Structure of the drive group
2.2 Layout of the Components
Guide for the SINUMERIK 840D sl machine configuring
2-8 Manual, 07/2006 Edition, 6FC5397-6CP10-0BA0
2.2 2.2 Layout of the Components
2.2.1 Layout and Fastening of the NCU/ NX Modules
Fastening of the NCU 7x0/ NX Modules
For the fastening of the NCU / NX modules, a differentiation is made between fastening
using direct installation, using fastening clip or using spacers.
The fastening of the NX component to the NCU differs depending on whether an NCU 710 or
an NCU 720/730 is used (cooling fins on the rear side of the NCU 720/730).
Fastening Possibilities
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Figure 2-6 NX-NCU fastening types
NCU 710 NX NCU 710+NXs
A (direct to the Line Module) possible possible –
B (with fastening clip) possible possible possible
C (with spacer) possible possible possible
NCU 720/730 NX NCU 720/730 +NXs
A (direct to the Line Module) possible possible –
B (with fastening clip) – possible –
C (with spacer) possible possible possible
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