Mitsubishi Electric MELDAS 600M Series Instruction Manual page 423

7.2 Replacement
7.2.1 Replacing the battery
Data such as parameters and machining programs that must be backed up when the power is OFF is
saved by a lithium battery installed in the control section battery holder.
Battery ...................................................... ER6 with connector (Toshiba with Mitsubishi Electric
Initial battery voltage................................. 3.6V
Low battery voltage detection voltage ...... 2.8V (LOW BATTERY VOLTAGE CAUTION ALARM)
Total time data is saved by the battery ... 45,000 hours (At room temperature. Total time will be
Battery life................................................. Approx. 5 years. (From the date of manufacture.)
Discharge current ..................................... 40µA or less
(Replace the battery immediately if a LOW BATTERY VOLTAGE CAUTION ALARM appears. The
internal data may be destroyed if the LOW BATTERY VOLTAGE WARNING ALARM appears.)
(1) Replacement procedure
Turn the control section power OFF when replacing the battery.
Complete the battery replacement within 30 minutes of turning the power OFF. (If a battery is not
connected within 30 minutes of turning the power OFF, the data backed up by the battery may be
destroyed.)
1) Confirm that the control unit power is OFF. (If the power is not OFF, turn it OFF.)
2) Open the operation box door, and open the front cover to 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
5) Replace the battery with the new one. Insert the connector connected to the new battery into
6) Fit the battery into the battery holder.
7) Close the front cover of the control section, and close the operation box door.
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HR081 PCB.
the BAT connector on the control section HR081 PCB.
HR081
BAT connector
Connector
Battery holder
Battery
Front cover
Open the front cover
of the control section.
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CHAPTER 3 MAINTENANCE
7. Daily Maintenance
specifications)
2.6V (LOW BATTERY VOLTAGE WARNING ALARM)
shorter at high temperatures.)
III – 37
Control section