4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
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4.3.2 Durable parts
(1) Battery
All data, such as the parameters and machining programs that need to be backed up when the
power is turned OFF, are saved by a lithium battery installed in the control unit's battery holder.
Battery ................................ With ER6 connector (Toshiba with Mitsubishi specifications)
Initial battery voltage .......... 3.6V
Voltage at which voltage .... 2.8V (Battery voltage drop caution alarm)
drop is detected
2.6V (Battery voltage drop warning alarm)
Battery back up time ........... 45,000 hours (At room temperature. The life will be shorter if the
temperature is high.)
Battery life .......................... Approx. 5 years (from date of battery manufacture)
Discharge current ............... 40
µ
A or less
(Replace the battery when the battery voltage drop caution alarm appears. The internal data
could be damaged if the battery voltage drop warning alarm appears.)
a) Replacement procedures
Always replace the battery with the control section power turned OFF.
Complete the replacement within 30 minutes after turning the power OFF. (If the battery is not
connected within 30 minutes, the data being backed up will be destroyed.)
①
Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
②
Open the operation box door, and then open the front cover of the control section.
③
Remove the battery from the battery holder.
④
Pull the connector connected to the battery out from the BAT connector on the control section
PCB HR081.
⑤
Insert the connector connected to the new battery into the BAT connector on the control
section PCB HR081.
⑥
Fit the battery into the battery holder.
⑦
Close the front cover of the control section, and then close the operation box door.
HR081
BAT connector
Connection connector
Battery holder
Battery
Front cover
Open the front cover
of the control section.
Control section
Precautions for handling battery
• Always replace the battery with the same type.
• Do not disassemble the battery.
• Do not place the battery in flames or water.
• Do not pressurize and deform the battery.
• This is a primary battery so do not charge it.
• Dispose of the spent battery as industrial waste.
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 replace the battery while the power is ON.
Do not short circuit, charge, overheat, incinerate or disassemble the battery.
Dispose the spent battery according to local laws.
CAUTION