HEIDENHAIN iTNC 530 Service Manual page 299

Additional The following flow chart shows the interrogation whether the currents (I nominal) of the gantry
information on gan- axes deviate considerably. A maximum tolerable current value cannot be given as different
try axes drives, motors and mechanical designs are used.
A misalignment of the gantry axes may be the result, for example, of the emergency stop of the
machine when the scale failed.
If this is the case, contact the machine manufacturer!
The following proceeding would be possible:
May 2006
Separate the master-slave relation in MP 850.x.
Switch on the jog increment function.
Enter a very low jog increment (0.001 ... 0.01 mm).
Call the integrated oscilloscope and record the current values (I nominal) of the ganty axes.
--> See "Integrated Oscilloscope" on page 8 – 49
Move master axis with this jog increment to a position with a minimum difference of current
of both gantry axes. --> The mechanical strain has been eliminated!
Restore master-slave relation in MP 850.x.
Further procedure as described in the flow chart.
Note
In case the monitoring tolerances for speed stability and standstill have been set reasonably,
it can be prevented that the gantry axes traverse mutually too long if the counting direction
of the position encoder signals (MP 210) is wrong.
Contact the machine manufacturer!
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