Siemens SINUMERIK 840D sl Equipment Manual

4. Connect the cable plug connector of the new battery to the mating connector in the dual fan/
battery module and push the battery in.
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Figure 10-1 Battery replacement in the dual fan/battery module
5. Tilt the dual fan/battery module forwards at an angle with the open side facing up (battery
visible).
6. Push the plastic guide into the cutouts on the underside of the NCU.
7. Tilt the dual fan/battery module up until the front interlock snaps into place. The electrical
connection between the dual fan/battery module and the NCU is established automatically.
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Note
The dual fan/battery module can be replaced during operation. If you choose to do this,
remember that the NCU can only be operated for a maximum of 1 minute without fans. If this
time is exceeded, it will shut itself down.
Spare Parts/Accessories
10.1 Replacing the dual fan/ battery module
NCU 7x0.3B PN
156 Equipment Manual, 10/2020, 6FC5397-1EP40-6BA1

Siemens SINUMERIK 840D sl Specifications

General

Control Type	CNC
Number of Axes	Up to 31
Max Number of Channels	10
Interfaces	Ethernet, PROFIBUS, PROFINET, USB
Interpolation	5-axis interpolation
Operating Temperature	0°C to 45°C
Relative Humidity	Up to 95% (non-condensing)
Display	TFT color display, various sizes
Programming Languages	DIN/ISO
Safety Features	Safety Integrated
PLC	Integrated PLC S7-300
Drive Interface	SINAMICS S120
Data Storage	CF card, USB
Operating System	Windows-based