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6. Daily Maintenance and Periodic Inspection and Maintenance
6.3 Replacement Methods
III-43
(b) 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.
(2) External battery unit battery
When the external battery unit (FCU6-BT4D1) is used, the data, such as the parameters and machining
programs, which needs to be backed up when the power is turned OFF, is held by the lithium battery
mounted on the external battery unit. The external battery unit is provided with one AA battery (E6) for the
control unit, and four AA batteries (ER6-B4D-01) for the servo amplifier.
The control unit battery is the same as the battery mounted on the control unit. The servo amplifier
battery's characteristics, such as the holding time, differs according to the servo amplifier configuration,
so refer to the servo amplifier manual.
Battery unit: FCU6-BT4D1
SH21
SH21
F240
CR05
System 1
To feed axis servo
amplifier
To auxiliary axis servo
amplifier
To NC control unit
∗ Provide an allowance in the cable wiring so that
the battery unit can be pulled out during replacement.
System 2
Servo battery
HR071
NC battery
Unit type : FCU6-BT4D1
Replacement part type : For NC ER6 BKO-NC2157H01 (single battery replacement)
For servo ER6-B4D-01 BKO-NC2151H06 (PCB unit replacement)