Diagnostic Steps - Siemens SINUMERIK 808D Service Manual

Service case
of hardware
fault
Overload
Fault description:
The machine cannot move or moves difficultly because of overload (the
drive may issue an overload alarm).

Diagnostic steps

Check whether the guide lubrication is sufficient
1. Whether the tubing/nozzle is unimpeded.
2. Whether the setting of the lubrication interval time is sufficient (the
interval should not be too long).
Stop the machine and check whether the guides / the screw are blocked by
the machining waste. If so, it may need proper cleaning.
Check the connection of the shaft coupling
1. Whether the connection is too tight.
2. Whether the connection is concentric.
Service guide page 20 808D turning and milling