Spare Parts/Accessories; Replacing The Dual Fan/ Battery Module - Siemens SINUMERIK 840D sl Equipment Manual

Spare Parts/Accessories

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).
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 first removing the plug connector and then taking out the battery.
NCU 7x0.3B PN
Equipment Manual, 10/2020, 6FC5397-1EP40-6BA1
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.
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