HEIDENHAIN iTNC 530 Service Manual page 63

Flowchart
July 2010
Sequence for finding errors in the control loop
Check lubrication, tools, mechanics, e.g.:
Oil level, lubricating film, blunt or damaged tools, guideways,
tools, mechanics
Check hydraulics, pneumatics, brakes for e.g.:
Weight balance, Hirth coupling, motor brakes
pneumatics, brakes
Check coupling system, e.g:
Belt tension, gear, coupling
Check drive system, e.e.:
Motors including cables, servo amplifiers, servo drives
Check control, e.g.:
Interface to the drives, interface to the measuring systems
connected devices okay?
Call the machine tool builder or a HEIDENHAIN service agency
ballscrew
No
Lubrication,
okay?
Yes
No
Hydraulics,
okay?
Yes
No
Coupling
system
okay?
Yes
No
Drive
system
okay?
Yes
No
Control and
Yes
Ensure sufficient lubrication,
replace faulty tools,
correct mechanical errors
Remove faults in hydraulics,
pneumatics, brakes
Correct error in coupling system
Correct error in drive system
Replace defective control or
faulty encoders or
defective cables
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