Siemens sinumerik 828d Service Manual page 154

Service cases - hardware
4.10 Single Motor Modules
7. Open the protective cover of the DC link voltage of the defective module as well as the
8. Withdraw the 24 V terminal adapter.
9. Using a multimeter (set the measuring range to 1000 V DC) at the points DCP/DCN,
10. Withdraw the red 24 V jumper plug.
11. Release the Torx screws of the DC link.
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adjacent module - if available - using a suitable tool (e.g. a screwdriver).
check that the DC link voltage is in a no-voltage condition.
Only continue with the work when it has been absolutely ensured that no voltage is
present (a no-voltage condition has been established).
Hardware and Software
Service Manual, 03/2011, 6FC5397-5DP40-0BA0