1. METHOD OF REPLACING BATTERY
METHOD OF REPLACING BATTERY
This chapter describes the method of replacing batteries as follows.
1.1 REPLACING CNC BATTERY FOR MEMORY BACK–UP
1.2 REPLACING BATTERIES FOR ABSOLUTE PULSE CODER
1.3 REPLACING BATTERY FOR ABSOLUTE PULSE CODER
( Series Servo Amp Module)
The CNC has a battery to backup the memory devices for part programs,
offset data, system parameters and so on. When the battery was reaching
the low level, the CNC would display a warning sign
BAT on the screen
before losing the important data in the memory.
When you find the sign
BAT , please replace the battery as soon as
possible. If you left the CNC power off for more than one week without
changing the battery, the data in the CNC memory could get lost.
When the machine is equipped with absolute encoder. System such as an
absolute pulse coder or absolute linear scale, there is a battery for them
separately from the battery for memory backup.
When you get an alarm message No. 307 or 308 APC alarm, please
replace the battery as soon as possible following the instructions in 1.2 or
1.3, or the absolute position could be lost and it would be required to take
a procedure of manual reference point return.
Replacing the memory backup battery
To replace the memory backup battery, first turn on the
power to the machine (CNC), then perform an emergency
stop. Replacement of the memory backup battery requires
that the cabinet be opened while the power is turned on.
Therefore, this work must be performed only by a person
who has received approved training in maintenance and
When opening the cabinet and replacing the battery, be
careful not to touch any high–voltage circuits (fitted with
safety covers, indicated by ). Check that the safety
covers have not been removed. Removing the covers
presents a serious electric shock hazard.
Battery for Memory
Battery for Absolute