Hardware Descriptions
2.2 MCI2 board for 840Di sl
Manual
52 Commissioning Manual, 05/2008, 6FC5397–4CP10–4BA0
NOTICE
This module contains electrostatically sensitive components.
Discharge yourself of electrostatic energy before touching the components. The easiest
way to do this is to touch a conductive, grounded object immediately beforehand (for
example, bare metal parts of control cabinet or the protective ground contact of a socket
outlet).
Implementation
To change the module, proceed as follows:
1. Check that there is a suitable series startup file (NCK and PLC) available before
removing the module.
For information on how to create a series startup file, please refer to Chapter
"User-data
backup/series startup" (Page
541).
2. Shutdown SINUMERIK 840Di sl or Windows XP properly.
To do this, use one of the following options:
– Windows taskbar: Start > Shut Down.
– Interface signal: "PC shutdown", see Subsection
"840Di sl-specific interface
signals" (Page
587).
3. Disconnect the device from the mains.
4. Remove the screws from the cover of the housing (Fig. ) and open the housing of your
PC, observing the relevant safety regulations.
Screws of the
cover of housing
Figure 2-3 Cover of the housing of the PCU 50.3
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