July 2010 4 – 21
4Error Messages
4.1 Introduction
iTNC features a comprehensive integral monitoring system for the prevention of input or
operation errors, as well as for identification and diagnosis of technical defects on the control
and the connected devices. The monitoring system is an integral component of the iTNC
hardware and software and is active as long as the control is switched on. The presence of a
technical fault or an operation error is made known through a plain-language message.
The effect of the monitoring functions is described in the annex -- .> See “Annex: Monitoring
Functions” on page 3 – 661.
Moreover, the machine manufacturer can define specific PLC error messages.
Type of error
message
PLC error messages
Machine-specific error messages
Are defined by the machine manufacturer (e.g., coolant pump defective, protective door
open).
The machine manufacturer defines how the control reacts to a PLC error message (NC Stop,
EMERGENCY STOP, etc.).
The machine manufacturer defines whether the control can still be operated or has to be
rebooted after a PLC error message.
If you have any questions, please contact your machine manufacturer.
NC error messages
Are part of the HEIDENHAIN NC software.
Can be subdivided into error messages that result from operation, programming and machine
applications and those that indicate a technical defect (devices, electronic and mechanical
components, etc.)
HEIDENHAIN defines how the control reacts to an NC error message (NC Stop, EMERGENCY
STOP, etc.)
HEIDENHAIN defines whether the control can still be operated or has to be rebooted after an
NC error message.
If you have any questions, please contact your machine manufacturer and/or HEIDENHAIN.
Is the displayed error message an NC or PLC error message?
Operating-system error messages
Often contain the note CHILD PROCESS ERROR.
The control cannot be operated any more and has to be rebooted.
If you have any questions, please contact your machine manufacturer and/or HEIDENHAIN.
Display PLC error message NC error message
ERR window in the column
"Group".
Call -->
See “ERR Key” on page 4 – 26.
PLC GENERAL
or
OPERATION
or
PROGRAMMING
Log
Call -->
See “Log” on page 8 – 81.
P- (number and text of
error message)
N- (number and text of
error message)
There are no error numbers assigned to NC error messages that begin with N-1.