Please Note While Programming - HEIDENHAIN TNC 640 User Manual

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Please note while programming:

Danger of collision!
Check the unbalance whenever you clamp a new workpiece. If
required, use balancing weights to compensate any imbalance.
If a large unbalance is not compensated this may cause machine
defects.
Perform Cycle 892 when starting a new machining step
If necessary, compensate the unbalance with counterweights
Danger of collision!
The removal of material during machining will change the mass
distribution within the workpiece. This generates the unbalance,
which is why an unbalance test is recommended even between
the machining steps. If a large unbalance is not compensated
this may cause machine defects
Perform Cycle 892 also between machining steps
If necessary, compensate the unbalance with counterweights
Danger of collision!
Large unbalance loads can damage the machine mainly with
a high mass. Keep in mind the mass and unbalance of the
workpiece when choosing the speed.
Do not program high speeds with heavy workpieces or high
unbalance loads.
484
Cycles: Turning | CHECK UNBALANCE (Cycle 892, DIN/ISO: G892)
NOTICE
NOTICE
NOTICE
HEIDENHAIN | User's manual for cycle programming | 10/2017