Siemens SINUMERIK 840D sl Equipment Manual

Spare Parts/Accessories
10
10.1 Replacing the dual fan/ battery module
Procedure
Proceed as follows to replace the dual fan/battery module but only observe points 3 and 4 if you
want to replace the battery as well:
1. Gently push the dual fan/battery module backwards (by pressing on the pressure point) to
release the module from its front interlock (snap-in hooks).
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NOTICE
Forcibly withdrawing the module can permanently damage it
Never pull the dual fan/battery module out abruptly without having released the interlock.
This would break the snap-in hooks and you would not be able to reinsert the module.
2. Tilt the dual fan/battery module forward at an angle and pull out the plastic guide from the
NCU cutout.
3. Remove the battery by 󹪝rst removing the plug connector and then taking out the battery.
NCU 7x0.3B PN
Equipment Manual, 10/2020, 6FC5397-1EP40-6BA1 155

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