCB
HR071.
5) Replace the battery with a new one. Insert the connector connected to the new battery to the BAT
connector on the cable relay PCB HR071. Pay attention to the connector orientation, being careful
not to insert backwards.
6) Fit the battery into the battery holder.
7) Fix the cable relay PCB HR071 onto the external battery unit, and insert and fix the external
battery unit into the electric cabinet.
(b) Servo side battery replacement procedures
The absolute position data is backed up with the feed axis servo and auxiliary axis servo systems.
Thus, if the battery voltage drop warning occurs in either the feed axis servo or auxiliary axis servo,
the battery (ER6-B4D-01) must be replaced. The battery (ER6-B4D-01) is an assembled battery PCB
type. The battery is replaced with the amplifier control power ON in the same manner as the control
section replacement procedures.
If the battery voltage drop warning occurs, do not turn the amplifier control power OFF. (There is no
need to turn ON the main circuit power or cancel the emergency stop.)
If the battery voltage drop warning alarm occurs, the programs, tool data and parameters could
be damaged. Thus, reload each data with the input/output device after replacing the battery.
Do not short circuit, charge, overheat, incinerate or disassemble the battery.
Dispose the spent battery according to local laws.
CAUTION