Errors Patterns; Introduction; Overview Of Possible Error Patterns - HEIDENHAIN iTNC 530 Service Manual

5

Errors Patterns

5.1

Introduction

Not all error conditions on the control or machine can be shown by error messages on the
monitor.
Therefore, this chapter gives you an overview of errors with notes and tips on how to proceed.
Errors can also be defined in the categories of static errors (e.g., interruption in the electrical
Static and nonstatic
cabinet, defective unit) and nonstatic errors (e.g., loose connection, shielding problems,
errors
interferences).
Naturally, static errors can be found more easily.
Check whether you can reproduce a certain error on the machine at any time (nonsporadic error).
Sporadic and
This assists you in troubleshooting.
nonsporadic
The integrated log or the PLC logic diagram are some possibilities to investigate sporadic errors,
errors
as well as the integrated oscilloscope.
5.2

Overview of Possible Error Patterns

The following table shows an overview of specific errors on the machine or control, possible
causes of the errors as well as measures for finding these errors.
The potential measures for finding and correcting the errors are described in more detail in the
corresponding chapters.
Error
The iTNC monitor remains
dark after the machine has
been switched on.
The control does not boot
completely (error messages
related to the booting
procedure may be
displayed).
The Power interrupted
message cannot be
confirmed or the login
password cannot be entered
in a dual-processor control.
July 2010
DANGER
In case of errors that may lead to very high currents, e.g. ground fault or short circuit in
the drive, do not switch on the machine again!
First ensure that there are no defective units, cables, etc.
Then eliminate all ground faults and short circuits in the machine!
Note
Where it is possible and useful, you may switch the control off and on (after several
seconds) to observe, whether the error is generated again afterwards.
Possible cause of error
iTNC monitor defective
Power supply to monitor
defective
Power supply to MC
defective
Defective unit connected
to the control (short
circuit, etc.)
Hard disk defective
The key gets caught.
Measures for error
diagnosis and/or
corrective action
Check the visual display
unit BC
Check power supply to
MC
Disconnect defective or
suspicious units or cables,
Exchange MC or HDR or
drive assembly.
Check the keyboard.
Descriptions in this
manual
See "Visual Display Unit"
on page 21 – 355
See "Power Supply" on
page 17 – 251
See "Error Localization by
Process of Exclusion" on
page 6 – 66
See "Exchange of
HEIDENHAIN
Components" on page 28
– 523.
See "Keyboard Unit" on
page 22 – 359.
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